Butterfly Valves
High-performance butterfly valves for large-diameter isolation and throttling. Double offset, triple offset, and rubber-lined designs from 2" to 120" — compact, lightweight, and built for zero-leakage performance.
Butterfly Valve Types
Three configurations covering the full range of butterfly valve applications — from resilient-seated water service to metal-seated high-performance isolation at Class 600.
Double Offset Butterfly Valves
Dual eccentric disc design reduces seat wear and operating torque. Provides bubble-tight shut-off for general industrial service. Metal or resilient seated options.
Triple Offset Butterfly Valves
Three-dimensional eccentric design achieves metal-to-metal sealing with zero friction during operation. Fire-safe, zero-leakage performance for critical isolation and throttling.
Rubber-Lined Butterfly Valves
Fully lined body and disc with EPDM, NBR, or FKM elastomers for superior corrosion protection. Ideal for water, wastewater, and chemical applications at lower pressures.
Technical Specifications
Full specification range for GLB butterfly valves. Custom disc materials, seat options, and actuator packages available for every application.
| Parameter | Range / Options |
|---|---|
| Size Range | 2" to 120" (DN50 – DN3000) |
| Pressure Class | ANSI 150, 300, 600 |
| Body Materials | A216 WCB, A351 CF8M, Ductile Iron, Duplex SS, Super Duplex |
| End Connections | Wafer, Lug, Flanged RF/RTJ, Butt Weld (BW) |
| Disc Material | CF8M, Duplex, Monel, Alloy C276, Nickel Aluminium Bronze |
| Seat Material | PTFE, RPTFE, Laminated Graphite, Stellite, EPDM, NBR, FKM |
| Operation | Lever, Gear, Pneumatic Actuator, Electric Actuator, Hydraulic Actuator |
| Temperature Range | -29°C to +427°C (metal seat), -29°C to +120°C (rubber lined) |
Standards & Certifications
All GLB butterfly valves meet or exceed international design, manufacturing, and testing standards including fire-safe certification.
Applications
GLB butterfly valves deliver cost-effective, high-performance isolation and control across water, HVAC, industrial, and fire protection sectors.
Water Treatment
Municipal water supply, desalination plants, and wastewater treatment facilities. Rubber-lined options for long service life with minimal maintenance in water service.
HVAC Systems
Heating, ventilation, and air conditioning system isolation and control. Compact wafer design saves space and weight in building services installations.
Large-Diameter Isolation
Cost-effective isolation for large-bore pipelines where gate valves become impractical. Triple offset designs provide zero-leakage shut-off up to Class 600.
Fire Protection
Fire-safe certified butterfly valves for fire water mains, deluge systems, and sprinkler risers. API 607 fire-tested for critical safety applications.
Request a Quote for Butterfly Valves
From standard rubber-lined to high-performance triple offset — tell us your requirements and our team will deliver a competitive quote with full technical documentation within 24 hours.