Weir Type Diaphragm Valve

Product Item：G41W/X

Body Materials Grey Iron * Ductile Iron * Cast Steel * Stainless Steel * FeCr * Monel

Hard Rubber (Ebonite) * Soft Rubber * Butyl Rubber * Neoprene® Rubber * Hypalon® Rubber * EPDM *

Size Range DN 10 – DN 300 (3/8” – 12”)

Actuation Manual Hand wheel * Pneumatic Actuators * Electric Actuators.

Description

Weir Type Diaphragm Valves

Description:

1.Weir type diaphragm valves is ideally suited for shut-off, flow control and throttling of corrosive process media in either liquid or gaseous state.
Its main features are heavy-duty, robust construction, maintenance-free, easy replacement of components on site. Convenient, flexible and accurate open or close.
2.It can sustain any corrosive medium in addition to the molten alkali metals and fluorine elements. It is ideal products used in chlor-alkali, industrial in organic chemicals, metal and mining, nitrogen and phosphatic fertilizers, petroleum refining, pharmaceutical etc.
3.It is not applicable for diaphragm used in medium with hard particles, which will cause diaphragm damage and leakage.
4.The working temperature cannot exceed the specified range.
5.Open the diaphragm too frequent will influence the sealing performance.
6.Lining material:NR,EPDM,PFA,PTFE,F46 etc.
7.Operation methods:manual,electric, pneumatic.
8.TANA lined diaphragm valves are available as per the needs of applications in additional sizes and other than standard materials.
We offer lining materials like NR,EPDM,PFA,PTFE,F46 etc.

Temperature:

NR:≤85℃
EPDM:≤120℃
PTFE : ≤120°C
PFA: ≤120°C
Lining Thickness：Min. 3.0mm

Specification:

Body Material:Cast Iron,Ductile Iron, A216/WCB, A351/CF8,A351/CF8M,A351/CF3,A351/CF3M,LCB,
Lining Material:NR,EPDM,PFA,PTFE,F46 etc.
Diaphragm Part:NR,EPDM,PFA,PTFE,F46 etc.
Nominal Diameter: NPS 1/2"-16" DN15-400
Pressure Range: 0.6Mpa ,1.0Mpa,1.6Mpa，class150
Connection Type: Thread,Flange
Operation Method:manual,electric, pneumatic.
Suitable:≤85℃、≤100℃、 ≤120℃、≤150℃

The materials of main parts

No.	Part	Cast iron	Cast steel	Stainless steel
No.	Part	Z	C	P	R	P	R
1	Body/Bonnet	HT250	WCB	CF8	CF8M	CF3	CF3M
2	disc/stem	35	1Cr13	1Cr18Ni9Ti	1Cr18Ni12Mo2Ti	00cr18Ni10	00Cr17Ni14Mo2
3	lined/seat	PTFE(F4),FEP(F46),PFA
4	diagram	FEP(F46),PFA,EPDM
5	yoke	WCB			CF8	CF8
6	Stem nut	ZCuAI10Fe3			ZCuAI10Fe3	ZCuAI10Fe3
7	bolt	35			1Cr17Ni2	1Cr18Ni9Ti
8	nut	45			0Cr18Ni9	0Cr18Ni9
9	handwheel	WCB			WCB	WCB