CONSTRUCTION:

Pumps of WM and WMs type are  impeller, centrifugal pumps working in “in-line” system with horizontal parting of the body. The pumps are selaed with Burgman mechanical seals. The pumps are adapted for opearting with self-suction pumps of Pa type (made in GZUT S.A.). They are driven by a 50 Hz or 60 Hz electric alternating current motor.  The electric drive is transmitted by an inseparable flexible coupling. The pumps are adapted for operating in manual or automatic control system.  The construction of the pump enables its easy disassembling without motor and pipe connections dismounting.

Pump parts being in contact with pumped medium are made (depending on ordered version) from cast iron (EN-GJL-250) or from aluminium bronze (CuAl10Fe5Ni5-C).  An impeller and its rings are made solely from aluminium bronze. A shaft is made from stainless steel type H17N2.

PUMPED MEDIUM:

WM pumps are made to pump the following mediums: fresh water, sea water and oil of viscosity up to 36,2cSt.

The maximum temperature of pumped medium:

- fresh water and oil – up to 95°C (368 K),

- sea water – up to 45°C (318 K).

APPLICATION:

In shipbuilding:

• sea and fresh water cooling systems,
• bilge systems,
• ballast systems,
• fire-fighting systems.

In land execution:

• stationary fire-fighting systems,
• public and industrial water supply,
• mining,
• power industry.

ADVANTAGES:
High efficiency, reliability, simple construction, small amount of components, easy to service.

PARAMETERS:
- capacity: Q = 25 ÷ 1000 m³/h
- delivery head: H = 20 ÷ 120 m
- maximum manometric suction head for clean water in temp. 20⁰C an atmospheric pressure 760mmHg is from 5 to 7m (depending on the pump).