172-65174MA-11 (COSR Pressure Reducing Valve) 16 Feb 2022
10
COSR-16/COSR-21 (65 to 150 mm (2
1
/
2
to 6 in))
No.
Name
A
*
B
*
C
*
D
*
E
*
No.
Name
A
*
B
*
C
*
D
*
E
*
1 Main Body
18 Spanner Cap
2 Cover
19 Plug
– Sensing Line Port
3 Main Valve Seat
20 Lower Pilot Body Gasket
4 Main Valve
21 Cover Gasket
5 Main Valve Holder
22 Main Valve Seat Gasket
6 Piston
23 Pilot Screen Holder
Gasket
7 Cylinder
24 Pilot Valve Seat Gasket
8 Pilot Body
25 Upper Pilot Body Gasket
9 Pilot Valve
26 Cylinder Gasket
10 Pilot Valve Seat
27 Piston Ring
11 Diaphragm
28 Tension Ring
12 Pilot Screen
29 Seal Ring
13 Pilot Screen Holder
30 Pilot Valve Cover
14 Diaphragm Support
31 Main Valve Spring
15 Coil Spring
32 Pilot Valve Spring
16 Spring Housing
33 Silencer
17 Adjustment Screw
*Replacement parts are available only in the following kits:
A = Maintenance Kit
B = Repair Kit for Main Valve
C = Repair Kit for Piston
D = Repair Kit for Piston Rings
E = Repair Kit for Pilot Valve
Contact TLV for COSR-21 replacement parts.