Wafer Centre-line Butterfly Valve( Worm Gear )

Technical Parameters

Fluid medium： Water, oil, gas and various corrosive media
Temperature Range： -10℃～120℃
Pressure Ratings： PN1.0～1.6MPa
Size Range： DN50～DN1200
Connection Type： Double folder
Connection standard： GB·ANSI·DIN·API·ISO·BS
Body Materials： Cast iron；Ductile iron；Carbon steel；Stainless stee；Aluminum bronze
Valve seat material： Rubber
Valve plate material： Stainless steel；Aluminum bronze；Ductile iron
Note： All parts can be made of different materials according to actual working conditions.

Product Details

Technical Standard

1.Device for regulating or cutting off medium in pipeline.
2.Suitable for handle control device (DN50~300), worm gear, electric and pneumatic control device.
3.Design and manufacturing standards comply with API 609.
4.Pressure test is in accordance with API 598.
5.The structure length is in accordance with API 609.
6.Side flange standard in accordance with GB/T17241 PN1.0MPa, PN1.6MPa and ASME B16.1 125PSI.

Product Features

1.Reduce the rotational torque, support the stem, and make it separate from the valve body effectively, reduce the wear of the valve stem.
2.After polishing treatment, with the valve seat precision.
3.To achieve zero leakage of air tightness test requirements, the opening and closing torque is small, extend the service life of the valve seat.
4.Stem seal is not easy to deform, thereby avoiding the usual stem leakage.
5.The utility model has the advantages of high precision and high strength, and is suitable for the installation of the handle and other control devices.
6.The utility model is characterized in that the valve rod and the valve plate are firmly connected with the valve plate, and the utility model has the characteristics of anti vibration and easy replacement.
7.Good integrity, easy to control the opening and closing of the valve plate.
8.The utility model has the advantages of no shedding, tensile resistance, leakage prevention and convenient replacement.
9.Device for regulating or cutting off medium in pipeline.
10.Suitable for handle control device (DN50 ~ 300), worm gear, electric and pneumatic control device.

Main overall connection dimensions（PN1.0/1.6MPa）

DN(mm)	A	B	L	D1	H4	n-Φ	K	E	4-Φ1	Φ2	G	WT（kg)
50	140	80	43	125	32	4-19	77	57.15	4-6.7	12.6	100	3.34
65	152	89	46	145	32	4-19	77	57.15	4-6.7	12.6	120	3.94
80	159	95	45.21	160	32	8-19	77	57.15	4-6.7	12.6	127	4.05
100	178	114	52.07	180	32	8-19	92	69.85	4-10.3	15.77	156	5.48
125	190	127	55.5	210	32	8-19	92	69.85	4-10.3	18.92	190	7.66
150	203	139	55.75	240	32	8-23	92	69.85	4-10.3	18.92	212	8.5
200	238	175	60.58	295	45	8-23	115	88.9	4-14.3	22.1	268	25
250	268	203	68	350	45	12-23	115	88.9	4-14.3	28.45	325	31.4
300	306	242	76.9	400	45	12-23	140	107.95	4-14.3	31.6	403	45.9
350	368	267	76.17	460	45	16-23	140	107.95	4-14.3	31.6	436	54

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