Network pumps (СЭ)

Application: Pumps of СЭtype and pump units based on them of АСЭtype are designed for water pumping with temperature up to180° C in heat networks.

 

Design: network pumps СЭ – centrifugal, horizontal, spiral with casing horizontal joint, single- and double-stage with crossover pipes with double inlet impellers. Outboard rolling bearings with crankcase lubrication are rotor supports. Shaft seals – mechanical with gland packing with supply of cooling or sealing liquid (-C), interchangeable with mechanical end caps (-T).

 

Materials:

• casing, cover – castings from gray cast iron;
• impeller – casting from chrome steel 20Х13Л;
• groove seals parts – non-tearing corrosion resistant alloys;
• shaft – long steel from structural alloy steel 40Х.

 

Completeness of set:

• assembled pump with auxiliary piping within pump;
• counter-flanges on branch pipes;
• electric drive motor;
• connecting coupling of МУВП or МУП type with grating;
• protection grid;
• throttling device;
• lubrication unit (for pump units АПЭ 250 &АПЭ 270);
• overall or separate foundation frames (depending on pump typical size);
• fastening parts of pump, motor and coupling grating;
• set of spare parts.

 

Completeness of set shall be specified in purchase order.

Q-H PARAMETERS RANGE OF СЭ PUMPS:

Designation	Pumps parameters
	Supply, m3/h	Head, m	Rotational frequency, rpm	Power, kW(r=888 kg/m3)	Power, kW(r=1000 kg/m3)	Efficiency, %	NPSH, m
Pump СЭ 500-70-16-С  УХЛ4	500	70	3000	103	116	82	10
PumpСЭ 500-70-16-Т УХЛ4Pump СЭ 800-55-11-С УХЛ4	800	55	1500	131	148	81	5.5
PumpСЭ 800-55-11-Т УХЛ4Pump СЭ 800-100-11-С УХЛ4	800	100	1500	242	273	80	5.5
PumpСЭ 800-100-11-Т УХЛ4PumpСЭ 1250-70-11-С УХЛ4	1250	70	1500	255	288	83	7.5
PumpСЭ 1250-70-11-Т УХЛ4Pump СЭ 1250-140-11-С УХЛ4	1250	140	1500	510	575	83	7.5
PumpСЭ 1250-140-11-Т УХЛ4