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          PRODUCTS
          PRODUCTS
          YOUR LOCATIONHOME >> PRODUCTS >> gate valve Series >> forged steel gate valve
          PRODUCT DESCRIPTION
          forged steel gate valve
          PRODUCT DETAILS

          Ansi forged gate valve

           

          Size Main Dimensions

          DN

          150-600Lb

          mm

          in

          L

          H

          D

          M(NPT)

          b1

          b2

          Do

          15

          1/2

          80

          160

          21.8

          1/2

          9.7

          13.6

          100

          20

          3/4

          92

          165

          27.1

          3/4

          12.7

          13.9

          100

          25

          1

          111

          192

          33.8

          1

          12.7

          17.3

          125

          32

          3/4

          120

          220

          42.6

          11/4

          12.7

          18.0

          160

          40

          11/2

          120

          245

          48.7

          11/2

          12.7

          18.4

          160

          50

          2

          140

          285

          61.1

          2

          15.7

          1912

          180

          900-1500Lb

          15

          1/2

          111

          203

          21.8

          1/2

          9.7

          13.6

          100

          20

          3/4

          115

          216

          27.1

          3/4

          12.7

          13.9

          100

          25

          1

          120

          235

          33.8

          1

          12.7

          17.3

          125

          32

          11/4

          140

          275

          42.6

          11/4

          12.7

          18.0

          160

          40

          11/2

          162

          320

          48/7

          11/2

          12.7

          18.4

          160

          50

          2

          180

          368

          611

          2

          15.7

          19.2

          180

          Ansi Gate Valve Series:Gate Valve

           

          Design and Manufacture:Cast steel gate valve to API
          600(ISO 10434)or API 6D:Cast stainless steel gate valve
          to API 603 or API 600:Forged steel gate valve to API602
          lnspection and Test:API 598,API600 or AI6D
          End flange dimension:ASME B16.5 (for NPS24)
          ASM B16.47 series BAPI605 or ASME B16.47 series AMSS SP-44(for NPS24)
          BW end dimension:ASME B16.25
          Socket-weld dimension: ASME B16.11
          Face to face and end to end:ASME B16.10
          Pressure-temperature ratings:ASME B16.34

          Gasket of Cover Flange

          Carbon steel or stainless steel+flexible graphite combined gasket is used for class 150 gate valve;Stainless steel+flexible graphite wounded gasket is used for Class300 gate valve;Stainless steel+flexible graphite wounded gasket is used for Class600 gate valve,and ring joint gasket is also optional for Class600 gate valve;Ring Joint gasket is used for Class900 gate valve,Pressured seal design is used for Class1500-Class500 gate valve;

          Body and Bonnet Connection

          The body and bonnet of Class150-Class900 gate valves are usually connected with studs and nuts.And The body and bonnet of Class 1500-Class2500 gate valves are usually of pressured seal design.

          Belleville Spring Loaded Packing lmpacting System

          lf being requested by the customer,the Belleville spring loaded packing impacting system can be

          adopted for enhancing the durability and reliability of the packing seal.

          Packing Seal

          Molded flexible graphite is used for packing material,PTFE or combined packing material can be also listed if being requested by the customer.The internal surface of the stuffing box,of which area is contacted with the packing,is of excellent finish (Ra3.2m).The stem surface,contacting with the packing,should be rolled and pressed after being precisely machined,so as to reach to the high finish and compactness (Ra0.8m)and ensure the reliable tightness of the stem area.

          Actuation

          Hand wheel or gear box is usually used for gate valve actuation,Chain wheel and electric actuator can be also used for gate valve actuation if being requested by the customers.

          Back Seating Design

          All our gate valves have the back seating design.ln most cases,the carbon steel gate valve is fitted with a renewable back seat,For stainless steel gate valve,the back seat is machined directly in the bonnet or is machined after welding.Welding.When the gate valve is at fully open position ,the sealing of the back seat can be very reliable,However,asp per the requirement of API 600,it is not advisable to add or change packing by the mean of back seating wen the valve is res sure containing

          Design of Disc

          Gate valves with NPS2 are of wedge flexible gate;
          Gate valves with NPS2 are of wedge solid gate.

