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LT Type High Performance Wafer Butterfly Valve Cast Iron Zero Leakage

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LT Type High Performance Wafer Butterfly Valve Cast Iron Zero Leakage

Country/Region	china
City & Province	wuxi jiangsu
Categories	Other General Mechanical Components

Product Details

LT Type High Performance Wafer Butterfly Valve Cast Iron Zero Leakage

Structure:
A wafer butterfly valve consists of a round or disc-shaped body with a central opening and a disc or butterfly-shaped closure element inside the body. The closure element, known as the butterfly disc or wafer, is connected to a shaft or stem that extends outside the valve body. The valve body has flanges on both sides for easy installation between pipe flanges.

Operation:
The wafer butterfly valve operates by rotating the disc or butterfly element within the flow path. When the disc is in a closed position, it blocks the flow completely, and when fully open, it allows maximum flow through the valve. The disc can be positioned anywhere in between to regulate the flow rate.

Parameters:

公称通径DN		尺寸Size(mm)													重量(kg)
公称通径DN		A	B	C	D	L	H	D1	N-φ	K	E	n1-φ1	Φ2	G	重量(kg)
mm	inch	LTD71/371/671/971X-1.0/1.6
50	2’	161	80	42	52.9	32	88.39	125	4-M16	77	57.15	4-6.7	12.6	118	3.8
65	2.5’	175	89	44.7	64.5	32	102.54	145	4-M16	77	57.15	4-6.7	12.6	137	4.2
80	3’	181	95	45.2	78.8	32	61.23	160	8-M16	77	57.15	4-6.7	12.6	189	4.7
100	4’	200	114	52.1	104	32	68.88	180	8-M16	92	69.85	4-10.3	15.77	206	9.0
125	5’	216	127	54.4	123.3	32	80.36	210	8-M16	92	69.85	4-10.3	18.92	238	10.9
150	6’	226	139	55.8	155.6	32	91.84	240	8-M20	92	69.85	4-10.3	18.92	266	14.2
200	8’	260	175	60.6	202.5	45	112.89 76.35	295	8M20 12-M24	115	88.9	4-14.3	22.1	329	18.2
250	10’	292	203	65.6	250.5	45	90.59 91.88	350 355	12-M20 12-M24	115	88.9	4-14.3	28.45	393	26.8
300	12’	337	242	76.9	301.6	45	103.52 106.12	400 410	12-M20 12-M24	140	107.95	4-14.3	31.6	462	40
350	14’	368	267	76.5	333.3	45	89.74 91.69	460 470	16-M20 16-M24	140	107.95	4-14.3	31.6	515	56
400	16’	400	309	86.5	389.6	51.2 72	100.48 102.42	515 525	16-M24 16-M27	197	158.75	4-20.6	33.15	579	96
450	18’	422	328	105.6	440.51	51.2 72	88.38 91.51	565 585	20-M24 20-M27	197	158.75	4-20.6	38	627	122
500	20’	480	361	131.8	491.36	64.2 82	96.99 101.68	620 650	20-M24 20-M30	197	158.75	4-20.6	41.15	696	202
600	24’	562	459	152	592.5	70.2 82	113.42 120.46	725 770	20-M27 20-M33	276	215.9	4-22.2	50.65	821	270

Note:
DN50(2”)-600(24”) "LT" type butterfly valve is suitable for two pressure levels: PN1.0/PN1.6MPa. There are two sizes in each grid in the table, indicating PN1.0/PN1.6MPa respectively. For pressure level connection dimensions, the pipe flange connection dimensions connected to the valve refer to the flange connection dimension table. The upper flange of the butterfly valve can be universally used for manual, worm gear, electric, pneumatic and other transmission devices.

The structure, performance, and materials of parts of the "LT" type butterfly valve are the same as those of the "A" type. The difference is that the "A" type can be centrally connected between two pipe flanges through stud bolts (or extended hexagonal bolts) (i.e. clip-on type).

In addition to being connected between two pipelines through two ordinary hexagonal bolts, the "LT" type can also be installed on the pipe end (i.e. single clamp type) and used as a drain valve, but the use of the pipe end must be specified in the order contract.

The flange connection dimensions comply with G4216, DIN2501, BS4504, BS10-E, JSB2220, AS2129.ANSIB16, and other standards, and must be specified by the user in the contract.

Advantages:
Compact and lightweight design, making them easier to install and handle.
Quick and easy operation with a quarter-turn motion.
Good flow control characteristics and low pressure drop.
Cost-effective compared to other types of valves.
Suitable for various applications, including HVAC, water treatment, chemical, and industrial processes.

Applications:
Wafer butterfly valves are commonly used in applications where space and weight are constraints, such as in HVAC systems, water treatment plants, and industrial processes. They are suitable for controlling the flow of liquids, gases, and slurries in a wide range of industries.