LT type butterfly valve

NegotiableUpdate on 04/06

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Nature of the Manufacturer: Producers

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Overview

Product model: D371X nominal diameter: DN40~2000mm nominal pressure: PN0.6~1.6MPa Applicable temperature: ≤ 80 ℃ Applicable medium: water, steam, oil, weak acid alkali, etc. Main materials: cast iron, carbon steel, stainless steel, etc. Drive modes: manual, worm gear, pneumatic, electric Design standards: GB/T12238-2008, ISO 10631-1994 Flange connection: GB/T17241.6-2008、JIS B2212-B2214-1999,JIS B2220-2004、JIS B2210-1984、ANSI B 16.5-2009,ANSI B 16.47-2006、ISO 7005-2 Structural length: GB/T12221-2005, IS0 5752-1988 SBSEN558-1 Pressure test: GB/T13927-2008, JB/T9092-1999, ISO 5028-1993 or BS 5755-1-1986

Product Details

Product Overview

LT type butterfly valve can be driven manually, worm gear, pneumatic, or electric. The connection method can be flange or clamp. The structural form can be single eccentric, center line, double eccentric, or triple eccentric. The sealing structure can be soft seal or hard seal, with a pressure rangePN0.1-10MPaThe nominal diameter isDN40～2000mmThe material can be cast steel or stainless steel. Due to the wide range of applications of valves, the same type of valve can have different combinations in different situations and working conditions.

Application and characteristics of LT butterfly valve
LT butterfly valve is suitable for regulating flow and intercepting media on water supply and drainage, gas pipelines in food, medicine, chemical, petroleum, power, metallurgy, urban construction, textile, papermaking and other industries. Its main features are:
1. Novel and reasonable design, unique structure, light weight, and quick opening and closing.
2. Small operating torque, easy to operate, labor-saving and skillful.
3. Can be installed in any location, convenient.
4. The seals can be replaced, and the sealing performance is reliable, achieving bidirectional sealing with zero leakage.
5. The sealing material has the characteristics of aging resistance, corrosion resistance, and long service life.
6. Simple structure, good interchangeability, and low price.
7. The valve stem seal is not easily deformed, thus avoiding the usual valve stem leakage phenomenon. Overall good support, stable and firm.
8. The amount of rubber used for the valve seat is small, and the potential impact of expansion is minimal. It is easy to control the torque value within an appropriate range using a two-piece valve stem without a pin connection. The structure is simple and compact, and disassembly is extremely convenient.
9. The butterfly plate has automatic alignment, achieving a small interference fit between the butterfly plate and the valve seat. Phenolic backrest seat has the characteristics of non detachment, tensile strength, leakage prevention, and easy replacement. Due to the integration of the sealing surface of the valve seat and the backrest, the deformation of the valve seat is reduced.

Main external dimensions and weight (PN1.0/1.6MPa)

DN(mm)	A	B	C	D1	L	n-Φ	K	E	4-Φ1	Φ2	G	Weight 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-.67	12.6	120	3.94
80	159	95	45.21	160	32	8-19	77	57.15	4-.67	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