          Stem Design

          the stem is of integral for ged design,The minimum diameter of the stem shall per the standard requirement,The connection of the stem and disc is T type. The strength of the connecting area is bigger than that of the T threaded part of the stem.The strength test of that area conforms to API 598.

          Seat

          For carbon steel gate valve,the seat is usually forged steel.The sealing surface of the seat is spray welded with hard alloy specified by the customer,Renewable threaded seat is used for NPS10 gate valves,and welded on seat can be also optional if being requested by the customer Welded on seat is used for NPS10 Carbon steel gate valves. For Stainless steel gate valve,integral seat is usually adopted,or to weld hard alloy directly integrally.Threaded or welded on s-eat is also optional for stainless steel gate valve if being requested by the customer.

          Special Gate Valve

          Besides the common gate valves,ZC also makes cryogenic gate valve,Jacketed Gate valve,Bellow Sealed Gate Valve,Extension Stem Gate Valve for underground application,Flat Gate Valve,etc

          Stem Nut

          Usually,the stem nut is made of ASTM A439 D2 it is also can be made of copper ally if being requested by the customer.For large sized gate valves (NPS10 for Class 150,NPS 8 for Class300,NPS 6 for Class 600,NPS 5 for Class900),rolling bearing is fitted at the two sides of the stem nut in order to minimize the open and close torque of the gate valve.

           

          Administer Standard

          Design And Manufacture

          Face to face/
          End to end

          Flange Dimension

          Butt welding dimension

          Pressure temperature Lating

          Lnspection
          And Test

          API 600

          ANSI B16.10

          ANSI B16.5

          ANSI B16.25

          ANSI B16.34

          API 598

          API 6D

          API 6D

          ANSI B16.5

          ANSI B16.25

          ANSI B16.34

          API 6D

          Pressure Test

          Nominal Pressure

          Shell Test

          water Seal Test

          Air Seal Test

          MPa

          Lbf/in2

          MPa

          Lbf/in2

          MPa

          Lbf/in2

          150

          3.0

          430

          2.2

          315

          0.4-0.7

          60-100

          300

          7.7

          1110

          5.7

          815

          600

          15.3

          2220

          11.3

          1630

          900

          23.0

          3330

          17.0

          2445

          1500

          38.4

          5560

          28.2

          4080

          2500

          64.0

          9255

          47.0

          6790

          Main Part Materials and Property

          Body Cover Disc

          Stem

          Sealing Face

          Sealing Shin

          Packing

          Working Temperature

          Suitable Medium

          WCB

          F6a

          With Body
          Material
          PTFE
          Nylon

          Enhanced Flexible Graphite 1Cr13/Flexible
          Graphite SFB-2 Soft Steel F304 F316 F304L
          F316L

          Flexible Graphite
          Enhanced Flexible
          graphite SFB/260
          SFP/260 PTFE

          425

          Water
          Steam
          Petroleum
          Propducts

          WC1

          F11
          F12

          450

          WC6

          540

          WC9

          570

          C5 C12

          540

          CF8

          F304

          200

          Nitric acid
          Acetic acid Urea


           

