Our products line including:
Brass Angle Valves ,  Brass Ball Valves ,  Brass Bibcocks,
Brass Manifold ,Brass Pipe Fittings, Check valves, Stop Valves , 
Gas Valves,Gate Valves,  Check valve,Radiator Valves.

CSA/UL Approved Bronze check Valve/Brass check Valve
Size: 1/4" 3/8" 1/2" 3/4" 1" 1-1/4" 1-1/2" 2"
Detailed Product Description:
1) Threaded - Full Port - Blowout-Proof Stem - TFE Seats
    - Common Handle and Lockable Handle
2) 1/4" -2" 600 PSI/41.4 Bar Non-Shock Cold Working Pressure
3) CSA - ANSI Z21.15/CGA 9.1
4) UL - Guides YQNZ,YRBX,YRPV and YSDT
Size Range - 1/4" - 2"

Brass check  valve
model: BRA
Size: 1/2"-1"
standard: full port
material: brass body , brass ball, aluminum butterfly handle
Temperature: -30<t<120
threaded: iso228/1

Technical Requirement
Before assembling, all parts should be clean, no oil or grease, remove all burrs and sharp edges.
Before connecting, body cap male thread should be coated with sealing glue.
Handle turn or close freely.
After assembling, test by water at pressure no less than 0.8MPA, no leakage.