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Heavy Duty Pump Screw end DEW Pump Manufacturer

Salient Features

The “ DEV” make DEW-I Series Screw end Heavy Duty Rotary Double Helical ( Herring Bone) Pump special Ball Bearing Design for liquid media Lubricating and Minerals oils . It has Max. Design Pressure is 20 Kg/cm2 . The Ball Bearings are lubricated by liquid itself.

The “ DEV” make DEW-II Series Screw end Heavy Duty High Pressure Pump has Spur type Gear Design with Special wearing plate cum Bush bearings. The Pump has Max. Design Pressure is 35 Kg/cm2 .

The Both DEW –I & DEW-II series Pump’s in three piece construction has main pump body, front cover and back cover with in-built pressure relief valve . The Shaft sealing is by Leap Seal or M. Seal fitted

These series gear pumps are available in different sizes and capacity with max. working pressure up to 35 Kg/cm2 from 05 LPM to 200 LPM with Sizes 3/8” to 2” BSP Screw End Inline Suction and delivery connections.

Technical Specification For Dew-I Series Pump

Pump Model No Pump Size Suc. X Dely BSP Screw End CAPACITY @ 1440 rpm Pressure In Kg/cm2
m3/hr LPM GPM
DEW-I-025 ¼” X ¼” 0.30 05 1.32 0-20
DEW-I -040 3/8” X 3/8” 0.60 10 1.32 0-20
DEW-I -050 ½” X ½” 0.90 15 3.96 0-20
DEW-I -075 SP ¾” X ¾” 2.10 35 9.25 0-20
DEW-I -100 1” X 1” 3.00 50 13.2 0-20
DEW-I -125 1¼” X 1¼” 4.50 75 23.4 0-20
DEW-I -125 1¼” X 1¼” 6.00 100 26.4 0-20
DEW-I -150 1½” X 1½” 7.50 125 33.0 0-20
DEW-I -150 SP 1½” X 1½” 9.00 150 39.6 0-20
DEW-I -200 2” X 2” 12.00 200 52.9 0-20
DEW-I-200 SP 2” X 2” 13.50 225 59.5 0-20

Technical Specification For Dew-II Series Pump

Pump Model No Pump Size Suc. X Dely BSP Screw End CAPACITY @ 1440 rpm Pressure In Kg/cm2
m3/hr LPM GPM
DEW-II- 040 3/8” x 3/8” 0.75 12.5 3.3 0-35
DEW-II- 050 ½” x ½” 1 18 4.4 0-35
DEW-II- 075 ¾” x ¾” 2 33.33 8.8 0-35
DEW-II- 100 1” x 1” 3 50 132 0-35
DEW-II-125 1¼”x 1¼” 5 83.3 22.0 0-35
DEW-II- 150 1½”x1½” 6 100 26.4 0-35
DEW-II-150SP 1½”x1½” 7.5 125 33.0 0-35

Materials of Constructions

S.No Part Name Std. Materials of Construction
DEW-I Series DEW-II Series
1 Pump Body Cast Iron Cast Iron
2 Front Cover Cast Iron Cast Iron
3 End Cover Cast Iron Cast Iron
4 Gears En-8 Nitrided EN-24 Nitrided
5 Shaft En-9 H & G En-9 H & G
6 Bearings / Bush Ball Bearings Bronze / DU
7 Wear Plate Cast Iron Bronze 85/5/5/5
8 Pressure Relief Valve Std. Alloy steel Std. Alloy Steel
9 Shaft seal Oil Seal / M. Seal Oil Seal / M. Seal

Application

DEW Series Pump are for Pumping Lubricating & Mineral Oils, Fuel Oil like Furnace Oil , Heavy Furnace Oil where working / Operating pressure is required High

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