Danfoss EVRC bi-flow solenoid valve

The Danfoss EVRC is a bi-flow solenoid valve: a servo operated diaphragm EVR with a built-in check valve. During refrigeration it works as a normal solenoid valve. When de-energized, it stops the refrigerant only in the normal flow direction; in the reverse direction it lets liquid through. It is used in the liquid lines of reversible systems such as heat pumps, and for reverse hot gas defrost, where it lets the condensed liquid return to the liquid manifold. During defrost, its coil must stay energized.

Three sizes, normally closed, solder: EVRC 6 (3/8″), EVRC 15 (5/8″) and EVRC 20 (7/8″). The valve body is sold without coil.

The models

NC = normally closed (closed with coil de-energized), NO = normally open (open with coil de-energized). Valve bodies supplied without coil. Kv given in the arrow direction, then against the arrow.

Specifications

• Operation: servo operated diaphragm valve with built-in check valve. Minimum opening differential pressure 0.03 bar.
• MOPD (liquid line): 38 bar with a 10 W AC coil; 28 bar (EVRC 6) or 20 bar (EVRC 15 and 20) with a 20 W DC coil.
• Pressures: 45.2 bar maximum working pressure (solder versions); 49 bar under the PED for solder versions without manual stem.
• Media temperature: −40 to 105 °C, and up to 130 °C during defrost.
• Refrigerants: R22, R134a, R404A, R407A, R407C, R407F, R410A, R448A, R449A, R450A, R452A, R507A, R1234ze(E)… Flammable refrigerants (R290, R32, R454B…) must be checked with us for each code.
• Construction: brass body, extended copper ends on solder versions, so the valve does not need to be dismantled for brazing.
• Test magnet: any EVR NC or NO valve can also be opened or closed by hand, with the coil removed, using the Danfoss 018F0091 magnet.

Coil

The valve body is sold without coil. EVR valves take the Danfoss clip-on coils: the standard coil is the BE230AS (018F6701, 230 V AC, IP67 terminal box), as given in the Danfoss data sheet. The maximum opening differential pressure (MOPD) depends on the coil: the values given here are those of the Danfoss data sheet, with a 10 W AC or 20 W DC coil. For an ATEX zone, see the BV024A coil.

All sizes are listed in our Danfoss EVR v2 solenoid valve range, with a selection table.

Afric Froid, your Danfoss supplier

Afric Froid supplies Danfoss solenoid valves, coils and valves, installs them and provides after-sales service in Tunisia, Algeria, Senegal and Ivory Coast. Tell us the refrigerant, the capacity and the line (liquid, suction or hot gas): we will choose the right valve and coil and send you a quote.