D971XThe electric soft seal double clip butterfly valve pn6 ~ PN16 adopts a variety of parts material pairing, which is composed of double eccentric clip butterfly valve and yxr and AOX fine and small electric actuators. It has compact structure, easy 90 ° rotary switch, reliable sealing and long service life. It is widely used in water supply and drainage of water plants, power plants, steel plants, paper-making, chemical industry, catering and other systems as regulation and cut-off use. Material selection of main parts of electric double clip butterfly valve: valve body material: cast iron, nodular iron, stainless steel, copper alloy, aluminum alloy; butterfly plate material: nodular iron, stainless steel, corrosion resistant steel, titanium steel, copper alloy; valve seat: butyrate, ethylene propylene, chloroprene, hiporon, polytetrafluoroethylene, natural rubber, etc.

1. The valve adopts double eccentric structure, which has the sealing function of closing more tightly, and the sealing performance is reliable.
2. Stainless steel and NBR oil resistant rubber are used as sealing materials, which have long service life.
3. The rubber seal ring can be located on the valve body or butterfly plate. It can be used in different media for users to choose.
4. The butterfly plate adopts frame structure with high strength, large flow area and small flow resistance.
5. It can be used in different media as long as the sealing material of sealing valve seat is replaced.
6. The valve has the function of two-way sealing. It is not controlled by the flow direction of medium or affected by the space position. It can be installed in any direction.
7. The valve has unique structure, flexible operation, labor saving and convenience.

D971XMaterials of main parts and components of electric soft seal wafer butterfly valve pn6 ～ PN16

Executive standard for electric soft seal wafer butterfly valve pn6 ～ PN16	Material Science
valve body	HT250 WCB SUS304
Disc	Ni-P stainless steel with nodular cast iron304、316
Valve shaft	2Cr13 SUS304
seal ring	NBR、EPDM、VITON、PTFE

D971XExecutive standard for electric soft seal wafer butterfly valve pn6 ～ PN16

Manufacturing standards	GB/T 122387-89
Flange standard	GB9113-2000、GB17241.6-1998
Structural length standard	GB12221-89
Inspection standard	GB/T 13927-92

D971XMain external connection dimensions of electric soft seal wafer butterfly valve pn6 ～ PN16(mm)

DN	L	H	H1	A	B	ФD
						0.6MPa	1.0MPa	1.6MPa
50	43	77	443	125	125	88	99	99
65	46	85	463	125	125	108	118	118
80	46	95	483	125	125	124	132	132
100	52	105	498	125	125	144	156	156
125	56	129	682	325	245	174	184	184
150	56	132	736	325	245	199	211	211
200	60	165	800	325	245	254	266	266
250	68	197	895	363	313	309	319	319
300	78	234	956	363	313	363	370	370
350	78	283	1029	363	313	413	429	429
400	102	325	1103	363	313	463	480	480
450	114	369	1186	465	469	518	530	548
500	127	404	1280	546	431	568	582	609
600	154	470	1321	546	556	667	682	720
700	165	503	1431	546	556	772	794	794
800	190	571	1542	546	556	878	901	901
900	203	621	1800	617	706	978	1001	1001
1000	216	702	2363	632	706	1078	1112	1112
1200	254	818	2583	632	706	1295	1328	1328

Dimensional drawing

1. Before installation, check whether the specification, pressure, temperature and corrosion resistance of butterfly valve meet the use requirements. Check whether the parts are damaged or loose.
2. The butterfly valve can be installed on the pipeline at any angle and should be closed; when welding the pipe flange, the valve sealing port should be blocked with a plate to prevent particles and sundries from damaging the sealing surface. After welding, take down the valve, clean the valve sealing surface and pipe cavity, and then install the fixed valve.
3. Please pay attention to the pressure bearing direction when the valve is closed.
4. Before installation, the sealing surface (sealing surface at both ends, sealing surface of butterfly plate and sealing surface of valve seat) shall be thoroughly cleaned to remove dust and dirt.
5. Before installation, the butterfly valve should be air tested, and the opening and closing position should be flexible, and the opening and closing position should be consistent with the position indicated by the pointer.
6. Manual operation, clockwise is off, counter clockwise is on, pointer indication is in place, it is not allowed to open and close the valve with additional force.
7. During the pressure test of the valve, it is not allowed to use single flange for installation and pressure test, but double flange installation and pressure test must be adopted. The test pressure shall comply with GB / T13927-92.
8. The bolts shall be tightened symmetrically and alternately instead of separately.
9. The limit screw has been adjusted before delivery, so it is not allowed to adjust it easily. If the configuration of driving device is electric or pneumatic, please refer to the manual of supporting drive device.
10. When the electric butterfly valve leaves the factory, the opening and closing stroke of the control mechanism has been adjusted. In order to prevent the wrong direction when the power supply is connected, the user should first manually open it to the half open position before connecting the power for the first time, and then press the inching switch to check that the direction of the indicator wheel is consistent with the opening direction of the valve.
11. If the valve is found to be open and closed abnormally, the cause shall be found out for repair and elimination, so as to prevent the valve from being damaged due to opening and closing by means of applying force.