Manifold Valve -- 2-Way / 3-Way / 5-Way Instrument
Technical Datasheet -- Integral Instrument Manifold Valves for Transmitter Isolation
Document No.SV-DATA-MNV-001
RevisionA
DateMay 2026
ManufacturerSupreme Valves India, Ahmedabad, Gujarat, India
Instrument manifold valves for pressure, differential pressure, and level transmitter isolation, equalisation, and venting. Integral multiple needle or ball valves machined from a single SS316 or duplex stainless steel barstock forging. 2-way (direct mount isolator), 3-way (equalising), and 5-way (differential pressure transmitter manifold) configurations. NACE MR0175 sour service standard. Compact direct-mount design eliminates tubing and brackets. Colour-coded handles by function. API 602 / ASME B16.34 / NACE MR0175 compliant.
Technical Specifications
| Parameter | Specification |
|---|
| Product Type | Instrument Manifold Valves |
| Category | Multi-Port Valves |
| Size Range | 1/4" to 1/2" (DN8 to DN15) -- process connection: 1/2" NPT female typical; instrument connection: 1/4" or 1/2" NPT female typical |
| Pressure Rating | Up to 10,000 psi (689 bar) -- standard: 6,000 psi (414 bar) |
| Process Connection | Threaded NPT / BSP / metric (1/2" typical), Flanged RF (small size), Socket weld, Butt weld, Tube fitting compression (1/4" to 1/2" OD) |
| Instrument Connection | Threaded NPT / BSP / metric (1/4" or 1/2" typical), Tube fitting compression (1/4" to 1/2" OD) |
| Body Material | ASTM A182 F316 (SS316 forged barstock) / ASTM A105 (carbon steel forged barstock) / ASTM B564 UNS N04400 (Monel) / Duplex SS ASTM A182 F51 / F53 |
| Valve Trim | SS316 precision needle with Stellite 6 tip (needle valves) / SS316 ball with ENP or chrome plating (ball valves) / PTFE/RPTFE or graphite packing |
| Seat Material | SS316 integral seat with Stellite 6 overlay (needle) / PTFE/RPTFE seat (ball) |
| Configuration | 2-way: 1 process + 1 instrument (direct mount isolator) / 3-way: 1 process + 2 instruments or 1 process + 1 instrument + 1 vent (equalising) / 5-way: 2 process (H/L) + 2 instrument + 1 vent (differential pressure transmitter manifold) |
| Leakage Class | API 598 / EN 12266-1 Class A -- zero visible leakage for all needle and ball valves at rated pressure |
| Temperature Range | -50 deg C to +200 deg C (PTFE packing) -- up to +540 deg C (graphite packing, SS316 body) |
Materials of Construction
| Component | Material |
|---|
| Stainless Steel | ASTM A182 F316 (SS316) forged barstock body, needle, ball, and seat (standard instrument service) |
| Carbon Steel | ASTM A105 forged barstock body (standard industrial, non-corrosive) |
| Nickel Alloy | ASTM B564 UNS N04400 (Monel) body and trim (seawater / reducing acid service) |
| Duplex Stainless Steel | ASTM A182 F51 / F53 (duplex SS) body and trim (sour gas / chloride service per NACE MR0175) |
Testing & Inspection
| Test | Requirement |
|---|
| Testing | Hydrostatic shell test 1.5 x WP per API 598 / EN 12266-1; Seat leakage test per API 598 / EN 12266-1; Functional test -- full stroke, torque; Material certificates per EN 10204 3.1 |
| Certification | ISO 9001:2015 QMS, EN 10204 3.1 material certificates, hydrostatic and seat test reports |
Applicable Standards
| Standard | Description |
|---|
| Design Standard | API 602 Compact Steel Gate/Globe/Check Valves, ASME B16.34, NACE MR0175 (standard for sour service) |
Notes
- Manifold configuration (2-way / 3-way / 5-way), valve type (needle / ball / mixed), process connection, and instrument connection must be specified by the purchaser.
- For oxygen service (> 21% O2), all components must be degreased and cleaned per ASTM G93 Level 300; PTFE packing required.
- For sour gas service (H2S > 50 ppm), duplex stainless steel (ASTM A182 F51/F53) body and trim per NACE MR0175 is strongly recommended.
- Mount manifold directly to transmitter or process connection without additional unsupported tubing to prevent vibration fatigue.
- All valves are manufactured by Supreme Valves India as per our standard specifications.
