Fluorine lined gate valve-Fluorine valve series-衬氟阀厂家-上海冠环阀门制造有限公司

Product description

Flanged fluorine-lined gate valves are suitable for pipelines with corrosive media. The stem nut and the gate plate are two-body structure, so there is no jamming phenomenon. The inside of the valve and all the parts in contact with the medium are lined with high-tech fluorine. It is suitable for various concentrations of aqua regia, sulfuric acid, hydrochloric acid, hydrofluoric acid and various organic acids and strong oxidants at -50°C to 150°C. FEP is also suitable for various concentrations of strong alkali organic solvents and other corrosive gases, It is used on the pipeline of liquid medium. Widely used in water plants, power plants, chemicals, food, paper, medicine and other industries.

Structural Features

1. The parts directly in contact with the medium, such as the inner cavity of the valve body and the valve cover, the gate plate, and the outer surface of the valve stem, are all lined with fluoroplastics such as FEP (F46);
2. The sealing pair is FPF (F46) / FEP (F46) or other material combination, the friction coefficient is small, and the opening and closing torque is low;
3. The packing adopts PTFE (F4) standard packing, which has good sealing performance and is easy to maintain and replace;
4. The elastic gate can compensate the deviation of the wedge angle between the sealing surface of the gate and the sealing surface of the valve seat, with good fit and ideal sealing effect;
5. The medium can pass through the gate valve from any direction on both sides, which is suitable for the opening and closing device on the pipeline where the medium direction may change.

Material of main parts

Serial number	Part name	Grey cast iron	Cast steel	Stainless acid-resistant cast steel		Ultra-low carbon stainless acid-resistant cast steel
		Z	C	P	R	PL	RL
1	Body/end cover/Gate	HT250	WCB	CF8	CF8M	CF3	CF3M
2	Stem	1Cr13	2Cr13	1Cr18Ni9	1Cr18Ni12Mo2Ti	00Cr18Ni10	00Cr17Ni14Mo2
3	Lining/seat	PTFE(F4)、PCTFE(F3)、FEP(F46)、PFA(可溶性4)
4	Packing/gland	WCB		CF8	CF8M	CF3	CF3M
5	Packing	PTFE(F4)		PTFE(F4)		PTFE(F4)
6	Swing bolt	35		1Cr17Ni2		1Cr17Ni2
7	Stem nut	ZCuAI10Fe3		ZCuAI10Fe3		ZCuAI10Fe3
8	Fastening nut	45		1Cr17Ni2		1Cr18Ni9Ti
9	Nut			0Cr18Ni9		0Cr18Ni9
10	Hand wheel	WCB		WCB		WCB

Main Dimensions

Nominal diameter	Standard value							Reference
DN (mm)	L	D	D1	D2	f	b	Z-φd	D0	H	WT(Kg)
DN (mm)	PN 1.0MPa
15	108	95	65	45	2	16	4-φ14	120	175	6
20	117	105	75	58	2	18	4-φ14	120	195	8
25	127	115	85	68	2	18	4-φ14	160	230	10
32	140	140	100	78	2	18	4-φ18	160	245	11
40	240	150	110	88	2	18	4-φ18	180	285	13
50	250	165	125	102	2	18	4-φ18	200	300	16
65	270	185	145	125	2	18	8-φ18	250	340	20
80	280	200	160	145	2	20	8-φ18	280	410	30
100	300	220	180	160	2	20	8-φ18	300	465	40
125	325	250	210	180	2	22	8-φ18	320	620	60
150	350	285	240	240	2	22	8-φ22	350	710	85
PN 1.6MPa
15	108	95	65	45	2	16	4-φ14	120	175	6
20	117	105	75	58	2	18	4-φ14	120	195	8
25	127	115	85	68	2	18	4-φ14	160	230	10
32	140	140	100	78	2	18	4-φ18	160	245	11
40	240	150	110	88	2	18	4-φ18	180	285	13
50	250	165	125	102	2	18	4-φ18	200	300	16
65	270	185	145	122	2	18	4-φ18	250	340	20
80	280	200	160	138	2	20	8-φ18	280	410	30
100	300	220	180	158	2	20	8-φ18	300	465	40
125	325	250	210	188	2	22	8-φ18	320	620	60
150	350	285	240	212	2	22	8-φ22	350	710	85