Industry 6" 150LB Cast Steel BS1873 RF Flange Globe Valve

Meet the backbone of industrial piping systems: our BS1873 Flange Globe Valve. Engineered to rigorous British Standard BS1873, this valve delivers uncompromising performance in high-pressure, high-temperature environments across oil & gas, power generation, chemical processing, and marine applications. Featuring robust carbon steel (WCB) or alloy steel construction, flanged ASME/EN connections, and precision-engineered internals, it ensures leak-tight shutoff, precise throttling control, and decades of reliable service.

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Product Details

BS1873 Flange Globe Valve: Heavy-Duty Industrial Workhorse for Extreme Service

Uncompromised Performance Under Pressure Engineered to rigorous British Standard BS1873, this industrial-grade flange globe valve delivers fail-safe flow control in the world’s most demanding environments. Designed for critical applications where leaks, corrosion, or throttling failures are unacceptable, it combines battle-tested materials, precision engineering, and certified safety for steam, hydrocarbons, and aggressive media up to 593°C (1,100°F) and Class 2500 (PN420).

Engineered for Industrial Brutality

Robust Construction:

Body Materials: ASTM A216 WCB (Carbon Steel) / ASTM A217 WC6/WC9 (Chrome-Moly Alloy) / ASTM A351 CF8M (316SS)

Pressure Boundary: Rated for ASME Class 150 to Class 2500 (PN16-PN420), with Pressure Seal Bonnets above Class 600

Stem & Trim: 13Cr Martensitic Stainless Steel (A182 F6a) / Stellite 6 Hardfaced Seats / Anti-Blowout Stem Design

Technical Specifications: BS1873 Flange Globe Valve

(Fully Compliant with British Standard 1873)

Parameter	Specification
Design Standard	BS 1873
Body Material	Carbon Steel (ASTM A216 WCB/WCC) / Alloy Steel (ASTM A217 WC6/WC9) / Stainless Steel (A351 CF8/CF8M)
Pressure Rating	Class 150 to Class 2500 (ASME) / PN16 to PN420 (EN)
Temperature Range	-29°C to 425°C (WCB) / -46°C to 593°C (Alloy) / -196°C to 700°C (SS)
Valve Size (DN)	DN 15 to DN 600 (½" to 24")
End Connection	Flanged (ASME B16.5 RF/FF, EN 1092-1 Type 01/02/05)
Face-to-Face	ASME B16.10 / EN 558-1 Series 1
Seat & Disc	13% Cr Steel (Std.) / Stellite 6 (Hardfaced) / SS316 (Corrosion Resistant)
Stem Material	A182 F6a (13Cr) / A182 F304/F316 (SS) / A182 F91 (High-Temp Alloy)
Bonnet Type	Bolted Bonnet (Std.) / Pressure Seal (Class 600+)
Packing	Flexible Graphite (Std.) / PTFE (Cryogenic) / Fire-Safe Graphite (API 607)
Gear Operator	Optional: Bevel Gear (90:1 Ratio) for Torque Reduction >80%
Leakage Class	Class IV (Std. per BS EN 12266-1) / Class VI (Soft Seat Option)
Fire Safe	API 607 / ISO 10497 Certified (Optional)
Testing Standard	API 598 / EN 12266-1 (Shell Test: 1.5x PN; Seat Test: 1.1x PN)

Intelligent Design Features:

Bolted Bonnet: Enables in-field maintenance without full system shutdown

Bevel Gear Operation: Reduces operating torque by 90% (1:90 ratio) for large-scale valves (DN150+)

Fire-Safe Compliance: Optional API 607/ISO 10497 certification with graphite-metal sealing

Backseat Function: Live packing replacement capability during operation

Precision Where It Matters

Superior Throttling: Linear/equal percentage flow characteristics for ±1% accuracy

Zero-Leakage Shutoff: EN 12266-1 Class VI sealing with elastomeric seats (optional)

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