Introduction
Introduction
A fluid pressure regulator is used in air spray systems to ensure accurate, positive control of fluid pressure to an air spray gun or to a low pressure dispensing valve or atomizing head.
A regulator installed at a circulating line
Back Pressure Regulators
Models 233810, 233811, 233812, 233950, 234255, 234257, 234258, 233758, 234261, and 234262, are back pressure regulators that limit the supply pressure to a set value by opening an outlet and guiding back excess material when the predetermined pressure has been achieved. These valves are used in circulating systems. Model 233810 pneumatic back pressure regu- lator is shown in FIG. 1.
Fluid Inlet (from gun)
Fluid Pressure Regulators
Models 233757, 233759, 233774, 234263, 234267, and 234273 (FIG. 2.) are mechanically operated fluid pres- sure regulators designed primarily for use with low to medium viscosity fluids.
Models 233773, 233809, 234256, and 234272 (FIG. 3.) are pneumatically operated fluid pressure regulators designed primarily for use with highly viscous coatings.
Air inlet
Piston |
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Diaphragm | Fluid Outlet | |
(return line) | ||
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Valve plunger
TI1773A
Fig. 1. Cutaway of Pneumatic Back Pressure Regulator
6 | 309474K |