Technical Datasheet & Specifications
| Parameter | Specification |
|---|---|
| Product Name | Angle Type / Spring Loaded Safety Relief Valve |
| Description | Relief Valve for Oil & Gas, Petrochemical, Water Treatment. KSA/UAE export. API compliant. AHMEDABAD manufacturer. Request enquiry. |
| Parameter | Specification |
|---|---|
| Valve Type | Pressure Safety Valve (PSV) / Safety Relief Valve / Pressure Reducing Valve (PRV) |
| Size Range | DN15 (1/2") to DN300 (12") |
| Pressure Rating | PN16 / PN40 / Class 150# / Class 300# / Class 600# |
| End Connection | Flanged Raised Face (RF) per ASME B16.5 / EN 1092-1; Screwed BSP/NPT female |
| Face-to-Face | ASME B16.10 / API 526 (PSV) / Manufacturer Standard |
| Design Standard | ASME Sec VIII Div 1 / API 520 / 526 (Safety Valves); ASME B16.34 (PRV) |
| Testing Standard | API 527 (Seat Tightness of Safety Valves) / API 598 / IBR compliant |
| Seat Sealing | Metal-to-Metal with Stellite 6 overlay (hardfaced) / Resilient EPDM/PTFE soft seat |
| Overpressure / Blowdown | Safety Valves: Overpressure 10% max, Blowdown 7% max; PRVs: Pilot-operated or direct-acting |
| Part | Standard Material | Exotic/Special Alloys (On Request) |
|---|---|---|
| Body & Bonnet | Cast Steel ASTM A216 WCB / Forged Steel A105 / Cast Iron FG 260 / SS304 CF8 | SS316 CF8M, WC6, WC9, NAB |
| Nozzle / Disc | Hardened Stainless Steel AISI 410 / SS316 with Stellite 6 hardfacing (API Trim 5) | Stellite 6 solid nozzle & disc |
| Spring (Safety Valve) | Chrome-Vanadium Spring Steel (high temperature, epoxy coated) / SS316 | Inconel X-750 spring |
| Diaphragm (PRV) | Reinforced EPDM / Neoprene rubber with Nylon backing | Stainless Steel 316 bellows/diaphragm |
| Stem / Spindle | Stainless Steel ASTM A276 Type 410 / SS304 / SS316 | Monel K500, SS17-4PH |
| Adjusting Screw | Stainless Steel SS304 / High tensile Brass | Stainless Steel 316 |
| Bolting | Carbon Steel Studs A193 B7 & Nuts A194 2H | SS316 Studs and Nuts |
Conforms to API 526 for Safety Relief Valves; ASME B16.10 for PRVs. Inlet and outlet sizes conform to API 526 standards (e.g. 2H3, 3K4, 4P6). Large orifices ensure full relieving capacity matching ASME code. General arrangement drawings (GAD) with dimensions, spring set ranges, and capacity sizing calculations are provided.
| Test | Standard Reference | Acceptance Criteria |
|---|---|---|
| Body Hydrostatic Shell | API 598 / ASME VIII / IBR | 1.5 x Rated Pressure (60 bar for PN40 / WCB), 60s hold, zero visible leakage |
| Set Pressure (POP Test) | ASME VIII / API 520 / IBR | Set pressure verified on pop test bench, 3 consecutive pop tests within +/- 3% tolerance |
| Seat Tightness (Air) | API 527 | Verify bubble leakage at 90% of set pressure, bubble count complies with API 527 limits |
| Visual & Casting Check | MSS SP-55 | Casting visual check, thickness verify, check spring calibration and painting uniformity |
| Code/Standard | Description |
|---|---|
| ASME Sec VIII Div 1 | Boiler and Pressure Vessel Code -- Rules for Construction of Pressure Vessels |
| API 520 / 526 | Sizing, Selection, and Installation of Pressure-relieving Devices / Flanged PSVs |
| API 527 | Seat Tightness of Pressure Relief Valves (leakage standard) |
| IBR (Form III-C) | Indian Boiler Regulations (steam-service certifications and approvals) |
| Deliverable | Details / Status |
|---|---|
| Material Test Certificates | EN 10204 3.1 Mill Certificates with full chemical & mechanical heat traceability |
| ASME / IBR set certificate | Official set pressure and capacity certificate signed by QA director / IBR inspector |
| Pressure Test Reports | Hydrostatic shell test and API 527 seat bubble leakage reports signed by QC |
Supreme Enterprise
Industrial Valves & Engineering Solutions
4th Floor, Survey No. 235/A and 247/A, E/401,
Nr. Bhattha School, Gyaspur,
Ahmedabad, Gujarat 382405, India
Branch: Mehta House, Relief Road, Ahmedabad 380001
GST: 24AFAFS5839J1ZQ • IEC: AFAFS5839J
Email: info@supremevalves.in
Phone: +91 97732 78770
Web: www.supremevalves.in
The Angle Type / Spring Loaded Safety Relief Valve is designed, manufactured, and tested in accordance with ASME Sec VIII Div 1 / API 520 / 526 (Safety Valves); ASME B16.34 (PRV). 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 DN15 (1/2") to DN300 (12") with PN16 / PN40 / Class 150# / Class 300# / Class 600#. 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.