Catalog

Features
Reliability - Automatically sustains pressure directed by the pilot line on a 1 to 1 ratio (optional ratios shown below). The balanced internal valve functions to relieve excess pressure, or to maintain pressure against demand. Rubber seated valves provide zero leakage.

Installation Versatility - Operates in any position. May be supported by piping alone or by a mounting bracket. The IN and OUT ports are plainly marked on the body.

Ease of Maintenance - The valve may be serviced withoutmore
Unit of Measure

Specifications

Old Part #

P -055163-00000 P055163 P-055163 P55163 P-55163

Pipe Size

1"-11

Model Designation

8-S

Weight

2 lb7 oz

Type

3 way pilot operated pressure control

Maximum Supply Pressure

250 psi

Maximum Pilot Pressure

250 psi

Ratio-Pilot To Delivery

1:1 standard; others noted below.

Temperature Range

-20 to 160 ºF

Media

Air or inert gas

Pilot Port Size

1/4" NPT

Body Port Size

1/4" and 1" as noted below

Hysteresis

Less than 5 psi.

Materials

Body Material

3/4" and 1" die cast aluminum 3/8" & 1/2" die cast zinc

Diaphragm Material

Nylon reinforced HYCAR

Other Material

Anodized aluminum or plated

Dimensions

A

4 11/32 in.

B

4 1/8 in.

C

4 1/8 in.

D

5 1/4 in.

E

4 7/8 in.

F

2 7/8 in.

G

1 1/2 in.

H

2 1/16 in.

I

3 3/16 in.

J

3/4 in.

K

13/16 in.

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