Air operated diaphragm pump

Design standard:Q/WKS 03-2009 ATEX Certification Nominal diameter:1/2"-4" Pressure:7Bar

Articles in the following documents will become articles of this standard as quoted. For all quoted

documents with marked dates, all subsequent amendments (except print corrections) or revised versions

thereafter will not applicable to this standard. However, individual parties agreed on this standard are

encouraged to discuss on whether the latest versions of this documents are adoptable. For all quoted

documents without date marking, the latest versions will be applicable to this standard

ATEX Directive 94/9/EC

EN 13463-1 Non-electrical equipment for potentially explosive atmospheres Part 1: basic

method and requirements (corrigendum AC:2002 Incorporated)

EN 13463-5 Non-electrical equipment intended for use in potentially explosive atmospheres

Environment Conditions

Design Temperature: 4°C~40°C;

RH: 5%~90%;

Atmospheric pressure: 86kPa~106kPa.

Available Zone:Zone 1 and Zone 2 for gas environemnt, Zone 21 and Zone 22 for combustible dust environment.

Example for marking for gas and dust atmosphreres II 2 GD c

Use Requirements

Suitable medium: water, oil, waste water and other non-ignition liquid.

Max surface temperature :II G:T6= 85°C. II D:40°C

Body:Cast lron.

Diaphragm:Teflon.

Seat:Teflon.

Ball:Teflon.

Air operated diaphragm pump