Q671YPneumatic V-type ball valve PN16 ~ PN25 is composed of V-type valve body, pneumatic actuator and other accessories. Pneumatic V-type ball valve is a kind of advanced control valve with right angle rotation structure. V-type ball valve needs no repair for a long time and has a long service life. It provides you with a kind of valve with real high efficiency to control the process condition. V-type ball valve adopts double bearing structure, high mechanical stability and small starting torque, which ensures excellent sensitivity and induction speed of the valve.

Q671YPerformance Specification for pneumatic v-ball valve PN16 ～ PN25

Nominal pressure	Test pressure(MPa)		Applicable media	Applicable temperature
	Shell test	Sealing test
1.6	2.4	1.76	Water, oil, gas and high viscosity, containing fiber, solid particles and other media	-28℃～≤550℃
2.5	3.75	2.75
4.0	6.0	4.4
Application specification	Connecting flange	JB79-59    GB9113    HG20592-97    ANSI B16.5
	Inspection and test	JB/T9092-99               API 598

Q671YMaterial of main parts of pneumatic V-type ball valve PN16 ～ PN25

Material / material code		C	P		R
Main parts	valve body	WCB	ZG1Cr18Ni9Ti		ZG0Cr18Ni12Mo2Ti
	paddles	2Cr13	ZG1Cr18Ni9Ti		ZG0Cr18Ni12Mo2Ti
	Stem	2Cr13	1Cr18Ni9Ti		0Cr18Ni12Mo2Ti
	seal ring	Cemented carbide
	filler	Polytetrafluoroethylene, Roushi ink
Applicable conditions	Applicable media	Water, steam and oil	Nitric acid		Acetic acid
	Applicable temperature	-28℃～500℃
Actuator	model	GT or AW series
	Air source pressure	0.3-0.7MPa
Executive Standards		Design and manufacture	Structural length	Flange size	Pressure temperature	Test and inspection
		GBT/12237	GB12221	GB9113	GB9131	GB13927

 

Q671YDimension of pneumatic V-type ball valve PN16 ～ PN25

Nominal pressure Or pressure level	Nominal diameter(DN)		size(mm)
	(mm)	(in)	W	L	W1	L1	d	d1	H1	H
PN1.6MPa	25	-	50	-	25	-	64	38	57	200
	40	-	60	-	25	-	82	49	63	205
	50	-	75	124	32	62	100	60	92	225
	65	-	85	145	38	72.5	120	75	100	235
	80	-	100	165	45	82.5	131	89	108	260
	100	-	115	194	50	97	158	113	117	270
	125	-	135	210	55	105	180	140	140	320
	150	-	160	229	65	114.5	216	164	177	340
	200	-	200	243	80	121.5	268	205	200	390
	250	-	240	297	92	148.5	326	259	252	420
	300	-	-	338	-	169	-	300	270	510
PN2.5MPa	25	-	50	-	25	-	64	38	57	200
	40	-	60	-	25	-	82	49	63	205
	50	-	75	124	32	62	100	60	92	225
	65	-	85	145	38	72.5	120	75	100	235
	80	-	100	165	45	82.5	131	89	108	260
	100	-	115	194	50	97	158	113	117	270
	125	-	135	210	55	105	180	140	140	320
	150	-	160	229	65	114.5	216	164	177	340
	200	-	200	243	80	121.5	268	205	200	390
	250	-	240	297	92	148.5	326	259	252	420
	300	-	-	338	-	169	-	300	270	510
CLASS 150	25	1	50	-	25	-	65	38	57	200
	40	1 1/2	60	-	25	-	84	49	63	205
	50	2	75	124	32	62	102	60	92	225
	65	2 1/2	85	145	38	72.5	121	75	100	235
	80	3	100	165	45	82.5	134	89	108	260
	100	4	115	194	50	97	172	113	117	270
	125	5	135	210	55	105	196	140	140	320
	150	6	160	229	65	114.5	221	164	177	340
	200	8	200	243	80	121.5	278	205	200	390
	250	10	240	297	92	148.5	333	259	252	420
	300	12	-	338	-	169	-	300	270	510

 

 

 

Preparation before installation of pneumatic ball valve:
1. Ensure that the installation position of the pneumatic pipeline ball valve is in the coaxial position, and the two flanges on the pipeline shall be kept parallel to confirm that the pipeline can bear the weight of the pneumatic pipeline ball valve. If it is found that the pipeline can not bear the weight of the pneumatic pipeline ball valve, the corresponding support shall be provided for the pipeline before installation.
2. To confirm whether there are impurities and welding slag in the pipeline, the pipeline must be blown clean.
3. Check the name plate of the pneumatic pipeline ball valve, and operate the pneumatic pipeline ball valve fully open and closed for several times to confirm that the valve can work normally, and then check all details of the valve once again to ensure that the valve is intact.
4. Remove the protective covers at both ends of the valve, check whether the valve body is clean, and clean the inner cavity of the valve body. Since the sealing surface of the ball valve in the pneumatic pipeline is ball shaped, even small impurities may cause damage to the sealing surface.
Installation of pneumatic pipeline ball valve:
1. Any section of the pneumatic pipeline ball valve can be installed at the upstream end, and the handle pneumatic pipeline ball valve can be installed at any position of the pipeline. If the pneumatic pipeline ball valve with actuator (such as gearbox and electro pneumatic actuator) is equipped, it must be vertically installed, and the inlet and outlet of the valve shall be in horizontal position.
2. The sealing gasket shall be installed between the flange of the ball valve and the flange of the pipeline according to the design requirements of the pipeline.
3. The bolts on the flange shall be tightened symmetrically, successively and evenly.
4. If pneumatic and electric actuators are adopted for pneumatic pipeline ball valve, the installation of air source and power supply shall be completed according to the manual.
Inspection after installation of pneumatic pipeline ball valve:
1. After the installation, start the pneumatic pipeline ball valve to open and close several times. The action should be flexible and the force should be uniform. The pneumatic pipeline ball valve should work normally.
2. According to the design requirements of the pipeline pressure, the sealing performance of the joint surface between the pneumatic pipeline ball valve and the pipe flange is tested after pressurization.