          Size Main Dimensions

          DN

          150Lb RF

          film

          in

          L

          D

          D1

          D2

          b

          n-d

          H

          Do

          15

          1/2

          108

          89

          60.5

          35

          11.2

          4-16

          169

          100

          20

          3/4

          117

          98

          69.9

          43

          12.7

          4-16

          192

          100

          25

          1

          127

          108

          79.2

          51

          14.2

          4-16

          230

          120

          32

          11/4

          140

          117

          89.0

          63

          16.0

          4-16

          246

          150

          40

          11/2

          165

          127

          98.6

          73

          17.5

          4-16

          283

          180

          50

          2

          178

          152

          120.7

          92

          19.0

          4-19

          323

          200

          65

          21/2

          190

          178

          139.7

          105

          22.4

          4-19

          347

          220

          80

          3

          203

          190

          152.4

          127

          24.0

          4-19

          383

          240

          100

          4

          229

          229

          190.5

          157

          24.0

          8-19

          457

          250

          125

          5

          254

          254

          216.0

          186

          24.0

          8-22.5

          632

          280

          150

          6

          267

          279

          241.3

          216

          25.4

          8-22.5

          635

          300

          200

          8

          292

          343

          298.5

          270

          28.4

          8-22.5

          762

          350

          250

          10

          330

          406

          362.0

          324

          30.2

          12-25.4

          892

          400

          300

          12

          356

          483

          431.8

          381

          32.0

          12-25.4

          1080

          450

          350

          14

          381

          533

          476.3

          413

          35.0

          12-29

          1295

          500

          400

          16

          406

          597

          539.8

          470

          36.6

          16-29

          1435

          550

          450

          18

          432

          635

          577.9

          533

          39.6

          16-32

          1626

          600

          500

          20

          457

          698

          635.0

          584

          43.0

          20-32

          1829

          600

          600

          24

          508

          813

          749.3

          692

          47.8

          20-35

          2175

          650

          650

          26

          559

          786

          744 5

          711

          41.1

          36-22.5

          2235

          700

          700

          28

          610

          837

          795.3

          762

          44.5

          40-22.5

          2310

          750

          750

          30

          610

          887

          846

          813

          44.5

          44-22.5

          2695

          800

          800

          32

          660

          941

          900

          864

          46.0

          48-22.5

          3708

          850

          900

          36

          711

          1057

          1009.7

          972

          52.3

          44-25.4

          3924

          900

          1000

          40

          812

          1175

          1120.6

          1080

          55.6

          44-28.5

          4318

          950

          1050

          42

          787

          1226

          1171.5

          1130

          58.7

          48-28 5

          -

          1000

          1200

          48

          914

          1392

          1335

          1289

          65

          44-32

          -

          1000

          1350

          54

          -

          1549.4

          1492.3

          1441.5

          71.4

          56-32

          -

          1200

          1400

          56

          -

          1600

          1543

          1492.3

          73.2

          60-32

          -

          1250

          1500

          60

          1067

          1725.7

          1662.2

          1600

          76.2

          52-35

          -

          1300


           

