Bolted Bonnet OS&Y Gate Valve
Products Design Features
Products design features
• Stellited seating surface
• Low emission control
• Flexible wedge
• Full guiding
• Absolute bonnet joint leak proof
• Optional by-pass design, Y Style Globe Valve, Check Valve.
Products Range
Size: 2”-24”
Rating: ANSI 600lb-2500lb
Body material: Carbon steel , Chromium Moly Alloy steel
Trim: Per API 600
Operation: Handwheel, Gear, Motor actuator
Flanged ends cast steel gate valve are used to cut or connect the pipe media under nominal pressure between PN1.6-42.0MPa(Cass150~2500)working temperatures ≤ 600in oil industry chemical industry fossil-fired power plants.
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.
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-jointed bonnet outside stem yoke structure |
| Driving manner | Hand-operated,Gear-operated and Electric-driving |
| Design standard | GB/T 12234 |
| Face to face | GB/T12221 |
| Flanged ends | GB/T9113、JB/T 79 HG20592 |
| Test & inspection | GB/T13927、JB/T9092 |
Note: The sizes of valve connecting flange and butt-welding terminas can be designed according to customer's requirement.
Major Parts Material Form
| No. | Part name | Material |
| 1 | Body | WCB、WC1、WC6、WC9、C5
CF8、CFM、CF8C、CF3、CF3M |
| 2 | Gate disc | WCB、WC1、WC6、WC9、C5
CF8、CF8M、CF8C、CF3、CF3M |
| 3 | Seat | A105、304、1Cr5Mo、12Cr1MoV |
| 4 | Stem | 1Cr13、2Cr13、12Cr18Ni9
06Cr18Ni12Mo2Ti、20Cr1Mo1V、25Cr2MoV |
| 5 | Stud | 35CrMoA、06Cr19Ni10
06Cr17Ni12Mo2、25Cr2MoV |
| 6 | Six angle nuts | 45、35CrMoA、25Cr2MoV、06Cr19Ni10、0Cr17Ni12Mo2 |
| 7 | Gasket | Graphite &stainless steel |
| 8 | Back seat | 12Cr1320Cr13.12Cr18Ni8
06Cr18Ni12Mo2Ti20Cr1Mo1V、25Cr2MoV |
| 9 | Bonnet | WCB.WC1WC6.WC.C5 CF8CF8MCF8CCF3CF3M |
| 10 | Packing | Graphite |
| 11 | Packing
press-sleeve |
1Cr132Cr13
12Cr18Ni906Cr18Ni12Mo2Ti
|
| 12 | Packing gland | WCB
CF8CF8MCF8CCF3CF3M |
| 13 | Valve stem nut | Copper alloy
|
| 14 | Handwheel | KTH350-10 QT400-15 |
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