Item # VLR 251, Claw Vacuum Pump On Compressed Air Systems, Inc.

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	Item # VLR 251, Claw Vacuum Pump
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Heavy duty dry running vacuum pumps designed for continuous operation. All models utilize a dual shaft design with oversized double bearing support and our advanced multi-claw rotor design. Standard equipment includes vacuum regulator (fixed vacuum relief valves on the models.

Inlet filter (VLR-60/251), inlet screen (VLR-100/150/301/401/501/1000), sound attenuating enclosure cover and exhaust silencer. The VLR-301/401/501 have an inlet check valve as standard.

Explosion Proof motors available.

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Financing · Specifications · Note

Financing

Approve Payments		Finance with Approve Payments

Specifications

Dimension a at 50 Hz		31.73 in

Dimension a at 60 Hz		35.43 in

Dimension a¹ at 50 Hz		19.13 in

Dimension a¹ at 60 Hz		19.92 in

Dimension b		28.43 in

Dimension c		20.67 in

Dimension d		3.94 in

Dimension e		28.35 in

Dimension f		11.42 in

Dimension G		19.41 in

Dimension H		9.45 in

Dimension l		9.25 in

Dimension m		13.39 in

Dimension r		4.37 in

Dimension u		1.57 in

Diameter w at 50 Hz		8.66 in

Diameter w at 60 Hz		9.57 in

Dimension z¹		39.37 in

Dimension z²		3.15 in

Dimension z³		10.63 in

Dimension R		2 in

Thread Type		National Pipe Thread (NPT)

Capacity at 50 Hz		138 ft³/min

Capacity at 60 Hz		150 ft³/min

Maximum Ultimate Vacuum Gauge Pressure		38 Torr 28.44 inHg

Ultimate Vacuum Gauge Continuous Operation		150 Torr 24.0 inHg

Motor Voltage at 50 Hz		230 V 400 V

Motor Voltage at 60 Hz		208 to 230 V 460 V

Motor Tolerance		±10 %

Motor Rating at 50 Hz		4.0 kW

Motor Rating at 60 Hz		7.5 hp

Full Load Amperage at 50 Hz		8.3 A 14.4 A

Full Load Amperage at 60 Hz		9.4 A 18.8 to 21 A

Speed at 50 Hz		2850 rpm

Speed at 60 Hz		3450 rpm

Average Noise Level at 50 Hz		78 dBA

Average Noise Level at 60 Hz		82 dBA

Weight at 50 Hz		386 lb

Weight at 60 Hz		430 lb

Gear Oil Capacity		0.9 L

Non Return Valve (ZRK)		50 (03)

Suction Filter (ZAF)		50 (53)

Brands		Zephyr

Note

Relates to pump inlet conditions

Curves and tables refer to vacuum pump at normal operating temperature.

Technical information is subject to change without notice.

The listed values for a, ø w and full load amperage may vary because of different motor manufacturers.

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		Finance with Approve Payments

Item # VLR 251, Claw Vacuum Pump

Approve Payments

Dimension a at 50 Hz

Dimension a at 60 Hz

Dimension a1 at 50 Hz

Dimension a1 at 60 Hz

Dimension b

Dimension c

Dimension d

Dimension e

Dimension f

Dimension G

Dimension H

Dimension l

Dimension m

Dimension r

Dimension u

Diameter w at 50 Hz

Diameter w at 60 Hz

Dimension z1

Dimension z2

Dimension z3

Dimension R

Thread Type

Capacity at 50 Hz

Capacity at 60 Hz

Maximum Ultimate Vacuum Gauge Pressure

Ultimate Vacuum Gauge Continuous Operation

Motor Voltage at 50 Hz

Motor Voltage at 60 Hz

Motor Tolerance

Motor Rating at 50 Hz

Motor Rating at 60 Hz

Full Load Amperage at 50 Hz

Full Load Amperage at 60 Hz

Speed at 50 Hz

Speed at 60 Hz

Average Noise Level at 50 Hz

Average Noise Level at 60 Hz

Weight at 50 Hz

Weight at 60 Hz

Gear Oil Capacity

Non Return Valve (ZRK)

Suction Filter (ZAF)

Brands

Maintain Your Air Compressor

Dimension a¹ at 50 Hz

Dimension a¹ at 60 Hz

Dimension z¹

Dimension z²

Dimension z³