Katup Solenoida Elektrogas EVRM NA 3/OT Berulir D1" 600 Mbar

          

EVRM-NA6 EVRM-NA8  EVRM-NA6 / EVRM-NA8 Printed in Italy - EE401/0900                      S O L E N O I D V A L V E S      ! " # $ % # " Solenoid safety valves for gas Manual reset - Normally open The EVRM-NA type valve is a manual reset safety valve that is normally open. This type of device, connected with one or more gas leakage detectors or alarm signals for the presence of carbon monoxide, is suitable for performing locking operations on the gas line. The EVRM-NA type valves are made in accordance with EN161 standard (when applicable). All models are conforming with the European Directives 89/336 EEC and 73/23 EEC. Features Large range for inlet/outlet connections, from 3/8” to & 6” pipes sizing. Provided with G1/4” pressure gauge on two sides in & the inlet pressure chamber (except brass models). Others gauge points on request. Optional G1/8” connection for closed position & indicator micro switch (on request from 3/4" to 6"). Fine mesh filter incorporated to prevent dirty & contamination of the seal seat (except brass models). EVRM-NA8 Maximum operating pressure 500 mbar. & & Suitable for air and non-aggressive gases (1, 2 and Technical specifications 3 families). Connections ……………….. f/f Gas threaded ISO 228/1 Coil insulation is class H (180° C). & from Rp 3/8" to Rp 2" & Terminals with DIN plug and PG connector. Flanged PN16 – ISO 7005 from DN65 to DN150 Valves are 100% tested by computerized testing & machineries and are fully warranted. Voltage rating ……………...230 Vac 50/60 Hz 110 Vac 50/60 Hz For valve identification see the following charts. & 24 Vac/dc 12 Vac/dc Voltage tolerance …………. -15% / +10% WARNING Power consumption ………. see charts This control must be installed in compliance with the Environment temperature …-15° C / +60° C laws in force. Read instructions before use. Max. working pressure …… 500 mbar Flow capacity ……………… see charts Seal ………………………… NBR Closing time ……………….. < 1 sec. Protection class …………… IP 54 Cable gland …………………PG09 Overall dimensions ……….. see charts Printed in Italy - EE402/0900  / . / - . , - + , * + ( ) * ' ( ' ) ' ' S O L E N O I D V A L V E S Operation The EVRM-NA type valve is a manual reset safety valve that is normally open. A manual operation is therefore necessary to open the valve and set the mechanism consenting to maintain this state. The powering by means of line current and/or condenser discharge, induced by the leakage detector, causes tripping of the mechanism and consequent closing of the gas passage. If energizing of the sensor persists due to the presence of gas, the valve remains under power and does not allow reset. When the causes for locking have been eliminated, valve must be opened manually. Accessories A fine mesh filter is provided, to prevent dirty contamination of the seal seat. However, an external strainer must be installed upstream of the valve. Brass models are available without internal filter only. Inlet pressure area is provided with bilateral G¼" gauges, to connect min/max adjustable pressure switches, leakage tester or other gas equipments. On request are available gauges in outlet area from DN32 model to DN50. These are standard from DN65 to DN150. Brass models are available without gauges only. On request, valves are supplied with a G1/8” connection EVRM-NA3 on the bottom, to installed a closed position indicator micro switch (from 3/4" to 6"). An adapting rod is General information provided too. Avoid overtightening and mount tension free. All components are design to withstand any mechanical, chemical and thermal condition occurring during typical Coil features service. Coil and DIN plug are provided with suitable gaskets, to An effective impregnation/heat treatment has been used avoid water and dirty contamination (see the Service to improve mechanical sturdiness, sealing and Instruction Section). resistance to corrosion of the components. Valves are suitable for use with air and non-aggressive gases included in the 1, 2 and 3 families (EN 437). For special applications ask the Corrosion Chart showing the compatibility of materials with fluids. Materials used: Aluminium Brass Cast iron Stainless steel Nitrile rubber (NBR) Ethylene propylene (EPDM) Viton™ PTFE (Teflon™) Note: the chart is for general recommendation only. Printed in Italy - EE403/0900  8…