The flanged gate valve with wrench nut is UL/FM approved for fire protection applications up to 70°C and is engineered with multiple safety features to ensure dependable operation. The resilient wedge is fully encapsulated with AVK’s drinking water-approved EPDM rubber compound through a double bonding process, providing excellent elasticity and long-term sealing performance. Combined with a triple stem sealing arrangement, high-strength stem, and comprehensive corrosion protection, the valve delivers exceptional reliability and durability.
Manufactured with precision-machined components, the valve is designed to provide smooth operation and minimal torque requirements, enabling easy opening and closing even after extended periods of service. Its full bore design minimizes pressure loss and ensures unrestricted flow, making it well suited for demanding fire protection networks where dependable water delivery is essential.
The gate valve body and bonnet are protected with a fusion bonded epoxy coating in accordance with recognized international standards, offering superior resistance against corrosion and environmental exposure. Designed for long service life and reduced maintenance requirements, the valve provides a robust solution for above-ground and underground fire protection systems in commercial, industrial, and municipal installations.
Features
- Fixed, integral wedge nut prevents vibration
- Wedge core in ductile iron, fully encapsulated in drinking water approved EPDM in a 2-step vulcanization process that leaves a very strong rubber-iron bond preventing corrosion underneath the rubber. No iron parts are exposed to the water
- A large through bore in the wedge eliminates collection of stagnant water which might cause contamination
- Wedge shoes integrated in the rubber
- Stainless steel stem with rolled threads for high strength
- Stem seal with one lower main O-ring backed up by two upper O-rings in a polyamide bearing replaceable under pressure
- Round bonnet gasket, fixed in a groove in the bonnet preventing it from being blown out in pressure surges
- Counterbored and hot melt sealed bonnet bolts in stainless steel, encircled by the bonnet gasket preventing contact with the water
- Full bore and clear way
- Low operating torque
- Fusion bonded epoxy coating, RAL 3000, acc. to DIN 30677
Technical Specifications
| Variant 145/40-002 | |
|---|---|
| Connection: | Flanged |
| Material: | Ductile Iron |
| DN: | DN65 - DN200 |
| PN: | ANSI CL150 |
| Closing direction: | Clockwise to Close |
Applications
- Fire protection systems for commercial, industrial, and residential buildings
- Fire sprinkler networks and hydrant installations
- Municipal water distribution systems
- Pumping stations and water transmission pipelines
- Industrial process water systems
- Warehouses, factories, and manufacturing facilities
- Airports, ports, and transportation infrastructure
- Hospitals, educational institutions, and public buildings
- Oil & gas and petrochemical facilities requiring fire safety systems Underground and above-ground piping networks
