✧ Description
The core component of check valve is forged by stainless steel with advanced erosion and abrasion-resistant characteristics. The seals use secondary vulcanization resulting in ultimate sealing. We can provide top-entry check valves, in-line flapper check valves and dart check valves. Flappers check valves are mainly used in fluid or fluid solid mixture condition. Dart check valves are mainly used in gas or pure fluid with low viscosity condition.
Dart Check Valve requires minimal pressure to open. Elastomer seals are low cost and easy to service. Alignment insert helps reduce friction, improves concentricity and increases body life while providing a positive seal. Weep hole serves as a leak indicator and safety relief hole.
Dart Style Check Valve is a special non-return (one-way) valve designed as per to work under extremely high pressure and temperature in oilfield development facilities. Dart type Check Valve usually consists of valve body, seal rings, lock nut, spring, sealing gland, O-rings, and plunger. Dart Check Valves are considered reliable during various oilfield operations, such as cementing, acid stimulation, well kill works, hydraulic fracturing, well clean-up and solid management, etc.
✧ Feature
Elastomer seals are low cost and easy to service.
Low friction dart.
Dart requires minimal pressure to open.
Alignment insert helps reduce friction and improves concentricity.
Alignment insert increases dart and body life while providing a positive seal.
Weep hole serves as a leak indicator and safety relief hole.
✧ Specification
|
Nomal Size, in |
Working Pressure, psi |
End Connection |
Flow Condition |
|
2 |
15,000 |
Fig1502 M X F |
Standard |
|
3 |
15,000 |
Fig1502 F X M |
Standard |
