Rotor-shielded hot water circulating pump

Identification Code : e.g：WRS20/6-130 WRS Rotor-shielded hot water circulating pump 20 Connection size 6 Rated shut-off head[m] 130 pump body length Fields of Application ：    Central heating installations    Industrial circulating systems    circulation systems Technical Data ： suitableFluids   Heating water to VDI 2035   Water/glycol mixtures max mixing ratio 1：1 Hydraulic corrections required for mixing ratio above 20% Performance   speed range 1100-2200 r.p.m Manual 3-speed control   Fluid temperature range -10℃~+110℃ ing pressure 10 bar Ambient temperature   Permissible up to 40℃ power   Mains power 1~230V, 50/60Hz Motor   Degree of protection IP 42 Insulation class F Construction Materials   Pump body cast iron/brass Impeller GF-PP shaft stainless steel Bearings graphite