D971F46The electric fluorine lined double clip butterfly valve adopts fluorine lined plastic lining butterfly plate with spherical sealing surface and silicone rubber gasket at the base of the valve seat to adjust the sealing performance of the valve. The valve is easy to operate, with tight sealing performance and long service life. It can be used for fast cutting off or regulating flow. It is suitable for the occasions requiring reliable sealing and good regulating characteristics. The valve body adopts split type, and the sealing of the current end of the valve shaft is controlled by adding fluorine rubber to the rotating base surface between the butterfly plate and the valve seat, so as to achieve compact structure, beautiful appearance, reasonable process and reliable performance. Ensure that the valve shaft does not contact with the fluid medium in the cavity, so it is very convenient to replace the valve shaft, and the valve can be completed without detaching from the pipeline. The products are widely used in the transportation of liquid and gas (including steam) in various types of industrial pipelines, especially for those with severe corrosive media, such as sulfuric acid, hydrofluoric acid, phosphorus, acid, chlorine, strong alkali, aqua regia, etc.

D971F46Material list of main parts and components of electric fluorine lined wafer butterfly valve

Serial number	Part name	Gray cast iron	cast steel	Stainless and acid resistant cast steel		Ultra low carbon stainless and acid resistant cast steel
		Z	C	P	R	PL	RL
1	Body / bonnet	HT250	WCB	CF8	CF8M	CF3	CF3M
2	Disc	WCB	35	CF8	CF8M	CF3	CF3M
3	Stem	1Cr13	2Cr13	1Cr18Ni9Ti	1Cr18Ni12Mo2Ti	00Cr18Ni10	000Cr17Ni14Mo2
4	Liner / seat	PTFE(F4),PCTEF(F3),FEP(F46),PFA(可溶F4),PP,PO
5	seal ring	FPM(Fluororubber)			FPM(Fluororubber))
6	Elastic strip (PAD)	Si（silicon rubber)			Si(silicon rubber)
7	Adjusting positioning seat	0Cr18Ni9	0Cr18Ni9	1Cr18Ni9Ti	1Cr18Ni12Mo2Ti	00Cr18Ni10	00Cr17Ni14Mo2
8	Fastening bolt	35	35	1Cr17Ni2	1Cr17Ni2	1Cr18Ni9Ti	1Cr18Ni9Ti
9	Nut	45	45	0Cr18Ni9	0Cr18Ni9	0Cr18Ni9	0Cr18Ni9
10	Operating handle	ZL101

D971F46Main shape and connection dimension of electric fluorine lined wafer butterfly valve

Nominal diameter		L	D	D1	D2	f	b	Z-φd	D	D1	D2	f	b	Z-φd
DN(mm)	NPS(inch)		PN1.0MPa						PN1.6MPa
40	3/2	33	145	110	85	3	18	4-φ18	145	110	85	3	18	4-φ18
50	2	43	160	125	100	3	20	4-φ18	160	125	100	3	20	4-φ18
65	5/2	46	180	145	120	3	20	4-φ18	180	145	120	3	20	4-φ18
80	3	46	195	160	135	3	22	4-φ18	195	160	135	3	22	8-φ18
100	4	52	215	180	155	3	22	8-φ18	215	180	155	3	24	8-φ18
125	5	56	245	210	185	3	24	8-φ18	245	210	185	3	26	8-φ18
150	6	56	280	240	210	3	24	8-φ23	280	240	210	3	28	8-φ18
200	8	60	335	295	265	3	26	8-φ23	335	295	265	3	30	12-φ23
250	10	68	390	350	320	3	28	12-φ23	405	355	320	3	32	12-φ25
300	12	78	440	400	368	3	28	12-φ23	460	410	375	4	34	12-φ25
350	14	78	500	460	428	4	30	16-φ23	520	470	435	4	38	16-φ25
400	16	102	565	515	482	4	32	16-φ25	580	525	485	4	40	16-φ30
450	18	114	615	565	532	4	32	20-φ25	640	585	545	4	44	20-φ30
500	20	127	670	620	585	4	34	20-φ25	705	650	608	4	46	20-φ34
600	24	154	780	725	685	5	36	20-φ30	840	770	718	5	54	20-φ41
700	28	165	895	840	800	5	40	24-φ30	910	840	788	5	54	24-φ41
800	32	190	1010	950	905	5	44	24-φ34	1020	950	898	5	54	24-φ41
900	36	203	1110	1050	1005	5	46	28-φ34	1120	1050	998	5	54	28-φ41
1000	40	216	1220	1160	1115	5	50	28-φ34	1255	1170	1110	5	60	28-φ48
1200	48	254	1450	1380	1325	5	56	32-φ41

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.