Buy Welch vacuum pumps from MSE Supplies at the best value.

DuoSeal vacuum pumps are the vacuum pumps of choice for large chiller service. These HVAC vacuum pumps have large oil reservoirs to dilute contaminants. Low pump rpm to reduce friction and wear while minimizing reservoir temperature to lessen chemical reactivity. Pump can be ordered with an optional exhaust filter to control oil mist.

MSE Supplies is an authorized distributor of Welch vacuum pumps.

Product Details

Deep vacuum for fast evacuation and dehydration
Ultimate vacuum <0.001 Torr
Low RPM for long service life

Application

HFO & HFC Systems
Ammonia Chillers
Refrigeration System
Component Manufacturing
Lithium Bromide Absorption
Commercial / Industrial Chillers
Cold Storage
Rooftops / RTU's

Additional information found here.

SKU#	VP0028
Welch Model	CRR-1
Free Air Displacement @60Hz, cfm (L/min)	10.6 (300)
Ultimate Pressure, Torr	3 x 10⁻⁴ (0.04)
Oil Capacity in Qts.	2.5
Motor Horsepower (watts)	1(750)
Adjustable Vac. / Gas Ballast	yes
Power Option	115V 60Hz (Motor is not included, additional cost applies)
Exhaust Thread NPT	1" NPT
Intake Thread NPT	1" NPT
Overall Dimensions LxWxH in. (cm)	19.25 x 12.3 x 11.1 (49x31x28)
Ship Weight, lbs (kg)	136 (61.8)
Shipping Carton Dimensions LxWxH in. (cm)	22x15x18 (56x38x46)

Welch CRR-1 repair kits are available here at MSE supplies.