Gate Valve：
（1）Size：NPS 2～NPS 24、DN50～DN600
（2）Pressure：Class150～Class900、PN16～PN160
（3）Material：Carbon Steel, Stainless Steel, Alloy, Duplex Alloy
（4）Actuation：Handwheel. Gear Operator, Electric Operator, Pneumatic Operator
（5）Application: for petroleum, natural gas, petro-chemical industries.
1、Applicable Standard：
API 600，API 6D，GOST, ISO10434，API 603
2、Face to Face：
ASME B 16.10, GOST, GB, etc.
3、Flange Dimensions：
ASME B 16.5、ASME B 16.47、API 605、MSS SP-44, GOST, GB
4、Inspection and Test：
API 600、API 598、ISO 10434、API 6D、GOST, BS12569、MSS-SP-61,
5. Main Materials
A216 WCB、WCC; A217 WC6、WC9、C5、C12、C12A、CA15; A351 CF8、CF8M、CF3、CF3M、CF8C、 A352 LCB、LCC; 20Л,20ГЛ, 12Х18Н9ТЛ, 12Х18Н12М3ТЛ, etc.
6. Features：
1、Flexible wedge disc,Compact&Reasonable structure with good appearance.
2、Stainless steel or hard alloy overlay material, long working life time.
3、Flexible graphite packing material, reliable sealing performance, and smaller torque for easy operation.
Main parts and materials：
No. | Part | Material | ||||
WCB/Trim 1 | WCB/Trim 5 | WCB/Trim 8 | Stainless Steel | Stainless Steel | ||
1 | Body | ASTM A216 WCB | ASTM A351 CF8/ 12Х18Н9ТЛ | ASTM A351 CF8M/ 12Х18Н12М3ТЛ | ||
2 | Seat Ring | A105+13Cr
| A105+STL
| A105+STL
| ASTM A351 CF8+STL/ 12Х18Н9ТЛ+STL | ASTM A351 CF8M+STL/ 12Х18Н12М3ТЛ+STL |
3 | Disc | ASTM A216WCB+13Cr
| ASTM A216WCB+STL | ASTM A216WCB+13Cr
| ASTM A351 CF8+STL/ 12Х18Н9ТЛ+STL | ASTM A351 CF8M+STL/ 12Х18Н12М3ТЛ+STL |
4 | Stem | ASTM A182F6a | ASTM A182F6a | ASTM A182F6a | ASTM A182 F304/ F321 | ASTM A182 F316/ F321 |
5 | Gasket | Soft steel +flexible graphite or F304+ flexible graphite | 304+flexible graphite | 316+flexible graphite | ||
6 | Bonnet | ASTM A216 WCB | ASTM A351 CF8/ 12Х18Н9ТЛ | ASTM A351 CF8M/ 12Х18Н12М3ТЛ | ||
7 | Back seat | ASTM A182F6a | ASTM A351 CF8/ 12Х18Н9ТЛ | ASTM A351 CF8M/ 12Х18Н12М3ТЛ | ||
8 | Packing | flexible graphite | flexible graphite | flexible graphite | ||
9 | Gland bushing | ASTM A182F6a | ASTM A182 F304 | ASTM A182 F316 | ||
10 | Gland | ASTM A216 WCB | ASTM A351 CF8 | ASTM A351 CF8M | ||
11 | Stem nut | ASTM A439 D2 | ASTM A439 D2 | ASTM A439 D2 | ||
12 | Gland nut | Carbon steel | Carbon steel | Carbon steel | ||
13 | Handwheel | Iron | Iron | Iron | ||
14 | Locking nut | Carbon steel | Carbon steel | Carbon steel | ||
15 | screw | ASTM A193 B7 | ASTM A193B7 | ASTM A193B7 | ||
16 | Oil cup | Carbon steel | Carbon steel | Carbon steel | ||
17 | Eye bolt | ASTM A193 B7 | ASTM A193B8 | ASTM A193 B8M | ||
18 | Nut | ASTM A194 2H | ASTM A194 8 | ASTM A194 8M | ||
19 | Pin | ASTM A36 | 304SS | 316SS | ||
20 | Split pin | ASTM A36 | 304SS | 316SS | ||
21 | Stud | ASTM A193 B7 | ASTM A193B8 | ASTM A193 B8M | ||
22 | Nut | ASTM A194 2H | ASTM A194 8 | ASTM A194 8M | ||
Note: Alternative materials for valve parts can be provided according to customer’s inquiry.
