ZSJTQPneumatic cut-off three-way ball valve is composed of pneumatic actuator and three-way ball valve. It is a kind of rotary cut-off regulating valve. It has the advantages of tight closing, compact structure, light weight and convenient maintenance. It is widely used in pipeline automation control of gas, liquid, steam, oil and other corrosive media. The three-way ball valve with two valve seats has the advantages of compact structure, beautiful appearance and good sealing performance. It can switch the flow direction of medium in the pipeline. It can also make two mutually perpendicular channels connected or closed. The four seat sealing three-way ball valve has beautiful appearance and compact and reasonable structure. It can not only realize the switching of medium flow direction, but also connect the three channels. At present, it can also close any channel to connect the other two channels, so as to flexibly control the convergence or diversion of medium in the pipeline.

ZSJTQMain technical parameters of pneumatic cut-off three-way ball valve

Ontology
Valve body form	Direct casting three way valve
body material	ZG230-450  ZG1Cr18Ni9Ti
Nominal diameter	DN15-DN300
Nominal pressure	PN1.6  2.5  4.0  6.4MPa ANSI  150  300LB JIS  10K  20K  30K
Connection form	Flange FF RF RTJ etc
Structural length	accord withIEC534
Valve cover form	Integrated
filler
Valve internals
Spool type	O-type tee ball core
Flow characteristics	Approximate quick opening type
Interior material
Executive Agency
Pneumatic	Piston type pneumatic actuator
Single action
Double action	Air on / air off

 

The three-way ball valve is divided into L-type and T-type, and the medium flow direction is shown in the figure below. L-type three-way ball valve is suitable for medium flow direction switching, which can connect two mutually perpendicular channels. T-type three-way ball valve is suitable for medium diversion, confluence or flow direction switching. T-type hole can make three channels connected with each other or two of them. Three way ball valve generally adopts two seat structure, or four seat structure according to user requirements.

 

ZSJTQMaterial and internal structure of main parts of pneumatic cut-off three-way ball valve

The body material is carbon steel
1	valve body	WCB	LCB	WC9
2	seal ring	PTFE/PPL
3	shim	PTFE/Metal graphite spiral wound gasket
4	The Ball	According to the actual working conditions
5	filler	PTFE/graphite
6	Stem	2Cr13	2Cr13	2Cr13
7	Packing gland	WCB	LCB	WC9
The body is made of stainless steel
1	valve body	CF8	CF8M	CF3M
2	seal ring
3	shim	PTFE/Metal graphite spiral wound gasket
4	The Ball	According to the actual working conditions
5	filler	PTFE/graphite
6	Stem	304	316	316L
7	Packing gland	CF8	CF8M	CF3M

Note: the above is the standard configuration structure. The standard valve body materials are carbon steel and stainless steel, which can also be configured according to user requirements.

Executive Standards
1. Design and manufacture: GB / t12237-1989; apl608
2. Inspection and test: GB / t13927-1992; APL 598
Flange connection: JB / t79-2-1994; ASME / ANSI b165
4 structure length: jd-2002

ZSJTQDimension unit of outline installation of pneumatic cut off three way ball valve（mm）

Nominal pressure （MPa）	Nominal diameter DN(mm)	size(mm)
		D	D1	D2	L	H	L0	b	n-d
1.6	25	115	85	65	160	199	164	16	4-φ14
	32	140	100	76	180	240	190	18	4-φ18
	40	150	110	84	200	255	210	18	4-φ18
	50	165	125	99	230	286	247	20	4-φ18
	65	185	145	118	290	330	276	20	4-φ18
	80	200	160	132	310	349	308	20	4-φ18
	100	220	160	156	350	421	348	22	8-φ18
	125	250	210	184	400	485	432	22	8-φ18
	150	285	240	211	480	582	524	24	8-φ22
2.5	25	115	85	65	160	199	164	16	4-φ14
	32	140	100	76	180	240	190	18	4-φ18
	40	150	110	84	200	255	210	18	4-φ18
	50	165	125	99	230	286	247	20	4-φ18
	65	185	145	118	290	330	276	22	8-φ18
	80	200	160	132	310	349	308	24	8-φ18
	100	235	190	156	350	421	348	24	8-φ22
	125	270	220	184	400	485	432	26	8-φ26
	150	300	250	211	480	582	524	28	8-φ26