Phone: 1-859-255-5001 Fax: 1-859-255-6656

Direct Pilot Operated
Normally Open
Air, Oil, Water or Vacuum

       
       

Specifications

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ANSI Symbol

Body Cast Bronze (ASTM B-61)
Pilot Cap Anodized Aluminum or Brass
Internal Parts Brass and Stainless Steel
Seals Buna-N Standard (Optional Seals Available)
Temperature Range -30° F to +250° F with Standard Seals
Pressure Rating Vacuum-500 PSI
Higher pressure ratings available, consult factory.
Pilot Ratio See model number chart below

 

NOTES:

Use -H suffix for liquid pilot media (oil, water*, etc.)
* -B suffix must also be used with water or other corrosive pilot media (except for 324632, 325116, and 325120 models where -B materials are standard).

 


Model Numbers
Standard Pilot Ratio

NPT Pipe Size
(inches)
Cv Factor Pilot Ratio* Weight (pounds) Model Number
1/4 2.56 1:1 1.4 321304
3/8 2.90 1:1 1.4 321306
1/2 3.19 1:1 1.4 321308
3/4 6.85 1:1 2.1 321312
1 12.10 1:1 3.8 321316
1 1/4 21.00 1:1 6.50 321320
1 1/2 25.80 1:1 8.00 324624
2 50.00 1:1 16.00 324632
* Internal Line Pressure vs. Minimum Pilot Pressure

High Pilot Ratio

NPT Pipe Size
(inches)
Cv Factor Pilot Ratio* Weight (pounds) Model Number
1/4 2.56 8:1 4.5 325104
3/8 2.90 8:1 4.5 325106
1/2 3.19 8:1 4.3 325108
3/4 6.85 8:1 4.9 325112
1 12.10 3:1 6.00 325116
1 1/4 21.00 3:1 6.80 325120
1 1/2 25.80 4:1 8.40 325124
2 50.00 2:1 13.00 325132
* Internal Line Pressure vs. Minimum Pilot Pressure


How to Order Example:

This would be a standard pilot ratio, direct pilot operated, normally open valve with 1/4" NPT ports, "-25" seal option for non-lube service and a "-H" option for hydraulic pilot signal activation.

Note: When ordering, always state:
  1. Model
  2. Seal Option Code or Codes
  3. Pilot Option Code or Codes