Check Valves
Reliable backflow prevention for critical pipeline and process applications. Swing, piston, dual plate, and tilting disc designs engineered for fast closure and minimal pressure drop from 2" to 60".
Check Valve Types
Four proven designs to match your flow conditions, installation constraints, and closure speed requirements — from full-bore swing checks to ultra-compact dual plate designs.
Swing Check Valves
Full-bore swing disc design for low pressure drop in horizontal or vertical-up pipelines. Available with external lever and spring for non-slam closure in critical applications.
Piston Check Valves
Spring-assisted piston disc provides rapid closure and excellent sealing. Ideal for high-frequency cycling applications where water hammer must be minimised.
Dual Plate Check Valves
Ultra-compact wafer design fits between standard flanges. Twin spring-loaded plates provide fast closure with minimal pressure drop. Light weight reduces pipeline stress.
Tilting Disc Check Valves
Tilting disc pivots on an eccentric pin for fast, non-slam closure. Low-profile design minimises turbulence and provides excellent flow characteristics for large-bore pipelines.
Technical Specifications
Complete specification range for GLB check valves. Non-slam, spring-loaded, and damped closure options available for all configurations.
| Parameter | Range / Options |
|---|---|
| Size Range | 2" to 60" (DN50 – DN1500) |
| Pressure Class | ANSI 150, 300, 600, 900, 1500, 2500 |
| Body Materials | A216 WCB, A217 WC6/WC9, A352 LCB/LCC, A351 CF8M, A351 CF3M, Duplex |
| End Connections | Flanged RF/RTJ, Butt Weld (BW), Wafer (Dual Plate) |
| Disc Material | 13% Cr, Stellite Overlay, Monel, Inconel, Duplex SS |
| Seat Material | Integral Hard-Faced (Stellite 6), Renewable Seat Rings |
| Closure Feature | Standard, Spring-Assisted, Non-Slam, Damped |
| Temperature Range | -46°C to +566°C (depending on material grade) |
Standards & Certifications
All GLB check valves are designed, produced, and tested to internationally recognised industry standards.
Applications
GLB check valves protect critical equipment and pipelines from backflow damage across the energy, process, and water industries.
Pump Discharge
Prevent reverse flow and protect centrifugal and reciprocating pumps from backflow damage. Non-slam designs eliminate water hammer in pump trip scenarios.
Pipeline Protection
Backflow prevention in oil & gas transmission pipelines, compressor stations, and metering runs. Full-bore swing checks for unobstructed flow and pigging capability.
Compressor Stations
Fast-acting check valves at compressor discharge to prevent reverse rotation and gas backflow. Spring-assisted and tilting disc designs for rapid closure.
Water & Wastewater
Protect pumping stations, treatment plants, and distribution networks from backflow contamination. Rubber-lined options for long service life in water service.
Request a Quote for Check Valves
Tell us about your backflow prevention requirements and our team will recommend the optimal check valve configuration and deliver a competitive quote within 24 hours.