Manual Rubber Diaphragm Valve

This valve is specially used to control non-corrosive or general corrosive media. The internal cavity surface of the valve is not lined or covered with various rubbers to choose from. It is suitable for different working temperatures and fluid pipelines.
Applicable temperature: ≤85℃, ≤100°℃.≤120°℃, ≤150℃ (according to lining and diaphragm material)

Main material

NO.	Name	Material
1	Body	Cast iron，Carbon steel,stainless steel
2	Bonnel	Cast iron，Carbon steel,stainless steel
3	Lining	Unlined, rubber
4	Diaphragm	Rubber
5	Valve petal	Cast iron
6	Stem	Carbon steel,stainless steel
7	Handwheel	Cast iron

Test

Lining layer	Electric spark detection
Test and inspection	BS6755
Nominal pressure	Body：PNx1.5
Nominal pressure	Seal：PNx1.1

Shape controltable

DN	Nominal pressure(Mpa)	Work pressure(Mpa)	L	D	D1	n-φ	f	H1	H2	D0	KG
15	1.6	1.6	108	95	65	4—14	2	90	99	66	2
20			117	105	75	4—14	2	93	103	66	3
25			127	115	85	4—14	2	100	112	66	4
32			146	140	100	4—18	2	127	144	96	6.5
40			159	150	110	4—18	2	136	156	96	7.5
50			190	165	125	4—18	2	151	177	118	10
65	1.0	1.0	216	185	145	4—18	2	183	213	165	16
80			254	200	160	8—18	2	198	273	230	23.5
100			305	220	180	8—18	2	266	320	280	34
125			356	250	210	8—18	3	319	386	280	44
150			406	285	240	8—22	3	380	453	368	67.5
200		0.6	521	340	295	8—22	3	506	626	400	141.5
250		0.6	635	395	350	12—22	5	598	734	500	229
300		0.4	749	445	400	12—22	5	698	778	560	321
350		0.4	787	505	460	16—22	5	723	883	560	360
400		0.25	914	565	515	16—26	5	868	1078	640	584