Union Engineering Company

We are manufacturing and supplying a wide range of air operated double diaphragm pumps which have the capability to pump various fluids like viscous fluids, corrosive fluids, abrasive fluids and other fluids which are sensitive to shear and foaming. These air operated double diaphragm pumps are self-priming and can start dry with a high suction head. The salient features are as follows:

 

• The fluids passing through a Teryair diaphragm pumps are not subjected to high forces and therefore do not foam or shear as these pumps have gentle low velocity pumping action
• No rotary components or pistons to wear out, pump efficiency generally remains constant over the life of the pump.
• Constructed with materials that do not need lubrication and the pump cannot be damaged by dry operation.
• Can handle suspended solids of considerable size for e.g. a2 pump will handle solids of up to ¼' diameter
• With proper exhaust venting to atmosphere, Teryair diaphragm pumps are submersible
• Process fluid must be compatible with material of construction.
• Simply closing the discharge valve can stop Teryair diaphragm pumps
• Even if this valve is at a distance away from the pump
• The pump stops without any further air consumption and starts again once the discharge valve is opened
• Capable of pumping at variable flow rates either by adjusting the supply air pressure or by throttling the discharge side, in both ways the energy consumption is proportional to the pumping volumes
• Ability to maintain the pump on site without even opening the foundation bolts and process piping
• The air valve and the diaphragms can be maintained and replaced easily in this way.
• Teryair diaphragm pumps do not generate much heat during operation and the air circuit through
• Helps in keeping the pump at relatively cooler operating temperatures
• This removes the possibility of ignition of solvent vapors
• Moreover as these pumps are pneumatic there is no possibility of sparking and therefore explosion proof
• The overall small size and lightweight design of Teryair diaphragm pumps makes them easy to move from job to job and install with no major concrete foundation.
• Range: From 1,2¿ to 3¿
• M.O.C.: Aluminum,S.S. ,P.P. ,C.I. etc.

We are providing our clients with centrifugal process pumps which are widely used for pumping corrosive chemicals, petrochemicals and fertilizers, thermic fluids, air conditioning, circulation and sprinkler systems, fire fighting systems and water supply. Our centrifugal process pumps can efficiently work at a temperature from 10 to 300o c. The salient features are:

• A horizontal Single stage, back pull out design as per ISO 2858
• Available in different combination of S.S. 316, Cast Iron, Cast Steel, Phosphor Bronze, Alloy 20, Haste alloy etc
• Volute Casing: One piece self venting, high efficiency, volute casing Suction and Discharge ends as well as the supporting feet are integrally cast in the volute casing.
  

Impeller

• Closed radial impeller specially designed for low NPSH requirement
• Hydraulically balanced by back vanes and for large Impeller diameters by balancing holes.
  

Shaft and Bearing

• The shaft is guided in oil lubricated bearings
• The alignment of bearing is ensured by appropriate centering and Modern Manufacturing, Methods
• Shaft is of high tensile steel and accurately grounded all over

Shaft Sealing: Supplied with either asbestos or graphite packing or M. seal depend on liquid.

• Flanges: As per ASA,Bs or DIN 2533 available.
• Capacity: Up to 500 m3,hz
• Pressure: Up to 10 kg,cm2

We are offering our clients with chemical process pumps which are horizontal single stage centrifugal pumps in stainless steel 316 and polypropylene materials. These chemical process pumps are supplied with either packing or mechanical seals in stuffing box. Moreover, external cooling is provided for longer seal life. The salient features are as follows:

Stainless Steel 316 Volute Casing

• One piece self venting volute casing with end suction and top centerline delivery branch
• Volute casing opens towards drive end to allow easy withdrawal of the bearing frame without disturbing the pipe work when using a spacer coupling and no realignment is necessary

Polypropylene Volute Casing

• Three piece with full metal back plate support self venting volute casing with companion flange end connection
• Volute casing opens towards drive end allowing easy withdrawal of the bearing frame without disturbing the pipe work when using a spacer coupling and no realignment is necessary

Impeller

• Semi open radial impeller specially designed for low NPSH requirement
• Hydraulically balance by back vanes
• Reliable fixing of impeller on the shaft by impeller nut and positive locking of impeller nut by means of threaded insert

Shaft

• Single piece heavy duty shaft in full SS 316 material
• All critical surface ground to less than 0.8 micron
• Threads where shaft screws into impeller are sealed by teflon 'o' ring

Bearings

• Inboard bearing is single row, deep groove. Outboard bearing is double row, deep groove angular contact
• Bearings is pressed on shaft and free to float axially in frame carries redial load only
• Both bearing sized are for two year minimum life.

Bearing Frame

• Sturdy cast iron construction provides rigid bearing alignment and shaft support.

Capacity

• Up to 50 m3\hz

Head

• Up to 50 mm

We are offering motorized barrel pumps which are ideal for safe and efficient handling of highly corrosive chemicals, solvents, acids, varnishes, petroleum products, diesel oils, fuel oils, plating solution and toxic chemical. These motorized barrel pumps are available in stainless steel and polypropylene materials, these eliminate danger of spillage, explosion hazards. The features are as follows:

Material of Construction:

• Stainless Steel
• Polypropylene
• Teflon
• Hasteloy-C
  

Motors:

• All Pumps are coupled to Universal motors to suit supply of 220 volts
• In case of explosion proof condition air motors are supplied which operates on compressed air of 6 kg,cm2 pressure
  

Operating Data:

• Capacity - 100 LPM Maximum
• Head - 12 Meter Maximum
• Temperature - 80oC for P.P.Pump , 120oC for S.S.Pump
• Discharge - 1" Nozzle