Needle Valve, 1/4 in NPT, 15,000 psi, Sour Service, 316SS Body
1/4 in NPT needle valve, 15,000 psi sour-service, 316SS body. HP small-bore instrumentation isolation for HPHT installations.
Key features
- Valve Type: Instrumentation
- Nominal Size: 1/4 in
- Working Pressure: 15000 psi
- End Connection (Inlet): 1/4 in NPT Female
- Service Class: Sour (NACE MR0175)
- Valve Type
- Instrumentation
- Nominal Size
- 1/4 in
- Working Pressure
- 15000 psi
- Pressure Class
- 15K
- End Connection (Inlet)
- 1/4 in NPT Female
- Service Class
- Sour (NACE MR0175)
Product description
The Needle Valve, 1/4 in NPT, 15,000 psi, Sour Service, 316SS Body is a small-bore instrumentation valve, 1/4 in, 1/4 in NPT Female, rated for 15,000 psi. NACE MR0175 / ISO 15156 sour-service compliant.
Needle valve design — a tapered stem seats into a precision-machined orifice for fine throttling control or tight shut-off. Ideal for instrument isolation, sample-line control, and pressure-test connections. The slow-opening characteristic (multiple turns from closed to open) prevents pressure shock on sensitive instruments.
Construction
- Type: Instrumentation — Needle Valve
- Nominal size: 1/4 in
- Body material: 316 stainless steel — NACE MR0175 compliant
- Stem / trim: 316SS stem + 17-4PH spindle
- Seal / packing: Graphite + Inconel braided packing (sour)
- Inlet: 1/4 in NPT Female
- Outlet: 1/4 in NPT Female
Performance
Working pressure 15,000 psi. Hydrotested at 1.5× working pressure. Operating temperature -50°F to +250°F (-46°C to +121°C) per the data plate. NACE MR0175 sour-service compliant — material class EE.
Applications
- HPHT analyser tap-offs
- 15K capillary-line isolation
- High-pressure sample throttling
- HPHT instrumentation isolation
Compliance
- API 6A / ASME B16.34 instrumentation valve criteria
- 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) end connections (NPT / integral flanged / autoclave compression), (c) service class (standard vs sour, with H₂S partial pressure data for NACE compliance), (d) handle type (T-bar handle / handwheel / locking lever), (e) any required ATEX / IECEx certifications for hazardous-area mounting. Indus quotes ex-Dubai for stock items and ex-works OEM for build-to-order.
Companion products
Pair with matching pressure transmitters, gauges, and tubing kits for the instrumentation tap-off. Indus also supplies impulse-line tubing (1/2" / 1/4" / 3/8" 316SS), fittings (compression and weld), and matching mounting brackets on request.
Identification
| Parameter | Value |
|---|---|
| Valve Type | Instrumentation |
Dimensions
| Parameter | Value |
|---|---|
| Nominal Size | 1/4 in |
| End Connection (Inlet) | 1/4 in NPT Female |
| End Connection (Outlet) | 1/4 in NPT Female |
| Bore Type | Standard |
Performance
| Parameter | Value |
|---|---|
| Working Pressure | 15000 psi |
| Pressure Class | 15K |
| 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 | 316 stainless steel — NACE MR0175 compliant |
| Trim Material | 316SS stem + 17-4PH spindle |
| Seal / Elastomer Material | Graphite + Inconel braided packing (sour) |
Shipping & lead time
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Is this valve suitable for sour-service (H₂S) wells?▾
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What handle / operation type is supplied?▾
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Shipped worldwide from our Dubai warehouse. Transit, routes and documentation for 126 destinations