Description
The Parker 251503 is the low temperature (LT) differential check valve assembly for the Parker V300 auto purger. The Parker V300 rapid purger removes non-condensable gases from ammonia refrigeration systems and handles 4 to 20 purge points.
Key specifications
- Part number: 251503 (differential check valve assembly, low temp)
- Differential: 40 psi
- High temperature version: 206536 (50 psi differential)
- V300 maximum rated pressure: 305 psig (21.0 barg); ambient range 35°F to 130°F (2°C to 54°C)
Common questions
HT or LT: which do I need?
Parker lists the 251503 as the low temperature check valve with a 40 psi differential and the 206536 as the high temperature version with a 50 psi differential.
Specifications are based on Parker Refrigerating Specialties Bulletin 76-00 F (V300 Auto Purger). Confirm fit, ratings and application requirements before ordering.
Disclaimer: The image shown is a general representation of the product category and may not depict the exact part number offered. Actual product appearance, specifications, and configuration may vary.
