D971X Electric 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.: D971X
• 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

Product advantage

The main advantages of D971X clamp type electric soft seal butterfly valve are simple structure, small size, light weight, low cost, the characteristics of pneumatic disc valve is especially significant, installed in the high altitude tunnel, convenient operation after two five-way solenoid valve control, and can also adjust the flow medium. Small fluid resistance, large diameter pneumatic disc valve fully open when the effective flow area is large, open and close quickly and save labor, the disc can be rotated 90 Angle to complete the opening and closing, because the medium force on both sides of the rotating shaft plate hand is close to equal, and the torque generated in the opposite direction, so the opening and closing torque is small, low pressure can achieve a good seal, the disc valve sealing material is rubber, fluorine rubber, Edible rubber, lined with tetrafluoroethylene, so the sealing performance is good, which hard seal disc valve for soft and hard laminated metal sheet with metal hard seal and elastic seal heavy advantages, regardless of low temperature conditions have excellent sealing performance.

Applicable environment

D971X clamp type electric soft seal butterfly valve structure working principle applicable environment analysis
The butterfly plate of D971X clamp type electric soft seal butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical channel of the butterfly valve body, the disc disc rotates around the axis, the rotation Angle is between 0°~90°, and the valve is fully open when it is rotated to 90°.
The electric soft seal butterfly valve is simple in structure, small in size and light in weight, and is composed of only a few parts. And only need to rotate 90° can be quickly opened and closed, the operation is simple, and the electric valve has good fluid control characteristics. When the butterfly valve is in the fully open position, the thickness of the butterfly plate is the only resistance when the medium flows through the valve body, so the pressure drop generated by the valve is small, so it has better flow control characteristics. The butterfly valve has two types of seal: elastic seal and metal seal. Elastic sealing valve, the sealing ring can be inlaid on the valve body or attached to the butterfly plate around.
If the butterfly valve is required to be used as a flow control, the main thing is to correctly select the size and type of valve. The structure principle of butterfly valve is especially suitable for the production of large diameter valves. Butterfly valve is not only widely used in petroleum, gas, chemical industry, water treatment and other general industry, but also used in the cooling water system of thermal power station.

Working principle

Working principle of D971X clip-on electric soft seal butterfly valve
The valve with metal seal generally has a longer life than the valve with elastic seal, but it is difficult to achieve complete seal. Metal seals can adapt to higher operating temperatures, and elastic seals have temperature-limited defects.

Main parameters

 

Nominal passage DN (mm)	50 to 2000		50 to 1600
Nominal pharmacological PN (MPa)	0.6	1.0	1.6
Seal test (MPa)	0.66	1.1	1.76
Strength test (MPa)	0.9	1.5	2.4
Applicable temperature	Nitrile rubber: -40ºC ~ 90ºC Fluorine rubber: -20ºC ~ 200ºC
Applicable media	Water, air, natural gas, oil and weakly corrosive fluids
Leakage rate	GB/T13927-92 compliant
Driving mode	Worm gear drive, electric, pneumatic, hydraulic

Main dimensions

Unit: mm

DN	L	H	HO	A	B	0.6 MPa		1.0 MPa		1.6 MPa
						DO	N - Ф d	DO	N - Ф d	DO	N - Ф d
50	43	63	438	125	125	110	4-14	125	4 to 18	125	4 to 18
65	46	70	453	125	125	130	4-14	145	4 to 18	145	4 to 18
80	46	83	478	125	125	150	4 to 18	160	8 to 18	160	8 to 18
100	52	105	519	125	125	170	4 to 18	180	8 to 18	180	8 to 18
125	56	115	713	325	245	200	8 to 18	210	8 to 18	210	8 to 18
150	56	137	749	325	245	225	8 to 18	240	8-22	240	8-22
200	60	164	843	325	245	280	8 to 18	295	8-22	295	8-22
250	68	206	947	363	313	335	12-18	350	12 and 22	355	12-26
300	78	230	1013	363	313	395	12 and 22	400	12 and 22	410	12-26
350	78	248	1046	363	313	445	12 and 22	460	16-22	470	16 and 26
400	102	289	1135	363	313	495	16-22	515	16 and 26	525	16 and 30
450	114	320	1328	465	439	550	16-22	565	20 to 26	585	20-30
500	127	343	1226	546	481	600	20-22	620	20 to 26	650	20-33
600	154	413	1394	546	556	705	20 to 26	725	20-30	770	20-36
seven hundred	165	478	1534	546	556	810	24-26	840	24 to 30	840	24-36
800	190	525	1159	546	556	920	24 to 30	950	24 to 33	950	24-39
900	203	585	1748	617	706	1020	24 to 30	1050	28 and 33,	1050	38 and 39
1000	216	640	1805	632	706	1120	28 and 30	1160	28-36	1170	28-42
1200	254	755	2035	632	706	1340	32-33	1380	32-39	1390	32-48