Safety valves spring-loaded flange SN (SPKR, SPQR)

The valve polnopodvesnyj spring flange NJ, nen, nen, NJ, nen, nen

Wednesday NJ - water, air, steam, ammonia, oil, natural gas, liquid and gaseous hydrocarbons and the environment is not aggressive to the materials used at temperatures from -40 to +425 With steel 20 and at a temperature of -60 to +600 C for steel AND
The connection to the pipe - flanged with connecting dimensions according GOST 12815-80 (Spanish 3, row 2)
Valves type SPKR and SPKR have a device for manually opening and purge valve

DN 50, 80 mm RP 4.0 MPa

Designed to protect equipment against inadmissible overpressure in excess and used on tanks, boilers, tanks, vessels and pipelines for automatic discharge of the working medium into the atmosphere or exhaust valves. When restoring the operating pressure reset environment is terminated.

DIGNITY

* The internal cavity of the valve is sealed against the external environment.
* The valve is equipped with a bulkhead that protects the spring from high temperatures.

The safety valve is designed to protect against mechanical destruction of the vessels and pipelines with pressure by automatically release excess liquid, vapor and gaseous environment of systems and vessels with excessive pressure when excessive pressure increase.

Safety valves are installed on virtually all domestic and industrial tanks, vessels and pipelines; and must be periodically checked in specialized organization or testing in action. For example, according to the rules of Rostekhnadzor for power plants on each vessel must be at least two valves (one for work, another control is configured at a lower pressure). Consumption of one of the valves shall fully protect the vessel from possible excess pressure. According to the rules, do not install any shut-off valve between the valve and the protected vessel. The valve typically has a corner case, but may have a passing body. Despite the package type, the valve is mounted vertically, so that during closing of the saddle stem is down.