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Pump Catalog

Pump Catalog Compressors & Vacuum Pumps MB-158

MB-158

Specifications for MB-158, MB-158 E

General

Housing body Cast aluminum
Bellows AM-350 stainless steel
All other wetted surfaces 300 Series Stainless Steel except for Valve Assembly; Teflon® Valve Gaskets
Bearings Permanently lubricated ball type
Weight 14 lbs
Port connections 1/4" NPT

Electrical

Standard 115V 50/60Hz (230V 50 Hz for MB-158E)
Current at 115V/60Hz 1.4 Amps (max) (0.9 Amps for MB-158E)
Motor specification 1/10 HP
Operating speed @ 60 Hz 1700 RPM (1700 RPM for MB-158E)
Insulation Class B

Specifications for MB-158 HT

General

Housing body Nickel plated cast iron and aluminum
Bellows AM-350 stainless steel
All other wetted surfaces 300 Series Stainless Steel except for Valve Assembly; Teflon® Valve Gaskets
Bearings Permanently lubricated and shielded, heat stabilized ball type
Weight 26 lbs
Ambient temp 392°F max for pump head / 105°F max for motor
Port connections ¼" NPT

Electrical

Standard 115/230V 50/60Hz
Current at 115V/60Hz 5.4 Amps (max)
Motor specification 1/4 HP Single Phase ODP – Open Drip Proof Motor
Operating speed @ 60 Hz 1725 RPM
Insulation Class B

MB-158

Product Drawing
Senior PN: 28950, 42258

The Product Drawing for the 158 and 158E have the same dimensions for both models.

Product Options Senior PN
MB-158 – VITON VALVE 28950
MB-158 – TEFLON VALVE 42258

MB-158E

Product Drawing
Senior PN: 31184, 31184M1

The Product Drawing for the 158 and 158E have the same dimensions for both models.

Product Options Senior PN
MB-158E – VITON VALVE 31184
MB-158E – TEFLON VALVE 31184M1

MB-158HT

Product Drawing
Senior PN: 29058, 29176

Motor mounting plates are shown for dimensional purposes only. Actual motor mounting plates are located on the underside of the motor.

Product Options Senior PN
MB-158HT – HIGH TEMP, TEFLON VALVE 29058
MB-158HT – SNAP RING - O.T.S. 29176