Diaphragm valve

NegotiableUpdate on 04/09

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

Diaphragm valve is a special form of shut-off valve, whose opening and closing component is a diaphragm made of soft wood material, which separates the inner cavity of the valve body from the inner cavity of the valve cover. The basic series includes G41S weir type and G45S DC type.

Product Details

Diaphragm valve--Detailed Introduction

Structural features:

① The lower valve body cavity is separated from the upper valve cover cavity by a diaphragm, so that the valve stem, valve disc and other parts located above the diaphragm are not corroded by the medium and will not leak out, eliminating the need for packing and sealing structure.
② The diaphragm made of FEP fluoroplastic and synthetic rubber composite, as well as the valve with fluoroplastic lining layer, can be applied to various highly corrosive media other than "molten alkali metals and elemental fluorine".

Execution standards:

① Design and Manufacturing: GB/T12239-89 BS 5156 JIS Standard.
② Flange size:
PN=1.0MPa according to JB/T82.1-94 (original standard JB82-59) "Convex Welding Steel Pipe Flanges".
PN=1.6MPa according to GB9113.3-88 "Convex Integral Steel Pipe Flanges".
PN=2.5MPa according to GB9113.4-88 "Convex Integral Steel Pipe Flanges".
③ The structural length shall be in accordance with GB12221-89 "Structural Length of Flanged Metal Valves".
④ Inspection and testing shall be conducted in accordance with GB/T13927-92 "General Valve Pressure Test".

Driving mode:

Manual, pneumatic, electric

Flange connected plastic lined diaphragm valve (weir type, DC type):

model	operation temperature
G41F46 G641F46 G941F46 G45F46 G645F46 G945F46	≤150℃
G41F3 G641F3 G941F3 G45F3 G645F3 G945F3	≤120℃
G41F2 G641F2 G941F2 G45F2 G645F2 G945F2	≤120℃
G41GXPP G641GXPP G941GXPP G45GXPP G645GXPP G945GXPP	≤100℃
G41GXPO G641GXPO G94GXPO G45GXPO G645GXPO G945GXPO	≤110℃
G41U G641U G941U G45U G645U G945U	≤100℃

[Printing]