Instruction Manual for Danfoss models including: VCM 10 Non Return Valve, VCM 10, Non Return Valve, Valve
Service guide Non-return valve VCM 10 / VCM 13 Disassembling and Assembling 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 1. Mount the VCM10 / VCM 13 into a vice with aluminum trays. 2. Turn the nut CCW with snap ring pliers. © Danfoss | DCS (im) | 2021.03 180R9421 | AX329941721130en-000201 | 1 Service guide | Disassembling and Assembling VCM 10 and VCM 13 3. Remove the nut. 4. Remove the spring. 5. Remove the valve cone. 6. Remove the O-ring at the cone with a small screw driver. 7. Remove the O-ring at the thread end of the valve with a small screw driver. © Danfoss | DCS (im) | 2021.03 180R9421 | AX329941721130en-000201 | 2 Service guide | Disassembling and Assembling VCM 10 and VCM 13 Assembling 1. 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. 2. Mount the lubricated O-ring at the thread end of the valve. 3. Mount the water lubricated O-ring on the cone. Ensure the O-ring is pushed fully into the O-ring groove. 4. Mount the cone. 5. Mount the spring onto the cone. 6. Lubricate the threads of the nut. © Danfoss | DCS (im) | 2021.03 180R9421 | AX329941721130en-000201 | 3 Service guide | Disassembling and Assembling VCM 10 and VCM 13 7. Screw in the nut. 8. Tighten the nut with a snap ring pliers. 9. Lubricate the threads at the valve end. Testing valve function: Verify free movement of valve cone. © Danfoss | DCS (im) | 2021.03 180R9421 | AX329941721130en-000201 | 4 Spare part list and sectional drawing Spare part list Service interval Pos. Qty. Designation 5 1 O-ring 19.20 x 3.00 6 1 O-ring 40.00 x 2.00 4 years for inspection and exchanging O-rings as needed. Material NBR NBR Seal set 180H4003 x x Danfoss A/S High Pressure Pumps Nordborgvej 81 DK-6430 Nordborg Denmark © Danfoss | DCS (im) | 2021.03 180R9421 | AX329941721130en-000201 | 5Danfoss A/S GPL Ghostscript 9.55.0