Swing Check Valve, Tee Body, 3 in × 150# RF, 285 psi, Sour Service
3 in × 150# RF swing check, tee body, 285 psi sour-service. Low-pressure utility check for sour-gas vent / drain headers.
Key features
- Valve Type: Check — Swing
- Nominal Size: 3 in
- Working Pressure: 285 psi
- End Connection (Inlet): 3 in 150# ANSI Raised-Face Flange
- Service Class: Sour (NACE MR0175)
- Valve Type
- Check — Swing
- Nominal Size
- 3 in
- Working Pressure
- 285 psi
- Pressure Class
- ANSI 150
- End Connection (Inlet)
- 3 in 150# ANSI Raised-Face Flange
- Service Class
- Sour (NACE MR0175)
Product description
The Swing Check Valve, Tee Body, 3 in × 150# RF, 285 psi, Sour Service is a swing te check valve rated for 285 psi working pressure (ANSI 150 class) with 3 in 150# ANSI Raised-Face Flange inlet and 3 in 150# ANSI Raised-Face Flange outlet. NACE MR0175 / ISO 15156 sour-service compliant.
Tee-body swing-disc design — one inlet leg and a perpendicular outlet leg, with a hinged disc on the inlet path. Used at frac iron junctions where flow combines into a manifold trunk. The tee body absorbs reaction loads cleanly, and the disc seats on the inlet face when reverse flow occurs in the trunk.
Construction
- Type: Check — Swing — Swing TE
- Nominal size: 3 in
- Bore: Full Port
- Body material: Cast WCB carbon steel — NACE MR0175 compliant
- Trim (disc/dart + seat): 316SS disc + 316SS seats
- Seal / elastomer: RPTFE seats + Viton (FKM) O-rings
- Inlet: 3 in 150# ANSI Raised-Face Flange
- Outlet: 3 in 150# ANSI Raised-Face Flange
Performance
Working pressure 285 psi. Hydrotested at 1.5× working pressure (shell test); seat-tested per API 6D acceptance criteria. NACE MR0175 / ISO 15156 sour-service compliant — H₂S-rated trim and elastomers, material class EE.
Installation
Install with the flow arrow on the body matching line direction. For swing types, horizontal-with-cover-up is the preferred orientation; vertical-flow-up is also supported. Avoid vertical-flow-down installation (the disc fights gravity to close).
Applications
- Sour-gas vent headers
- Drain manifolds (sour)
- 150# utility process service
- Tank-farm ingress lines (sour)
Compliance
- API 6D N/A N/A
- Material class EE (API 6A chemistry / sour-service grading)
- NACE MR0175 / ISO 15156 (sour-service)
- Mill test reports per EN 10204 3.1 / 3.2
How to order
Confirm (a) line working pressure and pressure class, (b) inlet and outlet end-connection sizes / styles, (c) service class (standard vs sour), (d) installation orientation (especially for dart-type — vertical-flow-up only), and (e) any flow-velocity or noise constraints (over-spec'd swing checks can chatter at low flow). Indus quotes ex-Dubai for stock items and ex-works OEM for build-to-order items, with full mill test reports and pre-shipment hydrotest certificates.
Companion products
Pair with matched-pressure ball valves, plug valves, gate valves, and SSV/ESDs of the same end-connection family. For frac iron service trees, the 1502/602/206 Weco unions are the matched standard. For wellhead and Christmas tree service, the API 6A 5M/10M/15M flanged geometries pair check valves with master and wing gate valves.
Identification
| Parameter | Value |
|---|---|
| Valve Type | Check — Swing |
Dimensions
| Parameter | Value |
|---|---|
| Nominal Size | 3 in |
| End Connection (Inlet) | 3 in 150# ANSI Raised-Face Flange |
| End Connection (Outlet) | 3 in 150# ANSI Raised-Face Flange |
| Bore Type | Full Port |
Performance
| Parameter | Value |
|---|---|
| Working Pressure | 285 psi |
| Pressure Class | ANSI 150 |
| Service Class | Sour (NACE MR0175) |
Compliance
| Parameter | Value |
|---|---|
| API Specification | API 6D |
| PSL Class | N/A |
| PR Class | N/A |
| Material Class (API 6A) | EE |
Construction
| Parameter | Value |
|---|---|
| Body Material | Cast WCB carbon steel — NACE MR0175 compliant |
| Trim Material | 316SS disc + 316SS seats |
| Seal / Elastomer Material | RPTFE seats + Viton (FKM) O-rings |
Shipping & lead time
What is the working pressure rating?▾
What end connections does this valve use?▾
Is this valve suitable for sour-service (H₂S) wells?▾
How does the swing check operate?▾
What installation orientation is supported?▾
What materials are used for the body, trim, and seals?▾
What is the lead time?▾
What standards and certifications are supplied?▾
Shipped worldwide from our Dubai warehouse. Transit, routes and documentation for 126 destinations