Detailed Description  Circulating pump Features: 1) Identification code: GR12/9G  a) WRS screwed-end pump  b) 12/connection size  c) 9 rated shut-off heads (m)  2) Technical data:  a) Suitable fluids: heating water to VD12035  b) Heating water: water/glycol mixtures max. mixing ratio: 1:1  c) Performance:  i) Fluid temperature range: -10oC - +80oC  ii) Max. working pressure: 10 bars  iii) Ambient temperature: permissible up to 40oC  d) Main power: 1 - 230V, 50Hz e) Motor: i) Degree of protection: lp44 ii) Insulation class: F  f) Construction materials:  i) Pump body: cast iron  ii) Impeller: PPO  iii) Shaft: porcelain  iv) Bearings: graphite or ceramic 3) Mounting positions:  a) Pump shaft in the horizontal plane, terminal box  b) Optional 3, 6, 9 or 12 o'clock  4) Pump equipment:  a) Screwed end single head pump  b) Manual 3-speed control  c) Non-overloading single phase motor  Pump model Power  (w) Max.flow l/min Max.head M Inlet/outlet In G.W kg GR12/9G(high) 93 30 9 3/4 3.7