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V4 Submersible Pumps Design Single or multistage centrifugal pumps in pump shroud or in ring section design. Radial or mixed flow hydraulic systems; Suction casing fitted between motor and pump. A suction casing is fitted between the pump & motor. Suction casing is fitted with strainer to protect the pump from coarse particles / sand in the fluid. Pumps with check valve (non-return valve) in option are supplied. Available with threaded particularly suitable for vertical installation in narrow deep wells. Additional bearings are fitted depending on the number of stages. Stainless Steel inserts are fitted to the impeller. The impeller hub is protected by stainless Steel inserts are fitted depending on the number of stages. Stainless steel inserts are fitted to the impeller. The impeller hub is protected by stainless steel inserts. This design improves the starting torque & has the effect that solid particles such as sand are propelled outside.

Optional Features Of V4 Submersible Pumps PUMP Stainless Steel diffusers & impellers. Brass Outlet & suction bracket. Stainless Steel 304/316 outlet & suction bracket. MOTOR Stainless Steel 304/316 upper & lower housing, motor base. Brass upper & lower housing, motor base. Different voltages and frequencies. NEMA couplings

Material of Construction - V4 Submersible Pump

Name of Parts	Material Used
Impeller/Diffuser	Noryl
Pump Shell	Stainless Steel
Bearing Bush	Rubber / Bronze
Pump Shaft	Stainless Steel 410
Hardware	Stainless Steel.304

Material of Construction - V4 Submersible Pump Motor

Name of Parts	Material Used
Shaft	Stainless Steel 431
Bearing Bush	Bronze
Thrust Bearing	Stainless Steel 304 & Engineering Plastic
Lower & Upper Housing	C. I. / Brass
Stator Shell	Stainless Steel
Hardware	Stainless Steel 304

Submersible Pump

Single or multistage centrifugal pumps in Radial or Mixed Flow hydraulic systems. Stage casings of radial pumps are connected by metal straps; those of mixed flow pumps by stud bolts. A suction casing is fitted between the pump & motor. Suction casing is fitted with strainer to protect the pump from coarse particles/ sand in the fluid. Pumps with check valve (non-return valve) in option are supplied. Threaded or flanged end is an option. Additional bearings are fitted depending on the number of stages. Stainless Steel inserts are fitted to the impeller. The impeller hub is protected by stainless steel inserts. This design improves the starting torque & has the effect that solid particles such as sand are propelled outside.

Robust Wear Rings

Replaceable wear rings made of corrosion wear resistant metal / rubber.

Submersible Motor

Submersible water filled Rewindable motor as per NEMA standard available on request. Motors of single phase or three phases with frequency of 50 Hz are supplied with a short cable.
Tried & Tested thrust bearing	Water lubricated self aligning stainless steel / engineering plastic + Carbon thrust bearing. No maintenance design suitable for maximum load carrying capacity under continuous operation conditions. New materials combination (Stainless Steel / Carbon) for high safety factor.
Reliable Pressure Balancing System	Optimum rubber expansion diaphram design.
Dynamically Balanced Rotor	Ensures smooth running.
Wear Resistant Mechanical Seal	Long Service Life & High Operating reliability.
Winding Insulation	CU- PE material for maximum heat resistance. The stator wire of wet-end motors is made of insulated copper with a special thermoplastic PVC coating specially treated to make it extremely non-hygroscopic and provide robust electrical insulation ability.
Heavy Duty Motor Shaft	An over size motor shaft guarantees the best alignment & resistance to stress.

Bearing and Lubrication

Plain bearings are lubricated by the fluid pumped.
Depending on the number of stages, additional intermediate bearings are provided in the pump.
The axial thrust is balanced by the thrust bearing in the motor.
The hydraulic thrust is balanced by the pump’s counter thrust bearing.
High operating reliability and long service life.
Cable guard protects cables from damage and is made of stainless Steel.

# Due to continuous efforts in improvements, information furnished above is subject to change without notice


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