Pneumatic double-clip type Butterfly valve

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詳情介紹

product description

Overview of pneumatic butterfly valve products

Sandwich type pneumatic butterfly valve, 90° rotary switch easy, reliable sealing, long service life, is widely used in water plants, power plants, steel mills, paper, chemical, food and beverage systems such as water supply and drainage, as a regulation and cut-off use.

Two, pneumatic butterfly valve features

1, the valve adopts a double eccentric structure, with the sealing function of more close more tight, reliable sealing performance.

2. The sealing auxiliary material is matched with stainless steel and nitrile oil-resistant rubber, which has a long service life.

3, the rubber sealing ring can be located on the valve body, can also be located on the butterfly plate, can be applicable to different characteristics of the medium, for users to choose.

4. The butterfly plate adopts frame structure with high strength, large flow area and small flow resistance.

5, the overall paint, can effectively prevent corrosion and as long as the replacement of sealing seat sealing material, can be used in different media.

6, the valve has a two-way sealing function, installation is not controlled by the flow of media, also not affected by the space position, can be installed in any direction.

7, the valve structure is unique, flexible operation, labor saving, convenient.

Three, the main technical parameters of pneumatic butterfly valve

DN（mm)	50～2000		50～1600
PN（MPa)	0.6	1.0	1.6
Seal test(MPa)	0.66	1.1	1.76
strength test(MPa)	0.9	1.5	2.4
applicable temperature	Nitrile rubber: -40℃ ~ 90℃ fluorine rubber: -20℃ ~ 200℃
applicable medium	Water, air, natural gas, oil and weak corrosive fluids
leakage rate	Comply with GB/ t13927-92 standard
drive mode	Worm gear drive, electric, pneumatic, hydraulic

Four, pneumatic butterfly valve main parts and components materials

name of parts	materials
valve body	WCB、QT450-10、HT200、HT250
Butterfly Plate	WCB、QT450-10、HT200、HT250
valve shaft	2Cr13
seal ring	Nitrile oil resistant rubber
padding	Expanded graphite

Five, pneumatic butterfly valve implementation standard

manufacturer's standard	GB/T 122387-89
Flange standard	GB9113-2000、GB17241.6-1998
Structural length standard	GB12221-89
inspection standard	GB/T 13927-92

Six, pneumatic butterfly valve main shape connection size unit: mm

DN	L	H	HO	A	B	0.6MPa		1.0MPa		1.6MPa
DO	n-d	DO	n-d	DO	n-d
50	43	63	315	180	65	110	4-14	125	4-18	125	4-18
65	46	70	330	180	65	130	4-14	145	4-18	145	4-18
80	46	83	390	245	72	150	4-18	160	8-18	160	8-18
100	52	105	431	240	72	170	4-18	180	8-18	180	8-18
125	56	115	455	240	72	200	8-18	210	8-18	210	8-18
150	56	137	626	350	93	225	8-18	240	8-22	240	8-22
200	60	164	720	350	93	280	8-18	295	8-22	295	8-22
250	68	206	800	550	350	335	12-18	350	12-22	355	12-26
300	78	230	860	600	350	395	12-22	400	12-22	410	12-26
350	78	248	883	600	350	445	12-22	460	16-22	470	16-26
400	102	289	972	600	350	495	16-22	515	16-26	525	16-30
450	114	320	1043	750	350	550	16-22	565	20-26	585	20-30
500	127	343	1098	750	380	600	20-22	620	20-26	650	20-33
600	154	413	1236	750	380	705	20-26	725	20-30	770	20-36
700	165	478	1431	750	380	810	24-26	840	24-30	840	24-36
800	190	525	1488	750	380	920	24-30	950	24-33	950	24-39
900	203	620	1615	1250	380	1020	24-30	1050	28-33	1050	38-39
1000	216	725	1765	1500	580	1120	28-30	1160	28-36	1170	28-42
1200	254	780	1976	1500	580	1340	32-33	1380	32-39	1390	32-48