Check/Non Return Valve
   
Thread Size Dimension in mm Part Number
Inch A B L Vb  
1/4 88 14.1 56 22 NRV-4N
3/8 100 14.1 65 28 NRV-6N
1/2 108 19 62 28 NRV-8N
5/8 108 19 58 28 NRV-10N
3/4 113 19 64 32 NRV-12N
1 134 24 71 41 NRV-16N