Threaded/Welded Forged Steel Gate Valve
Products Design Features
The main structure features include:
1.Both design and manufacture are carried out strictly following GB/T12234AP600and AP1602. The products feature a reasonable structure. reliable seal, good performance and nice modeling.
2.Co hard alloy welded sealing surface, which is wearing resistant erosion proof, abrasion proof and long-lived.
3.The surface and the adjusting media of the valve shaft are nitrogenized so that it is erosion and abrasion resistant.
4.PN≥15.0MPa(Class900), the middle cavity usea a self-tightening sealing structure to have the sealing performance reinforced along with the pressure rise so as to ensure the sealing performance.
5.There is no backward sealing structure in the valve, so the sealing id reliable
6.The material of the filling and the flange size can be chosen and matched according to the applications and the requirements of the use’s. That can satisfies all kinds of working requirements.
Valve test and inspection:
• API 598 & ANSI B16.34
Applicable standards:
• BASIC DESIGN, ANSI B16.34
• SOCKET-WELD (S.W), ANSI B16.11
• SCREWED END (S.E), ANSI B1.20.1
• BUTT-WELD (B.W) ANSI B16.25
Standard material:
• A105.LF2.F5.F11.F22.F304. F304L.F316.F316L
Main Parameter Of The Products
| Serial models | (Hs、Ps)Z11H(Hs、Ps)Z11Y、(Ps)Z41H、(Ps)Z41Y、(Ps)Z441H、(Ps)Z441Y(Ps)Z541H(Ps)Z541Y(Ps)Z941H(Ps)Z941Y | |||
| Pressure grade range | PN1.6-42.0MPa(Class150-2500) | |||
| Drift diameter range | DN15-1000mm(NPS1-40) | |||
| Driving manner | Hand wheel driving | Gear driving and electric driving | ||
| Scope of application | Class150-300(PN1.6-4.0) | Class400-600(PN6.4-10.0) | Class900-2500(PN15.0-42.0) | NPS2-40(DN50-1000mm) |
| NPS1/2-24(DN15-600mm) | NPS1/2-12(DN15~300mm) | NPS1/2-10(DN15~250mm) | ||
Products Performance Specification
Technical Specification
| Structural formation | Bolt(Weld)-jointed bonnet outside stem yoke structure |
| Driving manner | Hand-operated |
| Design standard | API602.BS5352 |
| Face to face | ASME B1.20.1 |
| Flanged ends | ASME B16.11 |
| Test & inspection | API598 BS6755 |
Major Parts Material Form
| No. | Part name | Material |
| 1 | Body | ASTM A105ASTMA182-F11、F22F5、F9
ASTMA182-F304F316 F321F304LF316L |
| 2 | Seat | ASTM A105ASTMA182-F11.F22F5F9
ASTMA182-F304、F316.F321F304LF316L |
| 3 | Gate Disc | ASTM A105ASTMA182-F11F22 F5F9
ASTMA182-F304F316F321 F304LF316L |
| 4 | Stem | ASTM A182F68ASTMA182 F22ASTM A182-F304F316F321、F304LF316L |
| 5 | Gasket | Graphite&stainless steel |
| 6 | Bonnet | ASTM A105ASTMA182-F11F22F5F9
ASTMA182-F304F316F321F304LF316L |
| 7 | Bolt | ASTMA193-B7A193-B8A193-B16 |
| 8 | Packing | Graphite |
| 9 | Packing gland | ASTMA216-WCB ASTM A217 WC6 W C5C12 ASTMA351-CF8 CF8MCF8CCF3CF3M |
| 10 | Valve stem nut | Copper alloy |
| 11 | Hand wheel | ASTMA47-32510 ASTMA53660-40-18 |
