API 6D Monogram Licensed: No. 6D-1832
CE PED 2014/68/EU Module H: NB 2195
Oxy Oman Approved AML: OMN-QAC-862-002
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API 602 COMPLIANTCLASS 800 / 1500 / 2500FORGED ALLOY BODYAPI 624 LOW EMISSION

Forged Steel Gate Valve

Heavy-duty compact forged gate valves manufactured from high-integrity forged alloy steel billets. Designed to API 602 and ASME B16.34 for high-pressure power plant steam drains, chemical injection, and sour hydrocarbon utilities with outside screw and yoke (OS&Y) rising stems.

Size Range NPS 1/2" to 2" (DN 15 to 50)
Pressure Class Class 800, 1500, 2500 (PN 130 to 420)
Bonnet Connection Bolted Bonnet / Welded Seal
End Connections Socket Weld (SW) / NPT / Flanged
TSV Class 300 High-Pressure Bolted Bonnet Forged and Cast Gate Valve Assembly
MODEL FAMILY TSV-FSGV-API602
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Design Criteria & Manufacturing Specifications

Manufactured strictly to international engineering codes with 100% factory pressure testing, full EN 10204 3.1 / 3.2 material traceability, and accredited third-party witness support.

Engineering Parameter Applicable Codes, Standards & Design Criteria
Manufacturing Standard API 602, BS 5352, ASME B16.34
Pressure-Temperature Rating ASME B16.34 Standard Class & Limited Class 800/1500/2500
Forged Material Grades ASTM A105N, A182 F316/F316L, A182 F11, F22, F51 Duplex
Wedge Structure Solid forged wedge with precision ground guide ribs
Stem Design Single-piece forged T-head stem with integral backseat shoulder
Packing System Die-formed flexible graphite with braided carbon anti-extrusion rings

Forged Steel Gate Valve Standard & Engineered Models

TSV manufactures an engineered lineup of Forged Steel Gate Valve configurations for global oil & gas transmission pipelines, refinery manifolds, power plants, and severe industrial processes. Each unit undergoes 100% hydrostatic and pneumatic factory acceptance testing before dispatch.

API 602 Bolted Bonnet Forged Steel Gate Valve
API 602 CLASS 800 / 1500

API 602 Bolted Bonnet Forged Steel Gate Valve

Compact forged carbon and stainless body with outside screw and yoke (OS&Y), spiral wound gasket, and hardened 13Cr/Stellite wedge for high pressure auxiliary lines.

Size RangeNPS 1/2" to 2" (DN 15 - 50)
Pressure ClassClass 800, 1500, 2500
Body MaterialASTM A105 / A182 F316 / F11 / F22
End TypesSocket Weld (SW), Threaded NPT, Flanged RF
Stem PackingFlexible Graphite with Inconel Wire Reinforcement
Welded Bonnet Fully Sealed Forged Gate Valve
WELDED BONNET ZERO FUGITIVE LEAK

Welded Bonnet Fully Sealed Forged Gate Valve

Hermetically seal-welded body-to-bonnet joint engineered for hazardous, toxic fluids, lethal gas lines, and high-vibration power piping.

Size RangeNPS 1/2" to 2" (DN 15 - 50)
Pressure ClassClass 800 to 2500
Body MaterialASTM A105 / A182 F316L / F51
Joint TypeFull Penetration Hermetic Seal Weld
TestingAPI 598 Hydrostatic Shell & Seat High Pressure
TSV 1 Inch Class 300 Integral Flanged Forged Steel Gate Valve ASME B16.5 RF
INTEGRAL FLANGE ASME B16.5 RF

Integral Flanged Forged Steel Gate Valve

One-piece forged body with integral flanges eliminating welded neck weaknesses, designed for offshore skid piping and severe thermal cycling.

Size RangeNPS 1/2" to 2" (DN 15 - 50)
Pressure ClassClass 150, 300, 600, 1500
Body MaterialASTM A182 F316 / F304 / A105N
Flange FinishSerrated Concentric / Spiral (125-250 Ra)
Design StandardAPI 602, ASME B16.34, ISO 15761

High-Integrity Forged Body Metallurgy & Pressure-Temperature Endurance

Dense ASTM A105 / F316 forged grain structure eliminates porosity risks for severe high-pressure refinery utility manifolds.

01

100% Hydrostatic Acceptance

Every valve is pressure-tested per API 598 / API 6D Rate A with zero allowable bubble leakage prior to factory crating.

02

EN 10204 3.1 Certified

Certified Mill Test Reports (MTR) with optical emission spectrometer chemical composition and mechanical impact values.

03

Global OXY Approved Supplier

Audited and approved on the global master vendor list (#24) of Occidental Petroleum for severe upstream duties.

Explore All 4 Gate Valve Sub-Categories

1:1 aligned with TSV factory catalog. Navigate to specialized casting, forged steel, slurry knife gate, or power station pressure-seal configurations.

Casting Gate Valve

API 600 heavy-wall bolted bonnet cast steel (WCB, LCC, WC6) flexible wedge gate for refinery manifolds.

API 600 Heavy Wall View Casting Gate Valve →

Forged Steel Gate Valve

API 602 compact forged alloy (A105, F316, F11) for severe high-pressure auxiliary vents, drains, and skids.

Current Series View Page Top ↑

Knife Gate Valve

MSS SP-81 beveled stainless blade shearing through abrasive slurry, mineral tailings, and pulp lines.

Slurry & Mining View Knife Gate Valve →

Self Sealing Gate Valve

Pressure-seal flexible graphite ring tightening under supercritical steam line pressures for power plants.

Superheated Steam View Self Sealing Gate Valve →

Request Engineering Submittal & Commercial Quotation

Connect directly with our Yongjia engineering technical sales team. Receive technical engineering datasheets, CAD dimensional GA drawings, and quotation within 24 hours.

Strict Confidentiality · EN 10204 3.1 Traceability Guaranteed · Direct Yongjia Factory Response