Danfoss VCM 10 Non Return Valve Instruction Manual
- May 15, 2024
- Danfoss
Table of Contents
Danfoss VCM 10 Non Return Valve
Important Information
The Service guide covers the instruction for disassembling and assembling the VCM 10 and VCM 13 Non-return valve.
IMPORTANT:
It is essential that the VCM 10 and VCM 13 are serviced in conditions of
absolute cleanliness.
WARNING:
Do not use silicone when assembling the VCM 10 and VCM 13. Do not reuse
disassembled O-rings; they might be damaged. Always use new O-rings.
For a better understanding of the VCM 10 and VCM 13 , please see the sectional view.
Tools needed:
- Snap ring pliers
- Screwdriver
Disassembling
-
Mount the VCM10 / VCM 13 into a vice with aluminum trays.
-
Turn the nut CCW with snap ring pliers.
-
Remove the nut
-
Remove the spring.
-
Remove the valve cone.
-
Remove the O-ring at the cone with a small screw driver.
-
Remove the O-ring at the thread end of the valve with a small screw driver.
Assembling
-
Lubrication:
- To prevent seizing-up, lubricate threads with PTFE lubrication type.
- O-ring inside VCM 10 / VCM 13 may be lubricated only with clean Filtered water.
- O-rings at the thread end must be lubricated.
- It is important to lubricate ALL parts to be assembled with clean filtered water.
-
Mount the lubricated O-ring at the thread end of the valve.
-
Mount the water lubricated O-ring on the cone. Ensure the O-ring is pushed fully into the O-ring groove.
-
Mount the cone.
-
Mount the spring onto the cone.
-
Lubricate the threads of the nut.
-
Screw in the nut.
-
Tighten the nut with a snap ring pliers.
-
Lubricate the threads at the valve end.
Testing valve function:
Verify free movement of valve cone.
Spare part list and sectional drawing
Spare part list
| Pos. | Qty. | Designation | Material | Seal set 180H400 3 |
|---|---|---|---|---|
| 5 | 1 | O-ring 19.20 x 3.00 | NBR | x |
| 6 | 1 | O-ring 40.00 x 2.00 | NBR | x |
4 years for inspection and exchanging O-rings as needed.
Danfoss A/S
High Pressure Pumps
Nordborgvej 81
DK-6430 Nordborg
Denmark
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