Long cycle life bellows (3000 cycles) in Gr. 321 (stainless) or Inconel. Designed and successfully tested in high pressure/temperature conditions.
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● Long cycle life bellows (3000 cycles) in Gr. 321 (stainless) or Inconel. Designed and successfully tested in high pressure/temperature conditions.
● Two-part bellows.
● Secondary stem seals: a) Backseat in open position; b) Graphite packing.
● Low torque due to: a) Non-rotating stem prevents torsion of bellows; b) Stem nut thrust bearings; c) Central lubrication.
● Bellows monitoring port (optional): A plug can be connected to the space above the bellows to monitor performance.
● Forged for higher safety: Increased toughness, strength and fatigue resistance.
● Guided disc: Seat and disc hard faced with alloy, ground and lapped.
Design Features
Design standard as per: API 602
Generally, lift is just 1/4 of the valve seat port, ensuring a short Opening/closing time.
Only one sealing face exists on the valve body and disc.
The valve is designed as a back seat sealing structure.
Use flexible and woven graphite collaboration type packing.
Product Range
Body material: stainless steel, forged steel, alloy steel
Nominal diameter: 1/2″～2 1/2″
Pressure range:Class150～2500（PN10~PN420）
End connection: RF
Working temperature:-29℃～560℃
Operation: Handwheel, Gear Box, Electric Actuator, etc.
| Brand | 3D |
| Valve Type | SW End Forged Steel Globe Valve |
| Valve Material | A105, stainless steel, special alloy, etc |
| Valve Test | 100% quantity tested before delivery |
| Valve Guarantee | 18 months from the date of dispatch ex works, or 12 months from date of commodity installation. |
| Valve Painting | Customer request |
| Valve Package | Wooden case |
| MOQ | 50 pcs |
| Valve Certificate | API 6D/CE/ISO9001/ISO14001 |
| Delivery Detail | Shipped in 4 or 6 weeks after payment |
| Port | SHANGHAI |
| Payment Terms | L/C,D/A,D/P,T/T |
| Certificate Offered | Packing List，Commercial Invoice，Test Reports and Material Certificates，Certificate of quality and quantity, Seller’s Certificate of Guarantee |