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Home > Air/Gas OEM Pumps > Group C&D ExProof Pumps:
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Pumps for Explosive AtmospheresQuick Question Link Search:
For ATEX Explosion-Proof Pumps ATEX
Pump Series
(Download Databook)		 Motor
Class		 Flow Rate
LPM		 Flow Rate
CFM		 Max Vacuum
(rel) in. Hg		 Max Pressure
psig
Download DATABOOK (PDF:8 mb/8pg) documents all ex-proof pumps.
Motor wiring diagrams supplement

Solid PTFE
UN726FTI (EX) C and D 17 .6 27.95 20
UN726.3FTI (EX) C and D 17 .6 29.7 -
UN726.1.2FTI (EX) C and D 30 1.1 27.95 20
UN860FTI (EX) C and D 60 2.2 27.6 15
UN860.3FTI (EX) C and D 60 2.2 29.86 15
UN860.1.2FTI (EX) C and D 110 3.9 27 15
316 Stainless Steel/PTFE
UN026STI (EX) C and D 17 .6 26.9 36
UN726STI (EX) C and D 17 .6 28.55 -
UN726.3STI (EX) C and D 17 .6 29.7 -
UN026.2STI (EX) C and D 31 1.1 26.8 29
UN035STI (EX) C and D 29.2 1.03 27 50
UN035.3STI (EX) C and D 29.2 1.03 29.5 -
UN035.1.2STI (EX) C and D 56.1 2 27 60
Aluminum
UN026ANI (EX) C and D 25 .9 26.9 36
UN726ANI (EX) C and D 20 .7 28.55 -
UN726.3ANI (EX) C and D 20 .7 29.77 -
UN026.2ANI (EX) C and D 46 1.62 27 29
Aluminum-coated with KynarŪ
UN035TTI (EX) D 32.5 1.15 27 50
UN035.3TTI (EX) D 32.5 1.15 29.5 -
UN035.1.2TTI (EX) D 62.3 2.2 27 60
Please Note: Above diaphragm pumps that conform to 94/9/EC (ATEX) Group II, Categories 2G and 3G are available .
Contact KNF applications engineers for further information on these pumps.
KNF diaphragm pumps

Shown at left is KNF's corrosion-resistant N726.3FTI with an economical Group C and D Ex-proof AC motor.
ATEX standard pumps are also available.
N860.1.2FT-EX

KNF's model N860 series solid-PTFE pumps increases the explosion-proof product range to 110 LPM (3.9 CFM). The series is available in three head configurations: single head, two-stage for deep vacuum, and parallel-head (shown at left) for high flow requirements.

These pumps reach up to 29.86 in. Hg using only two heads, saving space and power requirements.

KNF diaphragm pumps

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NOTES: Standard continuous performance ratings listed on this KNF website and on KNF datasheets are based on technical data and test results of nominal units at sea level, measured with an ambient temperature of 70°F (21°C), and nominal electrical supply as listed above, and are for reference only.Multiple-head models, different performance models, cost-effective OEM modifications, and a variety of motor options and different materials of construction are also available. Certified drawings are available upon request. Specifications subject to change without notice. You should always check corrosion resistance charts for compatibility with the medium you intend to pump.

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Trenton, New Jersey 08691-1810
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KNF diaphragm pumps