Description

Features:

• German-engineered and American-made diaphragm pump
• Lightweight and compact design
• Compatible with all Apex Instruments sampling equipment
• Easy to attach, self-sealing EPDM tubing
• Fast and knuckle-friendly durable polypropylene shell

Specifications:

Motor: 24 BLDC (Brushless DC) KNF 838 Motor

Measured Flow: 70 LPM (2.5 CFM) at free flow, 21 LPM (0.75 CFM) at 15 inHg

Maximum Vacuum: 25.5 inHg

Weight: 16 lbs, (7.25 kg)

Special Back Half Leak Check Consideration:

For metering systems having diaphragm pumps, the normal leak-check procedure will not detect leakages within the pump. For these cases, the following leak-check procedure is suggested: make a 10-minute calibration run at 0.00035 cubic meters per minute (0.02 cubic feet per minute); at the end of the run, take the difference between the measured wet test meter and the dry gas meter volumes; divide the difference by 10, to get the leak rate. The leak rate should not exceed 0.00057 cubic meters per minute (0.02 cubic feet per minute). [Section No. 3.4.2, Page 5 of 22, Quality Assurance Handbook by EPA, 1980 Version]