Pressure Relief Valve, Spring-Loaded, 2 in × 602 M×F, 6,000 psi, Sour Service
2 in × 602 M×F spring-loaded PRV, 6,000 psi sour-service. 602 union — production-test iron over-pressure for sour wells.
Key features
- Valve Type: Pressure Relief
- Nominal Size: 2 in
- Working Pressure: 6000 psi
- End Connection (Inlet): 2 in 602 Male Weco Union
- Service Class: Sour (NACE MR0175)
- Valve Type
- Pressure Relief
- Nominal Size
- 2 in
- Working Pressure
- 6000 psi
- Pressure Class
- 5K
- End Connection (Inlet)
- 2 in 602 Male Weco Union
- Service Class
- Sour (NACE MR0175)
Product description
The Pressure Relief Valve, Spring-Loaded, 2 in × 602 M×F, 6,000 psi, Sour Service is a spring-loaded conventional pressure relief valve rated for 6,000 psi working pressure (5K class), 2 in 602 Male Weco Union. NACE MR0175 / ISO 15156 sour-service compliant.
Spring-loaded conventional relief design — line pressure acts directly on the disc; the spring sets the opening (set) pressure. When line pressure exceeds set, the disc lifts off the seat and discharges to atmosphere or to the relief header until line pressure drops below the reseat (blowdown) pressure. Simple, robust, and field-serviceable.
Set pressure is made-to-order. Specify the required set pressure on the RFQ — typical setpoints range from 50% to 100% of the body pressure rating. Indus calibrates and seals the valve at the spec'd setpoint with a witness-test certificate.
Construction
- Type: Pressure Relief — Spring-Loaded
- Nominal size: 2 in
- Body material: Forged AISI 4130 — NACE MR0175 compliant
- Trim (disc + seat + nozzle): 316SS disc + nozzle, NACE-compliant Inconel X-750 spring
- Seal / soft goods: PEEK back-up + HNBR primary seals
- Inlet: 2 in 602 Male Weco Union
- Outlet: 2 in 602 Female Weco Union
Performance
Working pressure 6,000 psi. Set pressure factory-calibrated and witness-tested per API 526 / ASME Section VIII Division 1 acceptance criteria. NACE MR0175 / ISO 15156 sour-service compliant — material class EE.
Applications
- Sour-well production-test PRV
- Well-test surface-tree safety
- 6K sour flow-back protection
- Production-iron sour PRV
Compliance
- API 526 (steel pressure relief valves) and / or ASME Section VIII Division 1
- NACE MR0175 / ISO 15156 (sour-service)
- Calibration and witness-test certificate at specified set pressure
- Mill test reports per EN 10204 3.1 / 3.2
How to order
Confirm (a) line operating pressure (typically 90% of set pressure), (b) required set pressure (the over-pressure protection threshold), (c) line fluid and temperature (affects orifice sizing per API 520), (d) discharge routing (atmosphere / relief header / closed flare), (e) service class (standard vs sour), (f) any required certifications (ASME UV stamp, API monogram, witness-test attendance). Indus quotes ex-works OEM with calibration and pre-shipment test certificates.
Companion products
Pair with a matched-rated isolation valve upstream (typically a manual gate or ball valve, locked-open) and a manual block valve on the discharge line for service / maintenance access. For relief headers handling H₂S, ensure the discharge piping is also NACE MR0175 compliant. Indus also supplies relief-system engineering services (orifice sizing per API 520, blowdown / over-pressure analysis) on request.
Identification
| Parameter | Value |
|---|---|
| Valve Type | Pressure Relief |
Dimensions
| Parameter | Value |
|---|---|
| Nominal Size | 2 in |
| End Connection (Inlet) | 2 in 602 Male Weco Union |
| End Connection (Outlet) | 2 in 602 Female Weco Union |
| Bore Type | Standard |
Performance
| Parameter | Value |
|---|---|
| Working Pressure | 6000 psi |
| Pressure Class | 5K |
| Service Class | Sour (NACE MR0175) |
Compliance
| Parameter | Value |
|---|---|
| API Specification | Other |
| PSL Class | N/A |
| PR Class | N/A |
| Material Class (API 6A) | EE |
Construction
| Parameter | Value |
|---|---|
| Body Material | Forged AISI 4130 — NACE MR0175 compliant |
| Trim Material | 316SS disc + nozzle, NACE-compliant Inconel X-750 spring |
| Seal / Elastomer Material | PEEK back-up + HNBR primary seals |
Shipping & lead time
What is the working pressure rating?▾
How is the set pressure configured?▾
What is the difference between spring-loaded and pilot-operated PRVs?▾
What end connections does this valve use?▾
Is this valve suitable for sour-service (H₂S) wells?▾
What standards does this PRV comply with?▾
How is this PRV sized for my line?▾
What is the lead time?▾
Shipped worldwide from our Dubai warehouse. Transit, routes and documentation for 126 destinations