          Size Main Dimensions

          DN

          300Lb RF

          mm

          in

          L

          D

          D1

          D2

          b

          n-d

          H

          Do

          15

          1/2

          140

          95

          66.5

          35

          14.2

          4-16

          169

          120

          20

          3/4

          152

          117

          82.5

          43

          16.0

          4-19

          193

          150

          25

          1

          165

          123

          89.0

          51

          17.5

          4-19

          230

          160

          32

          11/4

          178

          133

          98.5

          63

          19.0

          4-19

          246

          180

          40

          11/2

          190

          155

          114.3

          73

          20.6

          4-22.5

          283

          200

          50

          2

          216

          165

          127.0

          92

          22.4

          8-19

          330

          220

          65

          21/2

          241

          190

          149.4

          105

          25.4

          8-22.5

          368

          240

          80

          3

          283

          210

          168.1

          127

          28.4

          8-22.5

          394

          280

          100

          4

          305

          254

          200.2

          157

          31.8

          8-22.5

          473

          300

          125

          5

          381

          279

          235.0

          186

          35.0

          8-22.5

          660

          350

          150

          6

          403

          318

          269.7

          216

          36.6

          12-22.5

          711

          400

          200

          8

          419

          381

          330.2

          270

          41.2

          12-25.4

          813

          450

          250

          10

          457

          444

          387.4

          324

          47.8

          16-28.5

          1003

          500

          300

          12

          502

          521

          450.8

          381

          50.8

          16-32

          1137

          550

          350

          14

          762

          584

          514.4

          413

          54.0

          20-32

          1489

          600

          400

          16

          838

          648

          571.5

          470

          57.2

          20-35

          1580

          650

          450

          18

          914

          711

          628.7

          533

          60.5

          24-35

          2017

          700

          500

          20

          991

          775

          685.8

          584

          63.5

          24-35

          2228

          700

          600

          24

          1143

          914

          812.8

          692

          70.0

          24-41

          2650

          750

          650

          26

          1245

          867

          803.1

          736 6

          90.0

          32-35

          3219

          800

          700

          28

          1346

          921

          857.3

          787.4

          90.0

          36-35

          3378

          850

          750

          30

          1397

          991

          902.8

          844.6

          93.7

          36-38

          3530

          900

          800

          32

          1524

          1054

          978

          902

          103

          32-41.2

          3708

          1000

          900

          36

          1727.2

          1171.5

          1089.2

          1010

          103

          32-44.5

          3924

          1100

          1000

          40

          -

          1273

          1190.8

          1115

          115.8

          40-4.5

          4318

          1100

          1050

          42

          -

          1333.5

          1244.6

          1168.4

          119

          36-47.8

          -

          1100

          1200

          48

          -

          1511.3

          1416

          1327.2

          128.5

          40-50.8

          -

          1100

           

