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stop valve
stop valve

Detailed Product Description


Stop valve

Standard and regulation
Design and manufacture: ANSI B16.34; E101
Face to face/End to end: ANSI B16.34; E101
Pressure-temperature rating: ANSI B16.34; E101
Inspection and test: API598; E101

Applicable specification

Shell material

Applicable temperature ()

Applicable medium

ASTM A216 WCB

≤425

Steam; Water

ASTM A217 WCl

≤450

ASTM A217 WC6

≤550

ASTM A217 WC9

≤590

Material for main parts

Part name

Material designation

Body

WCB

WCl

WC6

WC9

Disc

25

15CrMOA

12CrlMOV

12CrlMOV

Bonnet

25

15CrMoA

12CrlMoV

12CrlMoV

Seat

25

15CrMoA

12CrlMoV

12CrlMoV

Stem

1Crl7Ni2
2Crl3

1Crl7Ni2
38CrMoAlA

SUH600
20CrlMo1VA

SUH600
20CrlMo1VA

Yoke

WCB

WCB

WCB

WCB

WCl

WC6

WC9

Sealing ring

F Soft steel

Packing

Enhanced flexible graphite

Stem nut

ZQAl9-4ZCuZn25A16Fe3Mn3A43gGr.D2

Butterfly spring

60Si2Mn

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