Lug type wafer connection butterfly valve (center line)

Butterfly valve is with the valve stem rotation of the butterfly plate for opening and closing parts, to achieve the valve opening, closing and adjustment.

Classification:

Butterfly valve series

E-mail:

export@crnindustry.com

Key words:

Lug type wafer connection butterfly valve (center line)

I want to consult

Related Products

Product Description

Butterfly valve is with the valve stem rotation of the butterfly plate for opening and closing parts, to achieve the valve opening, closing and adjustment. Butterfly valve in the pipeline in addition to the cut-off and closure, in recent years has been the sealing performance as the main index of evaluation, favored by the market. In addition, the butterfly valve has the advantages of small size, light weight and simple structure. Compared with the gate valve with the same parameters, the average weight reduction is 30-50%, and the opening and closing process can be realized by rotating the butterfly plate by 90 °. The butterfly plate on both sides of the rotating shaft is approximately equal to the medium force, and the torque is opposite, so the opening and closing torque is small.

　　Structural features

1. The midline butterfly valve is concentric (midline) with the entire butterfly plate and butterfly seat within the 360 ° circumference, with two-way sealing function, and the pressure and flow can be adjusted freely;

2, four loading elastic seal, the absolute guarantee of the valve inside and outside the zero leakage;

A. The special transition curve at the circumferential connection of the shaft head and butterfly plate and the reasonable interference of the valve seat;

B. The end face of the shaft head adopts the combination of elastic O-ring, steel washer and elastic rubber pad at the shaft shoulder;

C. The radial direction of the shaft adopts the combination of O-ring and metal pad;

D. The valve seat is embedded in the elastic valve body groove;

3. Adjustable elastic marble positioning, accurate positioning, simple structure.

　　Key Attributes

Medium	Various concentrations of sulfuric acid, hydrochloric acid, hydrofluoric acid, organic acids and other corrosive liquid and gas medium
Valve body material	Cast iron,Cast steel,Stainless steel,Lining/F4,F46,PFA
Lining material	PTFE, PFA , FEP
Operating condition	Chemical industry, petroleum, medicine, chemical fertilizer, coal mine, etc
Origin	Jiangsu, China. Yancheng
Valve Name	Lug fluorine-lined butterfly valve (center line)
Size range	2”~24”
Pressure	CLASS 150
Temperature	≤120℃(F40) ≤150℃(F46/PTFE)) ≤180℃(PFA)
Design Criteria	API, JIS,GB, BS, DIN
Medium	Various concentrations of sulfuric acid, hydrochloric acid, hydrofluoric acid, organic acids and other corrosive liquid and gas medium
Valve body material	Cast iron,Cast steel,Stainless steel,Lining/F4,F46,PFA
Lining material	PTFE, PFA , FEP

　　Parameters

Nominal diameter		Standard value Standard value							Reference value Reference value
DN (mm)	NPS (inch)	L	D	D1	D2	f	b	Z-Fd	Do	H	W(kg)
DN (mm)	NPS (inch)	Class 150Lb
50	2	43	-	120.7	92.1	3.5	-	4-φ19	200	150	7
65	2	46	-	139.7	104.8	3.5	-	4-φ19	250	160	7
80	3	46	-	152.4	127	3.5	-	4-φ19	250	170	10
100	4	52	-	190.5	157.2	3.5	-	8-φ19	300	185	14
125	5	56	-	215.9	185.7	3.5	-	8-φ22	300	210	22
150	6	56	-	241.3	215.9	4	-	8-φ22	200*	230	32
200	8	60	-	298.5	269.9	4	-	8-φ22	240*	285	66
250	10	68	-	362	323.8	4	-	12-φ25	240*	325	80
300	12	78	-	431.8	381	4.5	-	12-φ25	280*	360	94
350	14	78	-	476.3	412.8	4.5	-	12-φ28.6	280*	430	125
400	16	102	-	539.8	469.9	5	-	16-φ28.6	320*	475	150
450	18	114	-	577.9	533	5	-	16-φ31.8	320°	525	172
500	20	127	-	635	584	6	-	20-φ31.8	360*	565	225
600 24		154	-	749.3	692	6	-	20-034.9	360*	630	290
* In the table, when NPS ≤ 24, the flange size shall be in accordance with ASME B16.5. When NPS>24, the flange size shall be in accordance with ASME B16.47" * Flange dimensions D,D1,D2,Z-Ф d,f,d, the values are the standard flange dimensions connected with the butterfly valve, the size code in the diagram is only a part of them *The flange size in the table is determined according to ASME B16.5 for NPS≤24, and according to ASME B16.47 for NPS>24.

Cory ·

Advantage

Sophisticated modern CNC machining equipment and unique technology to achieve the perfect presentation of the enterprise, independent technology development of high quality products fully reflects the enterprise's unremitting pursuit of brand internationalization strategy.

Focus on valve safety technology research and development

Valve safety is the core of the core, we continue to innovate and develop valve safety technology

A model of craftsman spirit of man-machine integration

With the whole industry chain service capacity, from castings, valve bodies to accessories are independent production, built a leading domestic flexible manufacturing center.

Internationally recognized safety quality standards

Whether it is purchased parts, components or self-made products, follow a unified quality control process standard system.

Refined Gold Casting high quality Products

Control product quality from the source and produce high quality products that meet international standards.

Online
Message

If you have any suggestions or feedback to our company, please fill in the relevant information on this page and submit it. A staff member will contact you in time, or please call us directly.