Wilden Pump & Engineering Co. - Manufacturer of air-operated double-diaphragm pumps.

X Pumps

Atex Pumps

It is only natural that the worldwide leading producer of air-operated, double-diaphragm pumps complies with the ATEX 95 directive for explosive atmospheres. The European community and their safety are of utmost importance to us. We take responsibility for not only our product, but also for the supporting documentation and compliance of necessary directives. Wilden is proud to introduce our metallic X pumps that comply with ATEX 94/9/EC Group I, category M2 and Group II, category 2 zones G & D. Our plastic X pumps comply with ATEX 94/9/EC Group II, category 2, zone G.

Pro Flo® Series

Wetted Components: Aluminum, ductile iron, 316 SS, alloy C
Center Block: Polypropylene
Air Valve: Polypropylene
Diaphragms: Conductive EPDM, conductive buna & PTFE with conductive EPDM back-up o-ring,
Sizes: 6 mm (1/4”), 13 mm (1/2”), & 25 mm (1”)

Pro Flo V™ Series

Wetted Components: Aluminum, 316 SS, & alloy C
Center Block: Aluminum, & 316 SS
Air Chambers: Aluminum, & 316 SS
Air Valve: Aluminum, & 316 SS
Diaphragms: Conductive EPDM, conductive buna & PTFE two piece with conductive EPDM back-up
Sizes: 38 mm (1-1/2”), 51 mm (2”), & 76 mm (3”)

Pro Flo X™

Wetted Components: Aluminum, ductile iron, 316 SS, alloy C
Center Block: Aluminum, nickel plated aluminum
Air Valve: Aluminum, nickel plated aluminum
Diaphragms: Conductive EPDM, conductive buna & PTFE two piece with conductive EPDM back-up
Sizes: 38 mm (1-1/2”), 51 mm (2”), & 76 mm (3”)

ATEX Retrofit kits

Accommodates Accu-Flo™, Turbo-Flo™, Pro-Flo®, and Pro-Flo V™ ADS
Electrically statically dissipative (EDS) materials and construction
Elastomer options: Conductive EPDM, PTFE two piece with conductive EPDM back up diaphragm, Conductive Buna
Special ATEX marking indicating suitable ATEX categories where pump can be installed

TURBO-FLO™ & ACCU-FLO™ Series

Wetted components: aluminum, cast iron, 316 SS, & Alloy C
Metal center block: aluminum & 316 SS
Metal air chambers: aluminum, mild steel, 316 SS & cast iron
Metal air valve: brass & 316 SS (Turbo-Flo™) or aluminum (Accu-Flo™)
Diaphragms: Conductive Nordel®, two-piece PTFE with conductive Nordel® back-up, or Tetra-Flex™ PTFE one-piece laminated
(conductive Nordel® backing)
Sizes: 25 mm (1"), 38 mm (1 1/2"), 51 mm (2"), 76 mm (3"), & 102 mm (4")inlet Original™ series

UNITEC™ Series

Wetted components: conductive polyethylene & conductive PTFE
Airside components: conductive polyethylene & conductive PTFE
Internal air valve: polyethylene
Diaphragms: Conductive Nordel® and PTFE one-piece laminated
with conductive Nordel®
UX Sizes: 10 mm (3/8"), 13 mm (1/2"), 19 mm (3/4"), & 32 mm (1 1/4")
UA Sizes: 6 mm (1/4"), 10 mm (3/8"), 13 mm (1/2"), 25 mm (1"), 38 mm (1 1/4") & 51 mm (2")

Roles & Responsibilities

Safety in potentially explosive areas can only be guaranteed by a close and effective working relationship amongst all parties involved. The operator is responsible for the safety of his equipment. It is his duty to judge where there is a risk of explosion and then divide areas into Zones accordingly. He must ensure that the equipment is installed in accordance with regulations and is tested before initial use. The equipment must be kept in a fit state by regular inspection and maintenance. The installer must observe the installation requirements and select and install the equipment correctly for its intended use. Manufactures of explosion protected apparatus are responsible for applicable testing, certification, and documentation and are required to ensure that each device manufactured complies with design tested.

ATEX 94/9/EC Certification Individual Classifications Based Upon Application

Equipment-Groups (Annex I of the EC-Directive 94/9/EC)

Wilden's metallic X pumps comply with ATEX 94/9/EC Group I, category M2 and Group II, category 2 zones G&D. Wilden's plastic X pumps comply with ATEX 94/9/EC Group II, category 2, zone G.

Note: Compliance with Group II ,category 2 automatically includes compliance with Group II category 3. X pumps feature a proper and specific grounding point.