AV-4PVD PVDF Diaphragm Valve

PVDF Diaphragm Valve Description

The PVDF diaphragm valve is suitable for the transmission of corrosion medium and the regulation of the flow and interception. The overflow components are assembled by RPP or PVDF injection parts. It has excellent corrosion resistance and lightweight is a good replacement of stainless steel valves in some cases. The sealing diaphragm of the PVDF diaphragm valve uses F46 or PFA, which can fold more than 1200 times. The screw lifting structure made the opening and closing moment is large and stable.

PVDF Diaphragm Valve Specifications

Size	DN 15-300
Working temperature	93-100°C
Body material	PVDF
Sealing material	F46/PFA
Connection	Flange

NO.	Name	Material
1	Stud	Stainless Steel
2	Indicator	Stainless Steel
3	Cover Limit	AS
4	Snap Rings	Stainless Steel
5	Handwheel	ABS
6	Pressed nut	PP-H
7	Liner ring	PTFE
8	Yoke nut	HT300/Steel copper
9	Stem	Steel
10	Bonnet	PVDF
11	Bearing	Single force ball bearing
12	Nut	Steel
13	Stud	Steel
14	Body	PVDF
15	Membrane pad	EPDM
16	Diaphragm	FEP(F46)
17	Pin	Steel
18	Disc	PVDF/ FRP/cast iron

DN	D1	D			I						H	N			O
DN	D1	HG	JIS	DIN	ANSI	HG	JIS	DIN	ANSI	kJ	H	HG	JIS	DIN	ANSI	HG	JIS	DIN	ANSI
15	95	65	70	65	50	125	110	130	110	14	125	4	4	4	4	14	15	14	16
20	105	75	75	75	70	135	120	150	120	16	145	4	4	4	4	14	15	14	16
25	115	85	90	85	80	145	130	160	130	16	148	4	4	4	4	14	19	14	16
32	135	100				160				16	165	4				18
40	145	1 10	105	110	100	180	180	200	180	16+	215	4	4	4	4	18	19	18	16
50	160	125	120	125	120	210	210	230	210	18	227	4	4	4	4	18	19	18	19
65	180	145	140	145	140	250	250	290	250	22	286	4	4	4	4	18	19	18	19
•80	195	160	150	160	152	300	280	310	280	25	300	4	8	8	8	18	19	18	19
100	215	180	175	180	190	350	340	350	340	25	407	8	8	8	8	18	19	18	19
125	245	210	210	210	216	400	410	400	410	30	417	8	8	8	8	18	23	18	19
150	280	240	240	240	240	460	480	480	480	30	576	8	8	8	8	23	23	23	22
200	335	295	290	290	298	570	570	600	570	35	628	8	12	8	8	23	23	23	22
250	395	350	355	355	362	680	680	730	680	38	776	12	12	12	12	23	23	23	22
300	455	400	400	400	432	790				40	800	12	16	12	12	23	23	23	25

PVDF Diaphragm Valve Options

Plastic pneumatic actuator

Plastic actuator body
Visual position indication
Insert/outlet stainless steel
NAMUR adaptor for solenoid valve (with adaptation for K122 and K123)
PO-NC (single acting: fail safe close), PO-NO (single acting: fail safe open), PO-DA (double acting)

PVDF Diaphragm Valve Applications

The valve body suits many mediums including hydrochloric acid, sulfate acid, hydrofluoric acid, as well as aqua regia, nitric acid, organic acids, and other organic solvents except molten alkali metals, elemental fluorine either aromatic hydrocarbons.