ACL 207 Series Brass Solenoid Valve, Servo-Assisted Diaphragm, 2-Way Normally Open, NBR Seal, G 3/4" Female BSPP Connection, E207EB18

Danfoss 032U7181

Danfoss EV220B (15-50 range) — 2/2-way servo-operated solenoid valve, brass body, NO version

Danfoss 032U7181 (EV220B 20B G 34N NO000) — the G 3/4" BSPP brass, NBR, normally-open servo-operated valve body, supplied without a coil. Danfoss has withdrawn this code as NBR is phased out of the EV220B 15-50 range. Not an identical part. Danfoss rates 032U7181 at a 20 mm orifice and Kv 7.5 m³/h; this valve is 18 mm and Kv 5.5 m³/h, roughly 73% of the Danfoss flow at the same pressure drop — size on flow before substituting. In its favour, this valve opens from 0.15 bar differential against Danfoss's 0.3 bar, and is rated to 13 bar against the Danfoss NO body's 10 bar. Body length is 79 mm against Danfoss's 90 mm. Coil ordered separately: this valve takes a Series 3 coil, not a Danfoss one.

Parker Hannifin 7322BCN00

Parker 7322B Series — 2-way diaphragm pilot-operated solenoid valve, normally open, brass (Fluid Control Division Europe)

Parker 7322BCN00 — the 3/4" BSPP brass, NBR, normally-open pilot-operated diaphragm valve (also listed as PM143CN, and in Parker's current general catalogue as valve order number 443807W). Offered as the closest equivalent, not an identical part, and the difference is significant at this size. Parker's valve has a 20 mm orifice, a Kv of 8.40 m³/h and a maximum differential pressure of 20 bar; this valve has an 18 mm orifice, a Kv of 5.5 m³/h and a maximum differential pressure of 13 bar — about 35% less flow and about 35% less differential pressure. Parker's also opens from 0.10 bar differential against 0.15 bar here. Check both figures against your duty before substituting. It is a smaller body too: 79 mm port to port and 0.65 kg against Parker's 100 mm and 1.02 kg. Body material, BSPP port thread, NBR seal, the 90 °C NBR media limit and the normally-open function are the same on both, and both are supplied without a coil. The electrical fitting is not the same: this valve takes a Series 3 coil with a DIN 46244 (9.4 mm) plug, where the Parker coil takes a DIN 43650 form A (18 mm) plug — an existing Parker cordset will not mate, so order the coil and plug with the valve.