GRINDEX PUMPS

1. Air Valve — Water is generally used to cool the motor in a submersible pump, however there are times when a pump runs dry, damaging the pump. The Grindex Air Valve allows the pump to run dry without damage to the motor. The impeller acts like a fan and the hot air escapes through the air valve.

2. SMART™ System includes:

Phaseguard™ protects the motor against single phasing. Phase failure can cause extensive damage to a motor. Grindex Phaseguard™ will automatically shut down the pump if this occurs, thus preventing serious motor damage.

Rotasense™ controls phase sequence. Rotasense™ ensures the motor will only run in the correct direction. This unique feature eliminates overloading, low pumping capacity, and abnormal wear.

Temperature Guard™ protects the motor from overheating. Overheating can cause serious damage to a pump motor. Temperature Guard™ automatically shuts down the pump if any stator winding exceeds 266° F (130° C).

3. Aquatite — Double Mechanical Shaft Seals — Two sets of mechanical seals work independently for double security. Furthermore, the new design of the upper seal seat uses the centrifugal force of the oil to ensure that the upper seal is fully lubricated at all times.

4. Outer Casing of Corrugated Stainless Steel — The outer casings of all Grindex pumps are made from 316 stainless steel to protect the pump from corrosion. The corrugation of the outer casing adds strength and is more than twice as strong as a plain casing.

5. Adjustable Polyurethane Diffusers on the Grindex sludge pumps — Polyurethane diffusers are extremely durable and are highly resistant to abrasive materials. The diffusers are adjustable to maintain optimal pumping performance. Oil-resistant rubber diffusers are available as an option.

Polyurethane Lined Pump Housing on the Grindex drainage pumps — Highly abrasion-resistent Polyurethane lined pump housing which offers a significantly longer life than the equivalent rubber lined parts.

6. High Chromium Impellers — The impellers are made of chromium-alloyed white cast iron and have a hardness of 55 Rc. The impellers are resistant to abrasive materials such as sand, drill cuttings, clay, and grinder cuttings. Stainless steel impellers are available as an option.