Designation of forged valves for nuclear energy
1 - Type designation
A00 - Gate valve
A10, A11, A10.0 - Globe valve
A30 - Piston check valve
A43 - Swing check valve
2 – Direction of flow:
1 - straight
2 - angle
8 – off-set ends
3 - Connection:
1 - flanged
2 - butt weld
3 - socket weld
5 - threaded
6- combined (1-2)
4 – Method of operation:
1 – hand wheel
2 – spur gear
3 – electric actuator
4 – pneumatic or hydraulic
5 – direct remote control
6 – bevel gear
7 - automatic
8 – prepared for actuator
5 – Material of body:
A - 1.0425; E - 1.0460; J - 1.4541
6 – Nominal pressure -PN
7 – Nominal diameter -DN
Designation of cast valves for nuclear energy
1 - Type designation
S38 - Gate valve
L10- Swing check valve
2 – Direction of flow:
1 - straight
2 - angle
8 – off-set ends
3 - Connection:
1 - flanged
2 - butt weld
5 - threaded
6- combined (1-2)
4 – Method of operation:
1 – hand wheel
2 – spur gear
3 – electric actuator
4 – pneumatic or hydraulic
5 – direct remote control
6 – bevel gear
7 - automatic
8 – prepared for actuator
5 - Material of body:
0 - stainless steel
2 – alloy cast steel;
5- structural (carbon) cast steel
6 – Nominal pressure -PN
7 – Nominal diameter -DN