Single Check Valve (SCV) Compression or Female BSPP
Part Number: EB420
Product Overview
Single Check Valves with DZR brass Valve Bodies and compression or female BSP connections. Sprung-loaded Cartridge with resilient seat provides positive closure, no water hammer and low opening pressure. Hotstamped DZR compression nuts with fine thread minimises the torque required to make the joint. Model 303 is an economy WRAS approved Single Check Valve available in 15 mm compression only.
Specification Clause
Where indicated on the drawing a low headloss type single check valve shall be installed – model EB420 - as distributed by Arrow Valves Ltd – Tel 01442 823123 www.arrowvalves.co.uk. The pressure drop across the assembly at 1.5 m/s shall be less than 0.08 bar. The body shall be DZR brass with compression connections.
Application
Backflow prevention for fluids in categories 1 – 2 (refer to Schedule 1 of Water Regulations July 1999).
Fluid Category 2 includes -
• Fire Sprinkler systems without additives
• Hot water
• Water cooled air conditioning without additives
• Branch to steel pipes (black & galv. from supply pipe
• Non return valve for pumps
• Domestic softening plant (common salt regeneration)