Danfoss Solenoid Valves Two-Step On Off, Type PMLX Datasheet
Summary
The PMLX valve is a 2-step servo-operated main valve engineered for robust performance in large industrial refrigeration systems using suction lines, such as those with ammonia or fluorinated refrigerants. Its unique two-stage opening process stabilizes working conditions by eliminating pressure pulsations and "shocks," particularly crucial during defrost cycles. This technical manual provides comprehensive details required for selection and integration, including full material specifications, multiple flange connection options (ANSI, DIN), detailed capacity tables ([kW] or Tons of Refrigeration), and advanced sizing data to ensure safe and efficient system operation.
Manual Details
| Brand | Danfoss |
|---|---|
| Pages | 24 |
| File Size | 1.71 MB |
| Published | June 05, 2026 |
Enter the captcha to get the download link:
Frequently Asked Questions
How does the PMLX valve open and what is its key function?
It uses a two-step opening process, stabilizing working conditions by automating full opening when differential pressure reaches approx. 1.5 bar (22 psig).
What refrigerants are compatible with PMLX valves?
It supports a wide range of flanging standards (DIN, ANSI) using various connection options like welding or soldering.
Is PMLX suitable for hot gas defrost applications?
Yes, it is especially suitable for systems needing low pressure drop during hot gas defrost in large industrial refrigeration units.