Minature, diaphram relief valves with exceptional sensitivity. Ideally suited for applications requiring proportional relief. 3 position knob pushes to lock and can be removed for tamper resistance.

Order Information

Pipe Size

Model Number

Description

1/8"

E191

Die cast black coated body, brass seat Buna N Diaphragm

Specifications

• Maximum Pressure Range

150 psi

• Maximum Temperature Range

40°F to 120°F

Air Relief Capacity - SCFM

Range Psig

Instrumentation Spring Range 1 to 15

Low Pressure Spring Range 15 to 30

Standard Pressure Range 50 to 125

Set Pressure (psig)

5.0

10.0

20.0

40.0

60.0

80.0

Rated flow @ 10%

.1

.3

.5

4.0

.2

5.5

Rated Flow @ 20%

.3

.7

2.8

15.0

6.5

14.0

Rated Flow @ 30%

.5

2.3

6.8

25.0

15.0

23.0

• Reset @ ± 1% of Set Pressure

• Rated flows in SCFM are taken at percentage of pressure over set pressure

• The relief valve will not function as a pressure regulator - excess pressure must be vented to atmosphere.