S.J.Industries

Our metering/dosing pumps are high precision positive displacement pumps, according to the API 675 standard for controlled volume pumping. The discharge can be varied from zero to maximum capacity while pumps are running or at rest. Our pump design makes it an ideal flow control tool in chemical process for feeding chemicals with high degree of accuracy under any discharge pressure conditions. These are of robust design, unmatched quality and offer considerable saving due to small space requirement, low installation cost, minimum maintenance etc.


Typical Characteristics

Our dosing/metering pumps have a capacity output which is digital in nature, linear in proportion to the length of the stroke and is almost independent of discharge pressure.


Pump Head Design

Plunger Pumps

Plunger type liquid-ends are suitable for non-hazardous liquids. Because of their simple design, they are quite economical. They can be provided with flushing connection. In the case of molten liquids, steam jacketed heads can be provided. The jacket encloses the check valves and gland chamber. The valves are cartridge type and can be removed for servicing without dismantling the suction and discharge connections.


Diaphragm Pumps

Diaphragm type heads are suitable for service conditions involving hazardous, toxic, radio active or poisonous liquid, where product leakage is not at all permitted. The diaphragm is hydraulically actuated and has a long life, as it is always under hydraulic balance with the liquid being pumped on one side and actuating fluid on the opposite side. The function of the diaphragm is basically that of a partition. The diaphragm material is usually teflon or synthetic rubber. The system is safe guarded by in built relief vacuum valve on the hydraulic side. For very severe duty condition or when handling slurry or hot liquids, double diaphragm and remote type heads can be provided.


Applications

Typical applications of our pumps are the accurate dosing and mixing of acids, alkalis, slurries, viscous liquids, etc. which may be pumped at elevated ambient or low temperature, twenty four hours a day. Our range covers everything from a single pump to a complete automated metering dosing system and comprising of plunger and diaphragm pumps with metering ranges from three to fifteen thousand LPH per pumps head. Pumps can be provided with up to twelve heads and all the necessary accessories can be provided with up to twelve heads and all the necessary accessories can also supplied.


Stroke Adjustment

The pump discharge is variable while pump is running or at rest from zero (0%) to full stroke by means of a precision machined crank equipped with a stroke length adjustment mechanism. The stroke of the pump can be controlled either -
Manually (local)
Automatic, electrically or pneumatically, (Remote)


Liquid End Material

Wetted parts can be offered in the following materials, which are mentioned below:

• Stainless Steel 304


• P.V.C.


• Stainless Steel 316


• P.P.


• Steel


• Teflon

Special Features

Pumps can be offered in simplex, duplex or multiple heads, (up to Twelve heads) for handling different chemicals with a common motor, Each head would have independent connections and the capacity of each head can also be independently adjustable.


Capacity:

• 0.5 to 5 HP


• 20 to 10,000 LPH


• Pressure 10 kg/cm2


• 0 to 100% stroke adjustment


• Liquid end materials available:- SS304, 316, PVC,PP and Teflon(PTFE)


• Pumps are available in simplex, duplex and multiple head


• Pumps are designed as per API 675 standard for controlled volume pumping


• Available with double diaphragms (sandwich type)