Piston check valve A30

Piston check valve A30, threaded bonnet, sizes from DN10 to DN65, pressure up to PN400, working temperature up to 350°C.

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Working medium: radioactive water, water steams and all other operating media inside and outside hermetic zones of nuclear power plants.
Application: nuclear and chemical industry.
Seismic Resistance I-st class, according to IEC 980, IEEE 382, EN 60068-2-6;
Class of safety: 2-nd, according to NP-068-05, NP-001-15.

The piston check valve A30 is constructed with a monolithic body, inside which is located the closing piston (plunger).
The body is made of forging, the bonnet of rolled bar.
The seats of body and closing piston are welded on with wear-resistant material
The piston is made of stainless corrosion-resistant steel grade W№1.4541 / X6CrNiTi18-10.
The connection is with butt welding type "BW" according to DIN, GOST, ČSN.
The operation of piston check valve A30 is automatic.
The tests of the check valve are carried out in accordance with the standards for valves intended for nuclear power plants or according to the working conditions and customer requirements
The piston check valves A30 can be installed in any position, and the installation must be considered with the marking (arrow) showing the direction of the flow (working medium).

Repairable shape of body seat, without dismounting from the pipeline
Monolithic stainless steel closing piston for wear resistance and corrosion resistance.