D671X Pneumatic Sandwich Soft Seal Butterfly Valve

• Media: Water Vapor Oils
• Driving Mode: Electromanual Pneumatic
• Connection Form: Flange Welding
• Structure: Three-Eccentric Sealing
• Seal Form: Supercharging Pressured Sealed
• Valve Stem: Normal
• Model NO.: D641X
• Work Pressure: Mid-Pressure (2.5mpa< Pn <6.4mpa)
• Working Temperature: Medium Temperature (120°C<T<450°C)
• Material of Seal Surface: Metal Hard Sealed
• Valve Body: Sheet Metal
• Standard: National Standard
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Transport Package: Wooden Box
• Specification: DN50-DN2400
• Trademark: xc
• Origin: China
• HS Code: 8481804090
• Production Capacity: 10000

Product Description

D671X pneumatic clamp soft seal butterfly valve adopts double eccentric structure, with the sealing function of tighter and tighter, and the sealing performance is reliable. The sealing auxiliary material is made of stainless steel and nitrile oil resistant rubber, which has a long service life. Rubber sealing ring can be located on the valve body, can also be located on the butterfly plate, can be applicable to different characteristics of the media, for the user to choose. The butterfly plate adopts the frame structure, high strength, large flow area and small flow resistance. The whole paint, can effectively prevent rust and as long as the replacement of the sealing seat sealing material, it can be used in different media. D671X pneumatic clamp butterfly valve has a two-way sealing function, the installation is not controlled by the flow of the medium, nor affected by the spatial position, can be installed in any direction. The valve has unique structure, flexible operation, labor-saving and convenient.
Pneumatic clamp type soft seal butterfly valve structure characteristics
D671X pneumatic clamping butterfly valve adopts splint type structure, mainly composed of valve body, valve plate, valve shaft, valve seat and transmission device, simple and compact structure, compact and lightweight, convenient transportation, installation and disassembly; 90 opening and closing, fast switching, small operating torque, labor-saving and lightweight; Good sealing performance, long service life, can achieve zero leakage; Its flow characteristics are similar to a straight line, and the adjustment performance is good. The valve is rubber sealed, the sealing performance of the butterfly plate and the seat is good when it is closed, the two-way sealing performance is excellent, the torque value is small, the valve is maintained under the working pressure, and the friction between the butterfly plate and the seat seal is small. D671X pneumatic clamping butterfly valve is driven by the valve shaft valve plate, valve plate to do 90° rotation. Butterfly plate open and close flexible, no jammed, jumping phenomenon, small torque.
Pneumatic clamp type soft seal butterfly valve product use
Soft seal middle line clamp butterfly valve, double eccentric flanged butterfly valve compact structure, 90° rotary switch easy, reliable seal, long service life, D671X pneumatic clamp butterfly valve is widely used in water plants, power plants, steel mills, paper making, chemical, textile, food and other water supply and drainage, gas pipeline for regulating flow and intercepting media.
Pneumatic clamping soft seal butterfly valve actuator
D671X pneumatic clamp butterfly valve adopts a new series GT type pneumatic actuator, with double acting and single acting (spring return), gear transmission, safe and reliable; Large diameter valve adopts series AW type pneumatic actuator fork type transmission, reasonable structure, large output torque.
1, cut off type accessories: single electronically controlled solenoid valve, double electronically controlled solenoid valve, limit switch back actuator
2, regulating accessories: electrical positioner, pneumatic positioner, electrical converter
3, air source processing accessories: air filter pressure regulator, air source processing triplets
4. The use of electric-gas valve positioner, electrical signal and compressed air as the power, accept the control system input 0-10mA DC or 4-20mA DC current signal, the regulator will be compressed air, into the air source pressure signal input and output, change the rotation Angle of the valve plate (0-90° any Angle), with better regulation control flow and other parameters
5, the use of electromagnetic reversing valve, valve position return device, AC220V or DC24V power supply voltage and compressed air as the power, to achieve the rapid two-position cut off control of fluid media. Pneumatic actuator adopts piston type cylinder and bend arm conversion structure, the output torque is large, the volume is small, and the protection level is high with full seal waterproof design
6, the cylinder body adopts mirror cylinder, oil-free lubrication, small friction coefficient, corrosion resistance, durability and reliability. All transmission bearings are using boundary self-lubricating bearings oil-free lubrication, to ensure that the drive shaft does not wear and tear
Pneumatic clamping soft seal butterfly valve parts material
 

Part name	Materials
Valve body	Gray cast iron, ductile cast iron, cast steel, stainless steel and special materials
Butterfly plate	Ductile iron, cast steel, stainless steel and alloy steel
Valve shaft	2Cr13, stainless steel
Seal ring	Nitrile oil resistant rubber, tef-lon
Fillers	O-rings, flexible graphite

Dimensions of pneumatic clamping soft seal butterfly valve
 

Nominal diameter DN(mm)		Structural length (mm)	Overall dimensions (mm)				Connection size (standard value)
							0.6 MPa		1.0 MPa		1.6 MPa
millimeter	inches	L	H1	H0	A	B	D0	n-d	D0	n-d	D0	n-d
50	2. ""	43	63	315	180	65	110	4-14	125	4 to 18	125	4 to 18
65	2 1/2"	46	70	330	180	65	130	4-14	145	4 to 18	145	4 to 18
80	3"	46	83	390	245	72	150	4 to 18	160	8 to 18	160	8 to 18
100	4"	52	105	431	240	72	170	4 to 18	180	8 to 18	180	8 to 18
125	5. ""	56	115	455	240	72	200	8 to 18	210	8 to 18	210	8 to 18
150	6"	56	137	626	350	93	225	8 to 18	240	8-22	240	8-22
200	8"	60	164	720	350	93	280	8 to 18	295	8-22	295	12 and 22
250	10	68	206	800	550	350	335	12-18	350	12 and 22	355	12-26
300	12	78	230	860	600	350	395	12 and 22	400	12 and 22	410	12-26
350	14	78	248	883	600	350	445	12 and 22	460	16-22	470	16 and 26
400	16	102	89	972	600	350	495	16-22	515	16 and 26	525	16 and 30
450	18	114	320	1043	750	380	550	16-22	565	20 to 26	585	20-30
500	20	127	343	1098	750	380	600	20-22	620	20 to 26	650	20-33
600	24	154	413	1236	750	380	705	20 to 26	725	20-30	770	20-36
seven hundred	28	165	478	1431	750	380	810	24-26	840	24 to 30	840	24-36
800	32	190	25	1488	750	380	920	24 to 30	950	24 to 33	950	24-39
900	36	203	620	1615	1250	380	1020	24 to 30	1050	28 and 33,	1050	28-39
1000	40	216	725	1795	1500	580	1120	28 and 30	1160	28-36	1170	28-42
1200	48	254	780	1976	1500	580	1340	32-33	1380	32-39	1390	32-48