Handle Flange Center Line Butterfly Valve

short description:

Shandong Ronborn Machinery Technology Co.,Ltd, with professional factory, is one of the leading China cast iron butterfly valve manufacturers, we are able to offer you cheap cast iron butterfly valve. Welcome to wholesale products from us.

Features
1, Small in size&light in weight and easy installation and maintenance. It can be mounted wherever needed.
2, Simple, compact structure, quick 90°degree on-off operation.
3, Disc has two-way bearing, perfect seal,without leakage under the pressure test.
4, Flow curve tending to straight-line. Excellent regulation performance.
5, Various kinds of materials, applicable to different medium.
6, Strong wash and brush resistance, and fit to bad working condition.
7, Center plate structure, small torque of open and close.
8, Long service life. Standing the test of ten thousands opening and closing operation.
9, Can be used in cutting off and regulation medium.

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Product Detail

Product Tags

The butterfly valves are made by highly machined with great performance. It can be equipped with handle, manual worm gear driving device, electric device and pneumatic device according to customer requirements.

Components and Materials

No.	Name	Materials
1	Valve Body	Ductile Iron QT450-10
2	Glue Plug	EPDM
3	Drive Shaft	2Gr13
4	Gate	QT450-10+EPDM
5	Driven Shaft	2Gr13
6	Bushing	Bronze + 304 Stainless Steel
7	Sealing Ring	EPDM
8	Handle	Ductile Iron QT450-10

Handle flange center line butterfly valve

Detailed Size of Main Parts

Handle flange center line butterfly valve
Norminal Specification	Pressure	Dimension（mm)
DN	PN	D	L	H1	H2	H3
50	10	165	108	70	125	39
	16	165	108	70	125	39
	25	165	108	70	125	39
65	10	185	112	76	143.5	39
	16	185	112	76	143.5	39
	25	185	112	76	143.5	39
80	10	200	114	94	151	39
	16	200	114	94	151	39
	25	200	114	94	151	39
100	10	220	127	108	173	39
	16	220	127	108	173	39
	25	235	127	108	173	39
125	10	250	140	127	190	39
	16	250	140	127	190	39
	25	270	140	127	190	39
150	10	285	140	139	201	39
	16	285	140	139	201	39
	25	300	140	139	201	39
200	10	340	152	175	233	39
	16	340	152	175	233	39
	25	360	152	175	233	39

Advantages

Advantages of Butterfly Valves:

1. The opening and closing of the butterfly valve is convenient and quick, labor-saving, and the fluid resistance is small, so it can be operated frequently.
2. The butterfly valve is simple in structure, small in size, short in structure length, small in size and light in weight, and is suitable for large-diameter valves.
3. The butterfly valve can transport mud, and the liquid accumulated at the mouth of the pipe is the least.
4. The butterfly valve can achieve good sealing under low pressure.
5. The regulating performance of the butterfly valve is good.
6. When fully open, the effective flow area of the valve seat channel is larger, and the fluid resistance is smaller.
7. The opening and closing torque is relatively small, because the butterfly plates on both sides of the rotating shaft are basically equal to the action of the medium, and the direction of the torque is opposite, so the opening and closing is relatively labor-saving.
8. The sealing surface material of the butterfly valve is generally made of rubber or plastic, so the low-pressure sealing performance is good.
9. The butterfly valve is easy to install.
10. The operation is flexible and labor-saving, and manual, electric, pneumatic and hydraulic methods can be selected.