ETVS25-10 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.

Specifications for ETVS25-10
Nominal diameter DN25
Kvs 10 m3/h
Actuator RVAN5
Specifications for ETVS - 2-way control valves, DN15-50, kvs 0.25-40, 20 mm stroke, DZR
Pressure rating PN16
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 CW511L
O-rings EPDM
Material, connections
Nut Malleable cast iron, galvanized
Nipple Dezincification resistant brass CW 511L
Fitting seal Novatec Premium 2, Nitrile bonded aramid fibre with graphite
S0603080300

Spare parts kit, packing box for ETRS, MTVS and MTRS valves (until 2019-12), for ETVS valves (until 2021-04)…

S2921357901

Spare parts kit, packing box for ETRS, MTVS and MTRS valves (from 2020-01) and for ETVS valves (from 2021-05)

STEMHEATER

Valve stem heater