Pneumatic lined diaphragm valve-Shen Gao Valve Group Co., LTD

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Pneumatic lined diaphragm valve

Model: G641F46
Nominal diameter: DN15 ~ 300mm
Nominal pressure: PN0.6 ~ 2.5MPa
Main material: Gray cast iron, low carbon stainless steel, carbon steel, stainless steel
Drive: electric, pneumatic, manual
Design and manufacture: BS5156
Length of the structure : BS5156

Flange connection size: BS4504, DIN2532, JIS B2212, ANSI B16.1, ISO2004

First, the pneumatic valve lined diaphragm overview

Pneumatic diaphragm valve lined by the diaphragm valve and pneumatic actuator composed of two parts, it is compressed air as a driving force, the actual flow of the medium in the process of regulating the flow of media. Pneumatic fluorine fluorine diaphragm valve due to the structure of the valve with a corrosion-resistant liner and corrosion-resistant diaphragm, no stuffing box structure, the throttle element is flexible diaphragm, valve body smooth, so the pneumatic diaphragm diaphragm valve has a negative force Small, high flow, no leakage and convenient and reliable, fire and explosion-proof advantages, pneumatic valve lined with fluorine diaphragm valve widely used in industrial automation systems of strong acid, alkali, strong corrosion, high viscosity, with grain, with fiber and toxic and Not allow pollution of the media flow regulation.

Second, pneumatic lining fluorine membrane valve main parts and materials

Serial number	Part Name	grey cast iron	Carbon steel	stainless steel		Ultra-low carbon stainless steel
Serial number	Part Name	Z	C	P	R	PL	RL
1	Body, bonnet, disc	HT250	WCB	CF8	CF8M	CF3	CF3M
2	Valve stem	35	1Cr13	1Cr18Ni9	1Cr18Ni12Mo2Ti	00Cr18Ni10	00Cr17Ni14Mo2
3	Lining layer	FEPF46, PFA (soluble polytetrafluoroethylene), PCTFE (F3), PO (polyolefin)
4	Diaphragm	FEPF46, PFA (soluble polytetrafluoroethylene), CR (neoprene), EPDM (ethylene propylene rubber)
5	Stem nut	ZcuAl10Fe3
6	bolt	35	35	1Cr17Ni2	1Cr17Ni2	1Cr17Ni2	1Cr17Ni9Ti
7	Nut	45	45	0Cr18Ni9	0Cr18Ni9	0Cr18Ni9	0Cr18Ni9

Third, pneumatic lining fluorine diaphragm valve technical parameters

Nominal diameter DN (mm)	15	20	25	32	40	50	65		80	100	125	150	200	250
Rated flow coefficient Kv	8	12	16	28	60	68	90		160	300	410	618	1200	2150
Flow characteristics	Approximate quick opening characteristics
Nominal pressure PN (MPa)	0.6, 1.0, 1.6, 2.5
Connection Type	Flange connection: PN1.0 according to JB78 standard
Equipped with actuator model	ZHA, ZHB
Effective area Fece2	280			400				600			1000
Travel Lmm	8	10		16		25			40		60
Mode of action	Qi off; open air
Spring pressure range (KPa)	Standard 20-100, optional 40-200,20-60,60-100
Supply pressure (MPa)	Standard 0.14 optional 0.24
Air source connector	M16 × 1.5
Inherent adjustable R	30: 1
Operating temperature	-30 ~ + 150 ℃

Fourth, pneumatic lined diaphragm valve main dimensions

standard value
DN (mm)	NPS (inch)	L	D	D1	D2	f	b	Z-фd	d0	H	H1	WT (kg)
DN (mm)	NPS (inch)
15	1/2	125	95	65	45	2	14	4-ф14	100	105	110	3.5
20	3/4	135	105	75	55	2	16	4-ф14	100	115	125	4
25	1	145	115	85	65	2	16	4-ф14	120	120	135	5.5
32	11/4	160	135	100	78	2	18	4-ф18	120	125	150	8
40	11/2	180	145	110	85	3	18	4-ф18	140	135	175	11
50	2	210	160	125	100	3	20	4-ф18	140	155	195	14
65	21/2	250	180	145	120	3	20	4-ф18	200	170	200	23
80	3	300	195	160	135	3	21	4-ф18	200	200	255	29
100	4	350	215	180	155	3	21	8-ф18	280	270	325	46
125	5	400	245	210	185	3	24	8-ф18	320	335	405	70
150	6	460	280	240	210	3	24	8-ф23	320	370	450	95
200	8	570	335	295	265	3	26	8-ф23	400	480	600	170
250	10	680	390	350	320	3	28	12-ф23	500	545	620	270
300	12	790	435	395	362	4	24	12-ф23	500	585	680	320

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