Polyquip

The Horizontal pumps manufactured are of moulded constructions in P.V.D.F. or Polypropyelene for HCL, HF, H2SO4 etc. The Impeller is fixed on the shaft threading and is provided with suitable sleeve/ extensions in Hastelloy-C, Glass filled Teflon, Alloy-20 etc, suiting the chemical. A positive and reliable shaft sealing is provided to ensure that the liquid does not enter in between the shaft and the sleeve and corrode the non wetted parts easily. The pumps are with Grafoil gland packing or an appropriate Mechanical seal, of generally Sealol Hindustan make. The Bearing Block Adaptor is a separate piece and is made of Glass filled Polypropylene to avoid effect of the corrosion due to liquid leakage through the glands or atmospheric corrosion.

A Rotary Gear Pump works on a principle of Positive Displacement. The liquid is carried around in the space in between the gear teeth and the pump body and constantly forced out, as the teeth mesh against each other.

There are a lot of difficult applications for Viscous and difficult to flow liquids, where normal centrifugal pumps can not be used. For such applications, positive displacement pumps are used with better efficiencies.

These pumps and spares are manufactured by San Domingos Pumps P. Ltd., Hubli.

The pumps are exactly equivalent to Akay pumps and even the spare parts can be given for Akay pumps.

The Chemical Process pumps are conforming to ASME B73.1 M and test code of BIS. Pumps cover the capacities upto 90m3/hr, head to 62 meters, temperatures from -210oC to 260oC and working pressure to 2550 kpa.

Pumps feature maximum interchangeability for minimum spare parts inventory, back-pull-out design for quick inspection or repair of the parts without disturbing electrical and piping connections. External adjustments for impeller and casing wear. Standard dimensions for pump and foundations. Self-venting casing with PN20 or PN50 flanges has maximum resistance to mis- alignment, distortion and has 3mm corrosion allowance. Semi-open impeller with back vanes is matched to casing for maximum efficiency and low NPSH. Casing and impeller have smooth contoured passages for best slurry and solids handling capacity. Casing and stuffing box can be provided with jacket for heating and cooling. Stuffing box is machined for Gland packed arrangement and mechanical seals. Bearing Assembly is oil lubricated with automatic level control,breather,magnetic drain-plug and optional jacket.

A Vertical pump is a best Self Priming pump as , the pump portion is dipped inside the liquid. It finds wide uses for effluent, acids, pickling solutions, transfer of solvents from underground storage tanks, etc.

Poly Quip offers Vertical pumps in Polypropylene, C. I., S. S.304 / S. S.316 upto 3 meters depth, Capacities upto 30m3/hr and heads upto 20 meters. The pumps run at 1440 or 3000 R. P. M. It is also given with vapour seal arrangements.

Self Priming pump developed by POLYQUIP, removes the above problems, but, can be used for clear liquids only. The pump is provided compulsorily with Mechanical seal, it does not come with Gland packing arrangements. It can take a negative suction pipe length of 3to4 meters, without foot valve. Initially, the casing only is to be filled with liquid to avoid damage to the seal due to dry running.

Self Priming pump is provided with star vane type impeller and can be used for low capacities only, upto 50 L.P.M. and heads upto 40 meters. An ideal pump for underground storage tanks, barrel emptying and other applications. The pump is available in S.S. material of construction, only.