Danfoss VCM 46 Service guide

Service guide

Non-return valve

VCM 46
Disassembling and Assembling

The Service guide covers the instruction for
disassembling and assembling the VCM 46 Non­return valve.

IMPORTANT:
It is essential that the VCM 46 is serviced in
conditions of absolute cleanliness.

WARNING:
Do not use silicone when assembling the VCM

46. Do not reuse disassembled O-rings; they
might be damaged.
Always use new O-rings.

For a better understanding of the VCM 46, please
see the sectional view.

Tools needed:

• Snap ring pliers or nylon mandrel

• Screwdriver

Disassembling

1. Mount the VCM 46 into a vice with
aluminum trays.

2. Turn the nut CCW with snap ring pliers.

© Danfoss | DCS (im) | 2021.03

180R9420 | AX323840049566en-000201 | 1

Service guide | Disassembling and Assembling VCM 46

3. Alternatively use a mandrel made of nylon.

5. Remove the spring.

4. Remove the nut.

6. Remove the valve cone.

© Danfoss | DCS (im) | 2021.03

7. Remove the O-ring at the cone with a small
screw driver.

2. Remove the O-ring at the thread end of the
valve with a small screw driver.

180R9420 | AX323840049566en-000201 | 2