ETVS50-40 ETVS - 2-way control valves, DN15-50, kvs 0.25-40, 20 mm stroke, DZR
2-way valves designed for control of cold, hot or glycol-mixed water, for use in DZR requirement systems (DZR = Dezincification Resistant) or district heating within the temperature range -5°C...+150°C. They are pressure balanced (from DN20-50, not DN15) and can therefore handle high differential pressure with low force. The valves are intended to be used together with Regin’s RVAN5 actuators. We also offer adapters for actuators of other brands.
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Specifications
Nominal diameter | DN50 |
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Kvs | 40 m3/h |
Actuator | RVAN5 |
Pressure rating | PN16 |
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Connection | BSP externally threaded according to ISO 228/1; supplied with threaded connections |
Flow characteristics | Equal percentage |
Max. leakage | 0.0 % of the Kvs value (PTFE gasket, carbon-filled 25 %, no leakage) |
Media temperature | -5…+150°C |
Media | Hot water, cold water, glycol-mixed water |
Rangeability | 100:1 |
Stroke | 20mm |
Max. diff. pressure | 1600kPa |
Body | Gunmetal CC491K (RG5) |
Seat | Stainless steel 1.4301 |
Plug | Stainless steel 1.4305 |
Stem | Stainless steel 1.4305 |
Seat packing | PTFE with 25 % carbon |
Packing box | Dezincification resistant brass CW 602N, self-adjusting teflon |
O-rings | Viton |
Material, connections | |
Nut | Malleable cast iron, galvanized |
Nipple | Dezincification resistant brass CW 602N |
Fitting seal | Novatec Premium 2, Nitrile bonded aramid fibre with graphite |
Documentation
Accessories

S0603080300
Spare parts kit, packing box for ETRS, MTVS and MTRS valves (until 2019-12) and for ETVS and NTVS valves.