Non return valve with sealing ring

Non-return valve
Non-return valve
 

Steel, surface chrome-VI free, galvanised

Item N°. D G G1 L SW Serie pce./bag
1018-005 8 M 10 x 1 M 12 x 1 43 12 LL 100

Matching nuts and cutting rings can be found here:

Coupling nuts
Cutting ring