Hygienic SS304 316L Sight Glass Type Safety Pressure Relief Valve

Stainless Steel 304 316L Sight Glass Type Hygienic Safety Pressure Relief Control Valve

Safety relief valve working pricple

This safety relief valve is a spring slightly lifted exhaust valve. Its basic structure is composed of valve body, valve disc, spring, upper cover, adjusting bolts and other components. The pre-tightening force of the compression spring is transmitted to the valve disc through the valve stem. When the pressure on the pressure surface is greater than or equal to the spring preload, the valve will automatically take off and release the pressure until the valve closes automatically when the pressure on the pressure surface of the disc is less than the spring force.

Safety relief valve applicaitons

• The safety exhaust valve is used as an overpressure protection device on pressure equipment, containers or pipelines. When the equipment is overpressured and reaches the set value, the valve opens automatically.
• Mainly used in the pharmaceutical, food and beverage, wine, chemical and other industries.

Technical Features

Material: 304/1.4301; 316L/1.4404

Connection standard: DIN SMS ISO IDF RJT BS4825 ASME BPE 3A DIN11864 DIN11853

Finish: Internal mirror polish Ra<0.8um; external Matte, bright, sandblasting

Product wetted seals: EPDM (FPM optional)

Working temperature: 0-120℃ (EPDM); 0-150℃ (FPM optional)

Applicable medium: Gas

Technical features:

The state of the excreted medium can be observed through the acrylic sight glass window, while preventing small amounts of excreted liquid from remaining in the window.  If liquid does remain, the glass window can be removed for cleaning.

Different configuration of safety relief valve

1.Safety valve with sight glass

2.Safety valve with sight glass and pressure gauge

Sight glass type safety relief valve drawing

Package

This safety relief valve is a spring slightly lifted exhaust valve. Its basic structure is composed of valve body, valve disc, spring, upper cover, adjusting bolts and other components. The pre-tightening force of the compression spring is transmitted to the valve disc through the valve stem. When the pressure on the pressure surface is greater than or equal to the spring preload, the valve will automatically take off and release the pressure until the valve closes automatically when the pressure on the pressure surface of the disc is less than the spring force.