fluorine-lined pneumatic diaphragm valve

Shanghai Zhouteng Pump Valve Manufacturing Co., Ltd.

Contact Info

Room 322A, Building 3, No. 900 Lanfeng Road, Fengxian District, Shanghai,
刘海辉
17092113333

I. Introduction:
The G641F4 lined pneumatic diaphragm valve is specially designed for controlling non-corrosive or general corrosive media. The inner cavity of the valve body can be either unlined or lined with various optional rubbers, making it suitable for different working temperatures and fluid pipelines. The diversity of lining materials enables it to adapt to various media and provides excellent corrosion resistance. The valve body and bonnet are separated by a diaphragm, which protects the bonnet and stem parts above the diaphragm from media erosion. The diaphragm valve is a special type of stop valve. The valve body and bonnet are separated by a diaphragm, which protects the bonnet, stem and other parts above the diaphragm from media erosion; the diaphragm is replaceable, resulting in low maintenance costs. As the diaphragm serving as the actuator is prone to fatigue fracture due to frequent opening and closing, it should be replaced regularly according to the working conditions and media characteristics. The elastic sealing disc ensures no internal leakage. The streamlined flow path reduces pressure loss, and there is no stuffing box, thus eliminating external leakage.

II. Features:
1. Elastic sealing disc ensures no internal leakage;
2. Streamlined flow path reduces pressure loss;
3. No stuffing box, thus eliminating external leakage;
4. The valve body and bonnet are separated by a diaphragm, which protects the bonnet, stem and other parts above the diaphragm from media erosion;
5. The diaphragm is replaceable, resulting in low maintenance costs;
6. The diversity of lining materials enables it to adapt to various media, and it has the characteristics of high strength and excellent corrosion resistance.

III. Parts Materials:
Valve body: Cast iron, ductile iron, carbon steel, stainless steel
Bonnet: Cast iron, ductile iron, carbon steel, stainless steel
Lining: Unlined, rubber
Diaphragm: Rubber
Disc: Cast iron
Stem: Carbon steel, stainless steel
Handwheel: Cast iron

IV. Performance Specifications:

Model	Nominal Pressure PN (Mpa)	Test Pressure PS (Mpa)		Applicable Media	Working Temperature (℃)
Model	Nominal Pressure PN (Mpa)	Shell Test	Seal Test	Applicable Media	Working Temperature (℃)
EG41J-6	0.6	0.9	0.66	W. Non-corrosive fluids J· General corrosive fluids FS. Strong acids, alkalis and various organic solvents (excluding molten alkali metal elements and oxygen)	≤100 ≤85 ≤150
EG41J-10	1.0	1.5	1.1
EG41J-16	1.6	2.4	1.76
G41J-6	0.6	0.9	0.66
G41J-10	1.0	1.5	1.1

V. Main Dimensions and Weights:

Model	Nominal Diameter DN (mm)	Dimensions								Mass (㎏)
Model	Nominal Diameter DN (mm)	Type J	Type W	f	D1	D	D0	n-d	H	Mass (㎏)
EG41J-16 EG41W-16 EG41FS-16	20	121	117	2	75	105	70	4-14	92	3
	25	131	127	2	85	115	83	4-14	96	4
	32	150	146	2	100	140	114	4-18	131	6.5
	40	163	159	2	110	150	114	4-18	142	7.5
	50	194	190	2	125	165	150	4-18	167	10.5
	65	220	216	2	145	185	165	4-18	203	17.5
	80	258	254	2	160	200	230	8-18	216	25
	100	309	305	2	180	220	280	8-18	270	36
	125	362	356	3	210	250	280	8-18	319	47
	150	412	406	3	240	285	368	8-22	365	73
	200	529	521	4	295	340	483	8-22	462	142
	250	641	635	4	350	395		12-22
	300	757	749	4	400	445		12-22
EG41J-10 EG41W-10 EG41FS-10	20	121	117	2	75	105	70	4-14	92	3
	25	131	127	2	85	115	83	4-14	96	4
	32	150	146	2	100	140	114	4-18	131	6.5
	40	163	159	2	110	150	114	4-18	142	7.5
	50	194	190	2	125	165	150	4-18	167	10.5
	65	220	216	2	145	185	165	4-18	203	17.5
	80	258	254	2	160	200	230	8-18	216	25
	100	309	305	2	180	220	280	8-18	270	36
	125	362	356	3	210	250	280	8-18	319	47
	150	412	406	3	240	285	368	8-22	365	73
	200	529	521	4	295	340	483	8-22	462	142
EG41J-6 EG41W-6 EG41FS-6	125	362	356	3	210	250	280	8-18	319	47
	150	412	406	3	240	285	368	8-22	365	73
	200	529	521	4	295	340	483	8-22	462	142
	250	641	635	4	350	395		12-22
	300	757	749	4	400	445		12-22

	Machinery & Equipment/Valves/Diaphragm Valves

Shanghai Zhouteng Pump Valve Manufacturing Co., Ltd.

刘海辉

17092113333