Welch™ Self-Cleaning Vacuum System

Catalog No.	Amperage	Frequency	Model	Voltage
01-257-121	1.5 A	60 Hz	2027	115 V
01-257-120	1.5 A	50 Hz	2026	115 V
01-129-19	1.5 A	60 Hz	2025	115 V

Catalog No. 01-257-121 Supplier Welch™ Supplier No. 202701

Description

Complete oil-free dry vacuum systems for rotary evaporators and concentrators

Corrosion-resistant PTFE diaphragm vacuum systems enable superior evaporation control and efficiency. Preserve your sample and your time with rapid, controlled solvent stripping from flasks up to 5L. Use 2 torr models for fast stripping of DMF.

Programmable Model 2028 enables walk-away control for up to five vacuum / time methods for 2 solvent samples.

 

• Automatic self-cleaning purge maintains efficiency, extends diaphragm life
• Free air displacement: 35 L/min (1.2 CFM)
• Incremental ballast switch enables fast response to bumping/foaming
• Inlet and exhaust separators protect pump and lab air from contaminants
• Select 9 torr model for atmospheric B.P to 120°C; 2 torr model to B.P. 160°C

 

Order Info

Dimensions: 13.62L x 12W x 11.3 in. H (34.5 x 30.5 x 28.1cm). Net weight: 30 lb. (13.6kg)

Certifications

CE, CSA

Specifications

• Horsepower: 0.2 hp
• Shipping Weight (English): 36 lb.
• Shipping Weight (Metric): 16.4 kg
• Amperage: 1.5 A
• Certifications/Compliance: CE, CSA
• Electrical Requirements: 115V 60 Hz
• Material: PTFE
• Model: 2027
• Weight (English): 30 lb.
• Weight (Metric): 13.6 kg
• Flow Rate: 35 L/min.
• For Use With: Filtration, vacuum ovens, aspiration, chamber roughing
• Frequency: 60 Hz
• Overall Height (English): 11.3 in.
• Overall Height (Metric): 28.7 cm
• Overall Length (English): 13.6 in.
• Overall Length (Metric): 34.5 cm
• Overall Width (English): 12 in.
• Voltage: 115 V