Product
Check Valve
Spring-poppet forged 4130 check valve for automatic one-way flow and backflow prevention on HP fracturing manifolds.
Quick answer
API 6A forged check valve, spring-poppet, 10–15k PSI — prevents backflow on fracturing manifolds.
Key facts
- Product type : Oilfield fitting
- Application : Fracturing / cementing / wellhead
- Country of origin : CN
High-pressure check valve uses a one-piece forged 4130 full-bore body and spring-poppet sealing for automatic one-way flow with low pressure drop and strong erosion resistance. Protects pipeline equipment on fracturing, cementing and well-testing manifolds.
Ends: FIG1502/2002 hammer union, thread or API 6A 6B/6BX flange. Sizes about 1"–4" full bore; working pressure 10,000–15,000 PSI; cracking pressure ~5–25 PSI customizable. NBR standard; FKM for NACE MR0175.
Poppet and seal assembly field-replaceable without removing the entire line. API Spec 6A; temperature class PU (−29°C to +121°C).
Specifications
| Body Material | 4130 alloy steel, one-piece forged |
|---|---|
| Nominal Size | 1"–4" full bore |
| Working Pressure | 10,000–15,000 PSI |
| End Connection | FIG hammer union / thread / API 6A flange |
| Inner Structure | Spring-poppet type |
| Cracking Pressure | 5–25 PSI, customizable |
| Standard | API Spec 6A |
Features
- Automatic one-way sealing, low ΔP
- Erosion-resistant for sand service
- Field-replaceable poppet and seals
- Multiple end connection styles
- NACE sour-service option