piston overflow valve DN 25 type UV13 made of grey cast iron EN-JL1040 pressure range 0,5 - 1,5 bar seal metall for liquid and gaseous media
piston overflow valve DN 25 type UV13 made of grey cast iron EN-JL1040 pressure range 2,0 - 5,0 bar seal metall for liquid and gaseous media
piston overflow valve DN 100 type UV13 made of grey cast iron EN-JL1040 pressure range 2,0 - 5,0 bar seal metall for liquid and gaseous media
flange overflow valve DN 40 PN40 type UV10 made of gunmetal/brass pressure range 5,5 - 10,0 bar seal FKM for liquid and gaseous media
piston overflow valve DN 32 type UV13 made of stainless steel AISI 316L pressure range 0,5 - 1,5 bar seal metall for liquid and gaseous media
piston overflow valve DN 65 type UV13 made of stainless steel AISI 316L pressure range 0,5 - 1,5 bar seal metall for liquid and gaseous media
piston overflow valve DN 20 type UV13 made of cast iron 1.0619+N pressure range 1,0 - 3,0 bar seal metall for liquid and gaseous media
flange overflow valve DN 20 PN40 type UV11 made of stainless steel AISI 316L pressure range 5,5 - 10,0 bar seal EPDM for liquid and gaseous media
piston overflow valve DN 25 type UV13 made of SG iron EN-JS1049 pressure range 1,0 - 3,0 bar seal metall for liquid and gaseous media
piston overflow valve DN 20 type UV13 made of stainless steel AISI 316L pressure range 4,0 - 10,0 bar seal metall for liquid and gaseous media
flange overflow valve DN 25 PN40 type UV09 made of gunmetal/brass pressure range 5,5 - 10,0 bar seal EPDM for liquid and gaseous media
piston overflow valve DN 65 type UV13 made of stainless steel AISI 316L pressure range 2,0 - 5,0 bar seal metall for water
We can manufacture the flange-overflow-valves in the nominal sizes DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80 and DN100. The preset pressure can range from 0,5 bar to 10 bar. The seal can be made of FKM, EPDM or metal. The valve itself can be made of stainless steel, spheroidal graphite iron, red brass, grey cast iron or cast iron, depending on the requirements. Approvals like TA air are available, just like material certificates and individual acceptance e.g. by TÜV. Our UV13 series can be used in temperatures of up to +450°C, depending on the material. Due to the high nominal sizes, high KV and KVS factors can be reached. If you need any additional information on flange-overflow-valves, please do not hesitate to contact our NieRuf team.
Overflow-valves with flange connection usually work proportional, which means that if power P1 (input pressure) is higher than P2 (spring force), the valve opens. The stroke variation happens with the pressure increase, the opening of the valve releases the excess pressure, which reduces the pressure in the system. Once the pressure drops and P2 is again higher than P1, the valve closes and pressure can build up. This makes overflow-valves with flange connection ideal to secure important valves and system components.
Special requests, spare parts or a quick support? Our staff will answer your questions and concerns immediately.
You can reach us from Monday to Friday at +497143 9666900 and any time at sales@nieruf.com
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