These valves work to release overpressure in a piping system. wALwORTh offers these kinds of valves as a solution for the automatic release of pressure from either a boiler, pressure vessel or other systems when the pressure or temperature exceeds preset limits. wALwORTh offers the following types of valves:

• Safety Valves.- A pressure relief valve characteryzed by rapid opening or closing and normally used to relieve compressible fluids. These valves are made from Bronze and used for gas and steam only. Its main use is to relieve the pressure from the system such as boilers, autoclaves, compressors, steam generators, pressure vessels, bronze air or gas pipelines.
• Relief Valves.- A pressure relief valve characteized by gradual opening or closing, generally proportional to the increase in pressure. It it normally used for incompressible fluids. This type of valve is typically made from Bronze and used only for water service. Its purpose is to release of pressure acting due the static pressure of the liquid against the vessel or container, releasing the pressure accordingly with the increase of pressure over the opening pressure, protecting the equipment or system of damage. Only used for liquids it is commonlly used in bronze tanks, pipelines or other vessels where is not required a big relief capacity.
• Safety and Relief Valves.- A pressure relief valve characteryzed by rapid opening or closing or by gradual opening or closing, generally proportional to the increase or decrease in pressure. It can be used for compressible or incompressible fluids. This design is made bronze and may be used for any fluid (gas, steam or water). This is a valve which automatically releases the pressure when the over pressure is achieved and can be used as a Safety Valve or a Relief Valve depending on application.

• Model 1541
• Model 1478

SAFETY AND RELIEF BRONZE VALVES MODEL 1541

Design Features Adjusting ring with spherical end in order to stabilize and maintain aligned the working parts. The spring is made from carbon steel coated with cadmium or zinc, it also can be supplied in stainless steel according to the Customer specifications. The upper adjusting ring regulates the blow down of the valve. Lateral discharge of the fluid, female threaded connection as per ANSI B1.20.1. The lower adjusting ring regulates the simmer of the valve. The lever is designed in one piece to make it easier the operation of the valve. The adjusting ring bolts immobilizes each ring, this guarantees that the valve won’t present any change in its calibration because of any vibration or hit during the operating process. Inlet male threaded connection As per ANSI B1.20.1.

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SAFETY AND RELIEF BRONZE VALVES MODEL 1478

Design Features Adjusting ring with spherical end in order to stabilize and maintain aligned the working parts. The spring is made from carbon steel coated with cadmium or zinc, it also can be supplied in stainless steel according to the Customer specifications Lateral discharge of the fluid, female threaded connection as per ANSI B1.20.1. The base, disc and spindle can be supplied in stainless steel, according to the Customer specifications. Inlet male threaded connection as per ANSI B1.20.1.

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