Casted & Forged Gate Valves
Heavy-duty full-bore isolation valves engineered to API 600 (Casted) and API 602 (Forged Steel). Featuring outside screw & yoke (OS&Y), flexible wedge design, Stellite hard-faced renewable seats, and bolted or pressure-seal bonnets rated from ASME Class 150 up to Class 2500.
Precision Engineered Casted & Forged Gate Valves for Full-Bore Pipeline Isolation
ENGIPRO SOLUTIONS LLP manufactures premium-grade Casted Gate Valves (API 600 / ASME B16.34) and Forged Steel Gate Valves (API 602 / ISO 15761 / BS 5352) engineered for positive bidirectional shut-off in high-pressure, severe-temperature process services. Designed with outside screw and yoke (OS&Y), rising stem, and flexible wedge mechanics, our gate valves ensure minimal flow resistance and straight-through unrestricted waterway.
Our Casted Gate Valves (available from 2" to 48") feature precision cast bodies in ASTM A216 WCB, A352 LCB/LCC, and austenitic stainless steels, fitted with renewable Stellite hard-faced seat rings and precision-guided wedges that prevent jamming under thermal pipeline stresses. Forged Gate Valves (available from 1/2" to 2" in Class 800/1500/2500) are forged from high-density carbon steel (A105), low-temp steel (LF2), alloy steels (F11, F22), and duplex alloys (F51/F53), equipped with bolted or pressure-seal bonnets.
Widely deployed across oil and gas refineries, petrochemical complexes, thermal power stations, high-pressure steam headers, and chemical utilities, every valve undergoes 100% hydrostatic shell and seat testing in compliance with API 598. Available with manual handwheels, impactor handwheels, enclosed bevel gear operators, and electric multi-turn actuation.
Special Features & Engineering Construction
Engineered to satisfy API 600, API 602, and ASME B16.34 requirements for dependable bidirectional isolation.
OS & Y Construction
Outside Screw & Yoke configuration isolates stem threads from process media, preventing corrosion, scale deposition, and thread galling.
Flexible Wedge Sealing
Precision ground flexible wedge compensates for pipeline thermal expansion and body distortion, preventing valve jamming in high-temperature service.
Renewable Stellite Trim
Hard-faced with Cobalt-base Stellite Gr. 6 (API Trim 5 / 8 / 12) offering superior resistance to erosion, wire drawing, galling, and cavitation.
Pressure Seal Bonnets
Offered in both Bolted Bonnet (low/medium pressure) and Pressure Seal Bonnet design where line pressure tightens the seal at Class 900 to 2500.
Integral Backseat Design
Precision back seat bushing relieves packing chamber pressure when fully open, allowing safe online repacking and containment security.
Multiple End Connections
Available in Flanged Raised Face (RF), Ring Type Joint (RTJ), Butt Weld (BW), Socket Weld (SW), and Screwed (NPT/BSPT) configurations.
NACE MR0175 Compliance
Engineered for sour service applications with controlled hardness, heat treatment, and metallurgy conforming strictly to NACE MR0175/ISO 15156.
Flexible Actuation
Standard manual handwheel with optional hammer-blow/impactor handwheels, bevel gearboxes, electric multi-turn, or pneumatic actuators.
Technical Specifications
Comparative design parameters and engineering standards for Casted (API 600) and Forged (API 602) Gate Valves.
Operational Standards & Engineering Details
| Design Standards |
Casted Gate Valves: API 600, ASME B16.34, BS 1414, ISO 10434 Forged Gate Valves: API 602, ISO 15761, BS 5352, ASME B16.34 |
| Special Construction Features | OS & Y Construction • Renewable Stellite Hardfaced Seat Rings • Bolted Bonnet • Welded Bonnet • Pressure Seal Welded Bonnet on request for High Pressure Class 900 to 2500 • Flexible Wedge / Solid Wedge • Integral Backseat Bushing |
| End Flanges & Connections |
Flanged Raised Face (RF) • Ring Type Joint (RTJ) as per ASME B16.5 & B16.47 Screwed End (NPT / BSPT) • Socket Weld End (ASME B16.11) • Butt Weld End (ASME B16.25) |
| Face to Face Dimensions | ASME B16.10, BS EN 558, ISO 5752 |
| Testing Standards | API 598, BS EN 12266-1, ISO 5208 (100% Hydrostatic & Pneumatic) |
| Size Range |
Casted Gate: 2" to 48" (DN 50 to DN 1200) Forged Gate: 1/2" to 2" (DN 15 to DN 50) |
| Pressure Rating |
Casted Gate: Class 150#, 300#, 600#, 900#, 1500#, 2500# Forged Gate: Class 800#, 1500#, 2500# |
| Operations | Manual Handwheel, Impactor Handwheel, Bevel Gearbox, Electric Multi-Turn Actuator, Pneumatic Cylinder |
| Shutoff Rating | Zero / Minimal Allowable Seating Leakage adhering strictly to API 598. |
Material Specification & Service Metallurgy
| CONSTRUCTION TYPE | BODY / BONNET MATERIALS | TRIM / WEDGE & SEAT SURFACING |
|---|---|---|
| Forged Carbon Steel | ASTM A105, A350 LF2 (Low Temp -46°C) | 13% Cr (Trim 1), Stellite 6 (Trim 5), 13% Cr + Stellite (Trim 8) |
| Forged Alloy Steel | ASTM A182 F11, F22, F91 (High Temp Steam) | Full Stellite Hardfaced (Trim 5 / Trim 16) |
| Forged Stainless Steel | ASTM A182 F304, F304L, F316, F316L, F321, F347 | 304 / 316 Stainless Steel, Stellite Trim 12 |
| Forged Duplex / Exotic | F51 (Duplex 2205), F53 (Super Duplex 2507), Inconel 625, Monel 400, Hastelloy C-276, Alloy 20 | Matching Exotic Alloys / Stellite Facing |
| Casted Carbon Steel | ASTM A216 WCB, WCC, ASTM A352 LCB, LCC | API Trim 8 (13Cr / HF), API Trim 5 (Full Stellite 6) |
| Casted Stainless & Alloy | ASTM A351 CF8, CF8M, CF3, CF3M, WC6, WC9 | SS 316 + Stellite (API Trim 10 / 12) |
Engineered for Critical High-Pressure Pipeline Infrastructure
Casted and forged gate valves deliver reliable, full-bore bidirectional isolation across extreme temperature and pressure environments.
Refineries & Distillation Units
Crude atmospheric and vacuum distillation columns, catalytic reforming units, hydrocrackers, and coker lines requiring full straight-through flow.
High-Pressure Thermal Power
Superheated main steam lines, boiler feed water headers, and turbine steam bypass networks utilizing alloy steel pressure-seal bonnet gate valves.
Petrochemical & Chemical Plants
Ethylene crackers, polymerization reactors, aromatic hydrocarbons, and toxic acid headers utilizing stainless steel and alloy 20 gate valves.
Oil & Gas Transmission Manifolds
Wellhead flow control, gathering lines, compressor stations, and metering skids requiring low-resistance full-bore passage and NACE MR0175 compliance.
Marine & Offshore Platforms
Topside manifold isolation, ballast water discharge, fuel bunkering systems, and offshore process skids utilizing Duplex and Super Duplex metallurgy.
Heavy Water & Desalination
High-capacity municipal water mains, industrial wastewater treatment headers, and desalination feed lines requiring zero head loss during normal flow.
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Need Custom Gate Valves or High-Pressure Motor Actuation?
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