Chemtrol Industries

Makarpura, Vadodara, Gujarat

CHEMTROL FRP Pump series in India’s FIRST standard pump design non-metallic construction i.e. FRP developed to replace conventional alloy steel, lined and plastic construction pumps. The lower RPM advantage in our anticorrosive pumps are not there since maintenance is due to corrosion and not due to normal wear and tear.  Hence the FRP pumps on 2900 RPM are most economical as compared to other on 1440 RPM.  The wetted components of these pumps viz Casing, Casin Back Cover, Impeller, Impeller nut and Gland Pusher are of solid Moulded, Joint less, Composite structures of  Fiberglass Reinforce Polyester Resin which ensure excellent resistance to corrosion and abrasion, superior impact resistance and mechanical strength.Amongst all non-metallic MOC, if we look at physical & mechanical properties, the resistance to corrosion, abrasion, temperature, mechanical strength, the superiority of FRP is proven.  Moreover FRP components at times can be repaired unlike any other plastics.  FRP is nothing but Fibreglass Reinforced Polyester Resin.  Polyester resin being used are of Vinylester grade.  Please note that polyester resin being thermo set type of plastic, these resin set permanently.  This particular parameter facilitates strength as well as durability to FRP moulded components being incorporated in our FRP moulded pumps.  We therefore strongly feel that FRP is the best corrosion resistant / reliable material amongst all plastics.  Moreover due reinforcement of Fiberglass, the mechanical strength is better than any other non-metallic material of construction. For your perusal we are enclosing herewith “Physical & Mechanical Properties” of FRP. The type of casing incorporated in our FRP pump is volute type, which is in line with the standard available for horizontal end suction centrifugal chemical process pumps.  This particular design will not be found in other non-metallic plastic pumps available in India.  The construction features of our FRP pumps can be easily compared with various Indian, as well as International standard viz. IS 1520, DIN 24256 and API 610 etc.  Since our FRP pumps have volute type of casings and there by efficiency is always better than any other casing in two halves of other non-metallic pumps supported with two metallic rings. With semi-open impeller to eliminate choking problems and with back-pull-out design to facilitate easy maintenance over and above standard gland packed pumps the mechanical seal arrangement include incorporation of one composite FRP mould  consisting Impeller, Impeller Nut and Shaft sleeve i.e. Threaded Impeller with embedded sleeve.  This particular feature renders absolutely leak-proof arrangement thereby preventing liquid penetration towards shaft.  Hence this avoids incorporation stly alloy shafts.  Moreover gland plate for holding mechanical seal is also offered in FRP construction.  Easy external adjustment of impeller providing compensation for wear and ensuring consistent performance. Low weight to dimension ratio ensuring smooth and vibration free performance even in large sizes run at high speeds. Maximum parts interchangeability reducing spares inventory. Since only one model is quoted for all parameters with parallel installations. Heavy-duty bearings provide for smooth and cool operation even at higher speeds.  The oil-sump in bearing housing is larger and stores more quantity of oil for efficient lubrication and cooling.

`Chemtrol’ VGL series features a Vertical gland less pump without stuffing box, gland seal and bearings for trouble for trouble free, leak proof and maintenance free operation for handling corrosive and reactive service conditions. A Vertical gland less pump similar in hydraulic design to any conventional centrifugal pump differs, so far as a restriction is provided to escape by way of overflow connection in the upper (rear casing) over flow chamber returning to the suction tank.  The liquid entering suction flows around Impeller casing and moves to the discharge under pressure.  Between the gap of pump casing Threaded Impeller with Shaft sleeve and a casing back cover some liquid escape to over flow chamber (Rear Casing) the rear Impeller (Expeller) with sleeve.  Prevents the liquid going further up and canalizes in through an out let in the over flow chamber (Rear Casing). All wetted components of this series pumps are joint less single composite structure of FRP (Fiber glass Reinforced in polyester Resin of Vinylester grade.)  

’Chemtrol’ VSP series pumps features a cantilevered FRP sleeved  SS316 shaft with key-way in corporate with positive locked Impeller by nut boxed with single stage volute casing.  The unique characteristic of VSP series pumps are that the casing can be roated for the choice of discharge directions,   which adds to the flexibility of installation.  Also the suction length flexibility of 300mm & 450mm are available options. Further the impeller with positive lock nut and embedded shaft sleeve does not allow the liquid vapors penetration towards shaft since the impeller nut en capsules the impeller by a step in corporate with PTFE (Teflon) Gasket. A support FRP moulded Adaptor with Flange and a robust mounting plate having a thickness of 25 MM as a support columm to the IP-55 Chemical duty flange mounted motor coated with flange having enough out let passages offers Non-mettalic solution contact, does not allow the liquid to be handled towards mounting plate.  Further the vapor seal in between motor and a pump protects the motor from damage due to Liquid / vapors. The cantilevered FRP sleeved shaft and Impeller nut do not require bearing or conventional stuffing box seals.  This facilitates dry running of pump without damage. The semi open impeller with volute type casing having contoured discharge facilitates VSP series pumps with better efficiency and low energy consumption.  

• MaterialPolypropylene
• Valve typeCheck valve (vartical installtion)
• BonnetPolypropylene
• PressuresSeat : 10 kg/sq.cm
• End connectionsFlanged
• BodysealEpdm / neoprene
• BodyPolypropylene
• Hydraulic testBody : 10 kg/sq. cm
• Bolts & nutsMs hot dippes galvanised
• BallPolypropylene
• Connection ratingAnsi b 16.5
• Ball seatEpdm / neoprene