MODEL DA8
DO-ALL SERIES VIII
DIFFERENTIAL BACK
PRESSURE REGULATOR
Spring Operated:
1/2" – 4" (DN15 - 100)
The Model DA8 is a differential back pressure regulators
used to maintain a constant pressure differential between a fluid loading
pressure (PLOAD) piped to the spring chamber and the regulator’s inlet pressure
(P1 ). In the Model DA8 the P1 pressure
is higher than the PLOAD (Poitive Bias). The
amount of bias or differential pressure (∆PDiff) is controlled by the
user adjustable setting of the range spring in the spring chamber.
The regulator uses a flow-to-open, cage balanced trim. The
diaphragm is isolated from the fluid flow path by a balancing piston, which
allows the user to specify either internal or external sensing of the P1 pressure.
APPLICATIONS
The “DO-ALL” design allows application of all types of clean
fluids. Designed primarily for gaseous and liquid service applications where
excessive cavitation is absent. Excellent for atmospheric industrial ases – GN2
, GOX, Ar, He, H2 , CO2 – as well as a
natural gas regulator. Used as a utilities – air, oil, water, steam –
regulator. Non-corrosive chemical services – gas or liquid – are possible with
broad materials range.
BODY SIZE: 1/2", 3/4", 1", 1 1/2", 2", 2
1/2", 3", 4"
MAXIMUM-CV: 187