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Tel: +91 97732 78770 | Email: info@supremevalves.in | www.supremevalves.in
Monoflange Process Instrument Isolation and Bleed Valve
This datasheet covers integral monoflange block and bleed needle valves in SS316 forged barstock for direct mounting between process flanges and instrument flanges, replacing traditional root valve assemblies.
| Parameter | Specification |
|---|---|
| Size Range | 1/2" to 1" process flange x 1/2" instrument connection |
| Pressure Rating | Class 150 to Class 1500 / PN16 to PN100 / 6,000 PSI |
| Body Material | SS316 forged barstock, one-piece monoflange body |
| Valve Configuration | One block needle valve + one bleed needle valve |
| Needle Tip | SS316 non-rotating Vee-point tip on both valves |
| Seat Material | Integral SS316, matched-lapped |
| Temperature Range | -73°C to +538°C (graphite packing) |
| Connections | Process: 1/2" to 1" flanged ASME B16.5 or RF/RTJ; Instrument: 1/2" NPT female |
| Mounting | Direct bolted between process nozzle flange and instrument flange |
| Handle | SS304 knurled handwheel standard |
| Features | Monoflange replaces root valve assembly, non-rotating tip, blow-out proof, flanged process connection |
| Component | Material |
|---|---|
| Body | SS316 forged barstock monoflange with integral process flange, valve chambers, and instrument connection |
| Needle | SS316 hardened non-rotating Vee-point tip on both block and bleed valves |
| Stem | SS316 anti-blow-out stem with ACME threads and thrust collar on both valves |
| Packing | PTFE V-rings (standard) or graphite braided (high temperature) |
| Gland Nut | SS316 hex gland nut |
| Bonnet | SS316 threaded or union bonnet |
| Flange Facing | Raised face (RF) or ring-type joint (RTJ) per ASME B16.5; flange finish 125-250 AARH |
| Studs / Nuts | B8M Class 2 studs with 8M heavy hex nuts for SS316 service |
| Test | Requirement |
|---|---|
| Test Standard | Hydrostatic 1.5x rated pressure per API 598 / MSS SP-99 |
| Certification | CE, PED, ISO 9001, NACE MR0175 on request |
| Standard | Description |
|---|---|
| Design Standard | ASME B16.34 / MSS SP-99 / ASME B16.5 flange dimensions |
The Integral Block & Bleed Monoflange Needle Valve -- 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.