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General| Brand | Danfoss |
|---|---|
| Model | PM3 |
| Category | Control Unit |
| Language | English |
Provides Nm and lbf-ft values for tightening specific valve parts (a-m) as shown in Table 1.
Lists applicable refrigerants (HCFC, HFC, R717) and notes on flammables.
Specifies the temperature limits for PM valves (-60/+120°C).
States the maximum working pressure for PM valves (28 bar g).
Describes PM 3 usage, flow regulation, and pilot valve connections (S I, S II, P).
States that the regulating range is dependent on pilot valves.
Details minimum differential pressure (0.07-0.2 bar) required for valve opening.
Covers flange mounting, pipe support, stress relief, gasket use, bolt tightening, and pressure testing.
Guidance on welding/soldering flanges, pipe alignment, and ensuring a stress-free assembly.
Describes valve identification via the ID plate and corrosion protection.
Instructions for dismantling the valve, cleaning the strainer, and checking parts.
Details specific tightening procedures for the manual operation device.
Emphasizes using original Danfoss parts for replacements.
