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Pneumatic globe valve

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Pneumatic globe valve

Product model: J641H/Y/W

Nominal diameter: DN50~300mm

Nominal pressure: PN1.6~4.0MPa

Applicable temperature: -20℃-425℃

Applicable medium: water, oil, steam

Main material: carbon steel, stainless steel, etc.

Mode of action: double-acting, single-acting

Control mode: normally open, normally closed

Accessory selection: air source triplet, manual mechanism

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Product Description

The pneumatic flange globe valve adopts a double-acting cylinder, which uses the upper chamber air intake or the lower chamber air intake to remotely control the valve, which is convenient and flexible to operate. The structure is simple, the manufacture and maintenance are convenient; the working stroke is small, and the opening and closing time is short; the sealing surface of the closing body and the valve seat is sealed by a conical surface, which has small closing force, is resistant to erosion, and has reliable sealing. The valve seat can be a replaceable valve seat, which can be combined with the material of the sealing surface of the closing part in any combination to meet the requirements of working conditions and prolong the service life. The valve is a valve driven by compressed air. The compressed air enters the pneumatic actuator to drive the cylinder to connect the valve stem and the valve disc to make the lifting movement.

Product Features

1. Exquisite selection of materials, in line with relevant domestic and foreign standards, reasonable structure and beautiful appearance.

2. The valve disc and valve seat sealing surface are made of iron-based alloy surfacing or Stellite cobalt-based hard alloy surfacing, which has good wear resistance, high temperature resistance, corrosion resistance, scratch resistance and long service life. .

3. The valve stem is quenched and tempered and surface nitrided, which has good corrosion resistance and scratch resistance.

4. Various piping flange standards and flange sealing surface types can be used to meet various engineering needs and user requirements.

5. The valve body has a complete variety of materials, and the packing and gasket can be reasonably selected according to the actual working conditions or user requirements, and can be suitable for various pressure, temperature and medium working conditions.

6. The inverted seal is made of threaded connection seal seat or body surfacing austenitic stainless steel, which is reliable in sealing. The replacement of packing can be carried out without stopping the machine, which is convenient and quick, and does not affect the operation of the system.

Material of main parts

NO	Part Name	Material
NO	Part Name	C	P4	P6
1	Body	WCB	ZG1Cr18Ni9Ti	1Cr18Ni12Mo2Ti
2	Gasket	Flexible graphite + stainless steel	PTFE	PTFE
3	Bolt	35	304	304
4	Helical flap	WCB+ surfacing welding 304 or stelite, PTFE	ZG1Cr18Ni9Ti PTFE	ZG1Cr18Ni12Mo2Ti PTFE
5	Split collar	1Cr18Ni9Ti	1Cr18Ni9Ti	1Cr18Ni12Mo2Ti
6	Disc cover	1Cr18Ni9Ti	1Cr18Ni9Ti	1Cr18Ni12Mo2Ti
7	Stem	2Cr13	1Cr18Ni9Ti	1Cr18Ni12Mo2Ti
8	Nut	35	304	304
9	Eyebolt	35	304	304
10	Cap	WCB	ZG1Cr18Ni9Ti	ZG1Cr18Ni12Mo2Ti
11	Bolt	35	304	304
12	Gasket	35	1Cr18Ni9Ti	1Cr18Ni12Mo2Ti
13	Packing	Flexible graphite	PTFE	PTFE
14	Packing platen	WCB	ZG1Cr18Ni9Ti	ZG1Cr18Ni12Mo2Ti
15	Nut	35	304	304

Main external connection dimensions PN1.6MPa

DN(mm)	L	D	D1	D2	b	f	Z-φd	H	D0
15	130	95	65	45	14	2	4-14	291	120
20	150	105	75	55	14	2	4-14	300	140
25	160	115	85	65	14	2	4-14	353	160
32	180	135	100	78	15	2	4-18	390	180
40	200	145	110	85	16	2	4-18	518	200
50	230	160	125	100	16	3	4-18	555	240
65	290	180	145	120	18	3	4-18	630	280
80	310	195	160	135	20	3	8-18	683	280
100	350	215	180	155	20	3	8-18	745	320
125	400	245	210	185	22	3	8-18	855	360
150	480	280	240	210	24	3	8-23	870	400
200	600	335	295	205	26	3	12-23	954	400
250	650	405	355	320	30	3	12-23	1065	450
300	750	460	410	375	30	3	12-23	1185	500

Main external connection dimensions PN2.5MPa

DN(mm)	L	D	D1	D2	b	Z-φd	f	H	D0
15	130	95	65	45	16	2	4-14	291	120
20	150	105	75	55	16	2	4-14	300	140
25	160	115	85	65	16	2	4-14	353	160
32	180	135	100	78	18	2	4-18	390	180
40	200	145	110	85	18	3	4-18	518	200
50	230	160	125	100	20	3	4-18	555	240
65	290	180	145	120	22	3	8-18	630	280
80	310	195	160	135	22	3	8-18	683	280
100	350	230	190	160	24	3	8-23	745	320
125	400	270	220	188	28	3	8-25	855	360
150	480	300	250	218	30	3	8-25	870	400
200	600	360	310	278	34	3	12-25	954	400
250	650	425	370	332	36	3	12-30	1065	450
300	750	485	430	390	40	4	12-30	1185	500