          Size Main Dimensions

          DN

          600Lb͹淨mRF

          mm

          in

          L

          D

          D1

          D2

          b

          n-d

          H

          Do

          15

          1/2

          165

          95

          66.5

          35

          14.5

          4-16

          169

          160

          20

          3/4

          190

          117

          82.5

          43

          16

          4-19

          193

          180

          25

          1

          216

          124

          89.0

          51

          17.5

          4-19

          230

          200

          32

          11/4

          229

          133

          98.5

          63

          21

          4-19

          246

          220

          40

          11/2

          241

          156

          114.3

          73

          22.5

          4-22.5

          283

          240

          50

          2

          292

          165

          127.0

          92

          25.4

          8-19

          425

          250

          65

          21/2

          330

          190

          149.4

          105

          28.5

          8-22.5

          485

          280

          80

          3

          356

          210

          168.1

          127

          31.8

          8-22.5

          510

          300

          100

          4

          432

          273

          216.0

          157

          38.1

          8-25.4

          610

          350

          125

          5

          508

          330

          266.7

          186

          44.5

          8-28.5

          700

          400

          150

          6

          559

          356

          292.1

          216

          47.8

          12-28.5

          820

          450

          200

          8

          660

          419

          349.3

          270

          56

          12-32

          920

          500

          250

          10

          787

          508

          431.8

          324

          63.5

          16-35

          1080

          550

          300

          12

          838

          559

          489.0

          381

          67

          20-35

          1220

          600

          350

          14

          889

          603

          527.0

          413

          70

          20-38

          1473

          650

          400

          16

          991

          686

          603.3

          470

          76.5

          20-41

          1651

          700

          450

          18

          1092

          743

          654.0

          533

          83

          20-44.5

          1727

          750

          500

          20

          1194

          813

          723.9

          584

          89

          24-44.5

          2019

          800

          600

          24

          1397

          940

          838.2

          692

          102

          24-51

          2155

          850

          650

          26

          1447.8

          889

          806.5

          726.9

          111.3

          28-44.5

          2300

          850

          700

          28

          1549.4

          952.5

          863.6

          784.4

          115.8

          24-47.8

          450

          900

          750

          30

          1651

          1022.4

          927.1

          841.3

          125.5

          28-50.8

          2756

          950

          800

          32

          1778

          1085.9

          984.3

          895.4

          130

          28-53.8

          2812

          1000

          900

          36

          2028.8

          1212.9

          1105

          1010

          146

          28-60.5

          -

          1100

          1000

          40

          -

          1320.8

          121 2.9

          1111.3

          158.8

          32-60.5

          -

          1100

          Size Main Dimensions

          DN

          900Lb RTJ

          mm

          in

          L

          D

          D1

          D2

          b

          n-d

          H

          Do

          50

          2

          371

          216

          165.0

          95.3

          46.0

          8-25.4

          521

          300

          65

          21/2

          422

          244

          190.5

          108.0

          49.0

          8-28.5

          584

          350

          80

          3

          384

          241

          190.5

          123.8

          46.0

          8-25.4

          648

          350

          100

          4

          460

          292

          235.0

          149.2

          52.4

          8-32

          750

          400

          125

          5

          562

          349

          279.4

          181.0

          58.7

          8-35

          780

          400

          150

          6

          613

          381

          317.5

          211.1

          63.6

          12-32

          800

          500

          200

          8

          740

          470

          393.7

          269.9

          71.4

          12-38

          940

          600

          250

          10

          841

          546

          469.9

          323.9

          77.8

          16-38

          1130

          600

          300

          12

          968

          610

          533.4

          381.0

          87.2

          20-38

          1340

          650

          350

          14

          1038

          641

          558.8

          419.1

          97.0

          20-41

          1543

          700

          400

          16

          1140

          705

          616

          419.1

          97.0

          20-44

          1600

          750

          450

          18

          1232

          787

          685.8

          466.9

          111.6

          20-50

          1830

          800

          500

          20

          1334

          857

          749.3

          466.9

          116

          20-54

          2100

          850

          600

          24

          1568

          1041

          901.7

          523.7

          147.7

          20-66.5

          2610

          900

          1500Lb RTJ

          50

          2

          371

          216

          165.1

          95.3

          46.0

          8-25.4

          614

          300

          65

          21/2

          422

          244

          190.5

          108.0

          49.0

          8-28.5

          705

          350

          80

          3

          473

          267

          203.2

          136.5

          557

          8-32

          705

          400

          100

          4

          549

          311

          241.3

          161.9

          61.8

          8-35

          927

          400

          125

          5

          676

          375

          292.1

          193.7

          81.1

          8-41

          1120

          500

          150

          6

          711

          394

          317.5

          211.1

          92.1

          12-38

          1191

          600

          200

          8

          841.5

          483

          393 7

          269.9

          103.0

          12-44.5

          1524

          650

          250

          10

          1000

          584

          482.6

          323.9

          119.1

          12-51

          1854

          700

          300

          12

          1146

          673

          571.5

          381.0

          138.2

          16-54

          2184

          700

          350

          14

          1276

          749

          635.0

          419.1

          149.2

          16-60.5

          2216

          800

          400

          16

          1406

          825.5

          704.9

          419.1

          154

          16-66.5

          2210

          800

          450

          18

          1559

          914

          774.7

          466.9

          172

          16-73


          850

          500

          20

          1686

          984

          832

          466.9

          186

          16-79


          900

          600

          24

          1971

          1168

          990.6

          523.7

          211

          16-92


          950

          2500Lb RTJ

          50

          2

          454

          235

          171.5

          101.6

          58.7

          8-28.5

          523

          350

          65

          21/2

          514

          267

          196.9

          111.1

          66.7

          8-32

          631

          350

          80

          3

          584

          305

          228.6

          127.0

          76.1

          8-35

          735

          400

          100

          4

          683

          356

          273.0

          157.2

          87.3

          8-41

          891

          500

          125

          5

          806

          419

          323.9

          190.5

          104 6

          8-48

          1047

          650

          150

          6

          927

          483

          368.3

          228.6

          120.7

          8-54

          1144

          700

          200

          8

          1038

          552

          438.2

          279.4

          141.3

          12-54

          1392

          700

          250

          10

          1292

          673

          539.8

          342.9

          182.6

          12-66.5

          1614

          800

          300

          12

          1444

          762

          619.3

          371.3

          192

          12-73

          1900

          850


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