4th Floor, Survey No. 235/A and 247/A, E/401, Nr. Bhattha School, Gyaspur, Ahmedabad 382405, Gujarat, India
Branch Office: Mehta House, Relief Road, Ahmedabad 380001
Tel: +91 97732 78770 | Email: info@supremevalves.in | www.supremevalves.in
Technical Datasheet -- Precision Needle Valves for Instrument Isolation and Flow Control
High-pressure needle valves for instrument isolation, gauge root valves, process sampling systems, and hydraulic control circuits. Precision-machined tapered needle with Stellite-hardened tip provides fine flow control with high rangeability and bubble-tight metal-to-metal shutoff. Compact forged barstock body (SS316, carbon steel, Monel, or Titanium) with panel mount option. Multiple end connections: threaded NPT/BSP, socket weld, butt weld, tube compression, and flanged. API 602 / ASME B16.34 / NACE MR0175 compliant.
| Parameter | Specification |
|---|---|
| Product Type | Needle Valves |
| Category | Needle Valves |
| Size Range | 1/8" to 2" (DN6 to DN50) |
| Pressure Rating | Up to 10,000 psi (689 bar) -- standard: 6,000 psi (414 bar) |
| End Connections | Threaded NPT / BSP / metric (standard), Socket weld, Butt weld, Flanged RF (Class 150 / 300), Tube fittings (OD compression: 1/8" to 1/2" OD) |
| Body Material | ASTM A182 F316 (SS316 forged barstock) / ASTM A105 (carbon steel forged barstock) / ASTM B564 UNS N04400 (Monel) / ASTM B381 Gr. F2 (Titanium) |
| Needle / Stem Material | SS316 with Stellite 6 or chrome plating on tip / SS316 hardened tip |
| Seat Material | SS316 integral seat with Stellite 6 overlay / renewable SS316 + Stellite seat insert |
| Packing | PTFE V-ring (standard -29 to +200 deg C) / Graphite braided (high temp to +540 deg C) / PEEK (high temp +260 deg C) |
| Operation | Handwheel (standard) / Knurled thumbwheel (panel mount) / Pneumatic micro-actuator (automated) |
| Leakage Class | API 598 / EN 12266-1 Class A -- zero visible leakage (metal-to-metal precision ground seat) |
| Temperature Range | -29 deg C to +200 deg C (PTFE packing) -- up to +540 deg C (graphite packing, SS316 body) |
| Panel Mount | Round or square body design with panel mount nut and lock washer for instrument panel installation |
| Component | Material |
|---|---|
| Stainless Steel | ASTM A182 F316 (SS316) forged barstock body, needle, and seat (corrosive / standard instrument service) |
| Carbon Steel | ASTM A105 forged barstock body (standard industrial, non-corrosive) |
| Nickel Alloy | ASTM B564 UNS N04400 (Monel) body and needle (seawater / marine / reducing acid service) |
| Titanium | ASTM B381 Gr. F2 (Titanium) body and needle (chlorine / hypochlorite / oxidising acid service) |
| 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 |
| Standard | Description |
|---|---|
| Design Standard | API 602 Compact Steel Gate/Globe/Check Valves, ASME B16.34, NACE MR0175 (on request for sour service) |
The Needle Valve -- High Pressure Instrument SS316 is designed, manufactured, and tested in accordance with applicable API / ASME / BS / ISO international standards. Compliance documentation and Material Test Certificates (EN 10204 3.1) are provided with every order.
Standard construction is carbon steel, stainless steel (CF8 / CF8M), and special alloy grades. Alternative and upgraded grades -- Duplex, Super Duplex, Inconel, Monel, Hastelloy, and NACE MR0175 trims for sour service -- are available on request.
It is offered in a range of sizes as per the technical specification with standard ANSI / ASME pressure classes (PN ratings on request). End connections include flanged (RF / RTJ), butt-weld, socket-weld, and screwed ends as per specification.
Yes. Supreme Valves India is an established exporter of industrial valves to Saudi Arabia (KSA), the UAE, Qatar, Kuwait, Oman, Bahrain, and across the Gulf. We provide sea-worthy export packing, EN 10204 3.1 / 3.2 certification, certificate of origin, and support for SABER / SASO conformity on KSA shipments.
Every valve undergoes hydrostatic shell and seat testing per API 598 / ISO 5208. Documentation includes EN 10204 3.1 MTC (3.2 on request), NDT reports, and fire-safe (API 607) or NACE MR0175 certification where applicable. Third-party inspection by TÜV, SGS, Bureau Veritas, or Lloyd's Register can be arranged.
Order quantities are flexible -- from single units for stocked items to bulk volumes for project requirements. Lead time depends on size, material, and quantity; please contact our team with your specification for a firm delivery schedule and quotation.