PTFE lined diaphragm valve

DN15-DN250
PN10-PN25
Body Materials: WCB

PTFE-lined diaphragm valve

This product uses a special process to coat the valve body with PFA/FEP, and the diaphragm parts use PFA/FEP and EPDM, so that the various parts of the valve cavity can achieve the same corrosion performance. The product has good throttling characteristics, corrosion resistance and granular media properties, reliable sealing performance, and can be widely used in various corrosive fluids and fibrous and powdery media.

Size：DN15~250

Features：The diaphragm separates the inner cavity of the lower valve body from the inner cavity of the upper valve cover, so that the valve stem, valve disc and other parts above the diaphragm are not corroded by the medium, the packing sealing structure is omitted, and the medium leakage will not occur.

Technical Standard
Design	GB/T12235
Face to face dimension	HG/T3704-2003 GB12221ASME B16.10
Flange dimension	Gb/T9113.1 ANSI B16.5a
Structure Type	Wire Type, Straight Type
Drive	Manual, Pneumatic, Electric
Nominal Pressure	0.6、1.0、1.6、2.5
Test and inspection	GB/T13927-92API598

Model List
Manual	G41F4(Wire Type)	Pneumatic	G641G4 （Back and forth）
	G41F46(Wire Type)		G641F46 （Back and forth）
	G45F4 （Straight Type)		G6B45F4 （NC）
Electric	G45F46 （Straight Type)	Electric	G6B45F４６（NC）
	G9B41F4（Explosion-proof）		G945F4（Common）
	G9B41F46（Explosion-proof）		G945F46（Common）

Main Materials List

Part Name	Ductiron Iron	Carbon Steel	Stainless Steel
Part Name	QT	C	P	R	PL	RL
Body/Bonnect/Disc	QT400	WCB	CF8	CF8M	CF3	CF3M
Stem	2Cr13	2Cr13	CF8	CF8M	CF3	CF3M
Line	FEP(F46)、PTFE（F4）、PFA、PO、PE
Diaphragm	ZcuA110Fe3
Stem Nut	FEP(F46)、CR、PFA、FPDM
Bolt	35	35	1Cr17Ni2	1Cr17Ni2	1Cr18Ni9	1Cr18Ni9
Nut	45	45	0Cr18Ni9	0Cr18Ni9	0Cr18Ni9	0Cr18Ni9
Handwheel	A3