Bellows Seal Valve

Bellows Seal Valve – Key Features & Advantages

  • Double-Layered Safety

    Primary Seal: Metal bellows (stainless steel, Inconel) welded to the stem and bonnet, ensuring zero fugitive emissions.
    Secondary Seal: Redundant graphite or elastomeric packing for fail-safe protection.

  • Maintenance-Free Operation

    No stem packing adjustments required, reducing downtime and lifecycle costs.
    Corrosion-resistant bellows withstand extreme temperatures (-200°C to +600°C) and pressure cycles.

  • Zero Environmental Leakage

    Critical for handling hydrogen, chlorine, ammonia, or cryogenic fluids.

  • Extended Service Life

    Bellows absorb stem movements, preventing wear from thermal expansion or vibration.

  • Clean Process Integrity

    Ideal for pharmaceuticals, semiconductors, and food-grade applications.

  • Bellows Seal Valve – Zero-Leakage Solution for Hazardous Media

    A bellows seal valve is a precision-engineered valve designed with a hermetically sealed metal bellows that isolates the stem from the process fluid. This eliminates traditional packing seals, providing unmatched leak prevention for toxic, volatile, or high-purity applications.

Bellows Seal Gate Valve

Features
Bellows Seal Type
Extended Bonnet
Outside screw and yoke
Rising stem and non-rising handwheel
Flexible wedge, fully guided
Manual operation standard, gear operator and actuation available
Butt weld end

Standards
Design & Manufacture: API 600, API 6D, ASME B16.34
Face to Face: API 6D, ASME B16.10, EN 558, DIN 3202, BS 2080
Connection End: ASME B16.5, ASME B16.25, EN 1092, EN 12627, JIS B2220
Test : API 600, API 6D, EN 12266
Sizes: 2″ – 12″ (DN 50 – DN 300)
Pressure Rating: Class 150 – Class 600
Valve Materials: WCB, LCB, WC6, WC9, C12, C5, CF8, CF8M etc.
Operation: Handwheel, Gear, Pneumatic, Hydraulic and Electric actuator

API Bellows Seal Globe Valve

Features
Bellows Seal Type
Extended Bonnet
Outside screw and yoke
Rising stem and non-rising handwheel
Manual operation standard, gear operator and actuation available
Butt-weld end or flange end

Standards
Design&Manufacture: BS 1873, ASME B16.34
Face to Face: ASME B16.10, EN 558, BS2080
Connection End: ASME B16.5, ASME B16.25, EN 1092
Test and Inspection: API 598, EN 12266, BS 6755
Sizes: 1/2″ – 12″  (DN12 – DN300)
Pressure Rating: Class150 – Class900
Body Materials : WCB, LCB, WC6, WC9, C12, C5, CF8, CF3, CF3M, CF8M etc.
Operation: Handwheel, Gear, Pneumatic, hydraulic and Electric actuator.

Bellows Seal Gate Valve Extended Bonnet

Features
Bellows Seal Type
Extended Bonnet
Outside screw and yoke
Rising stem and non-rising handwheel
Flexible wedge, fully guided
Manual operation standard, gear operator and actuation available
Flange end: raised face or ring type joint

Standards
Design & Manufacture: API 600, API 6D, ASME B16.34
Face to Face: API 6D, ASME B16.10, EN 558, DIN 3202, BS 2080
Connection End: ASME B16.5, ASME B16.25, EN 1092, EN 12627, JIS B2220
Test : API 600, API 6D, EN 12266
Sizes: 2″ – 12″ (DN 50 – DN 300)
Pressure Rating: Class 150 – Class 600 (PN 16 – PN 100)
Body Materials: WCB, LCB, WC6, WC9, C12, C5, CF8, CF8M etc.
Operation: Handwheel, Gear, Pneumatic, Hydraulic and Electric actuator

DIN Bellows Seal Globe Valve

Features:
Bellows Seal Type
Extended Bonnet
Outside screw and yoke
Rising stem and non-rising handwheel
Manual operation standard, gear operator and actuation available
Butt-weld end or flange end

Standards:
Design & Manufacture: BS 1873, ASME B16.34
Face to Face: ASME B16.10, EN 558, BS2080
Connection End: ASME B16.5, ASME B16.25, EN 1092
Test and Inspection: API 598, EN 12266, BS 6755
Sizes: 1/2″ – 12″  (DN15 – DN300)
Pressure Rating: Class150 – Class900
Body Materials : WCB, LCB, WC6, WC9, C12, C5, CF8, CF3, CF3M, CF8M etc.
Operation: Handwheel, Gear, Pneumatic, hydraulic and Electric actuator.
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