MODEL 123
BACK PRESSURE /
RELIEF REGULATOR
The Model 123 is a relief regulator suitable as a back pressure
regulator or bypass valve for controlling inlet pressure between 2 and 350 psig
(.14 to 24.2 Barg) (525 psig (36.2 Barg) at 50% build-up). The body has an
angle configuration with a side inlet and a bottom outlet. Sizes are 1/2",
3/4", 1", 1-1/2" and 2" (DN15, 20, 25, 40 and 50).
Available options include cryogenic construction, NACE construction and a large
selection of trim, body and diaphragm materials. It is the most adaptable back pressure/relief
regulator Cashco manufactures.
APPLICATIONS
Designed for controlling a wide range of fluids including
air, inert gases, cryogenic gas or liquids, sour as, chemicals, water, fuel oil and steam.
MODEL 123-1+6+S
HIGH PRESSURE VERSION
DIFFERENTIAL BACK
PRESSURE RELIEF REGULATOR
Model 123-1+6+S is a “high pressure variation” of the basic Model
123-1+6 differential back pressure relief regulator. Inlet pressure may be as
high as 1500 psig (103 Barg). Differential pressures may vary from 15–350 psid
(1.03–24.1 Bard) in sizes through 1” (DN25), and from 10–230 psig (0.7–15.9
Bard) for size 1-1/2” (DN40). Mod el 123-1+6+S is NOT available for body size
2” (DN50)
APPLICATIONS
Most commonly applied to develop a constant differential pressure
across a rotating shaft seal, pro viding proper sealing and lubricating
conditions over varying pressure ranges. May be applied in liquid or gaseous
services..
BODY SIZE: 1/2", 3/4", 1", 11/2", 2"
MAXIMUM-CV: 7