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Pneumatic V-flange ball valve

Product model: VQ647H / Y / F

Nominal diameter: DN25 ~ 300mm

Pressure range: PN1.6MPa ~ 4.0Mpa

Service temperature: - 29 ℃ ~ 425 ℃

Applicable media: oil products, pulp, sugar solution, solid particles

Valve material: stainless steel 304, 316L

Structure: fixed ball valve

Supporting accessories: solenoid valve, positioner and position switch

Air source accessories: air source treatment triplet

Product details

PRODUCT OVERVIEW

Pneumatic v-flange ball valve is a control valve with right angle high rotation structure. It is composed of high-performance pneumatic actuator and v-flange ball valve. The ball center is designed with a special V-notch. There is no clearance rotation between the ball center and the valve seat, which has good shear strength and self-cleaning performance. By matching with positioner and solenoid valve, it can realize application proportion and regulation, as well as accurate flow characteristic control. Pneumatic v-flange ball valve has a wide range of applications, especially for oil, pulp, sugar, solid particles, fiber and turbid liquid medium pipelines. It is used as the connection, cut-off and adjustment of medium.

STRUCTURAL FEATURES

1. It has excellent regulation characteristics: the pneumatic V-shaped ball valve has an approximately equal percentage natural flow characteristic and an adjustable ratio of up to 300:1. Therefore, the pneumatic V-valve can provide accurate control over a wide range of changes.

2. The opening and closing parts adopt V-shaped ball structure, which solves the problem of easy deposition of medium in the valve chamber.

3. Pneumatic V-shaped ball valve adopts double bearing structure, with high mechanical stability and small starting torque, which ensures that the valve has good sensitivity and induction speed.

4. Great reliability (safety): the valve body is a whole, firm and durable, the operation is not affected by pipeline pressure, and the leakage of the valve body can be avoided.

5. Superior sealing performance of metal valve seat: pneumatic V-shaped ball valve adopts movable metal valve seat, self-service compensation function, and has superior sealing performance and long service life.

MAIN TECHNICAL PARAMETERS

Nominal diameterDN	25	32	40	50	65	80	100	125	150	200	250	300
Rated flow coefficientCv	32	43	78	90	160	250	360	610	1120	1850	2950	3700
Nominal pressure	PN1.6、2.5、4.0、6.4MPa
strength test	2.4～9.6MPa
Sealing test	1.76～7.0MPa
Flow characteristics	Approximate equal percentage
Valve plate angle (°)	0 ° ~ 90 ° (adjustable)
Allowable leakage level	Soft seal: zero leakage Hard seal: ≤ rated CV × 0.001%				软密封：VI微气泡级，金属密封：≤额定CV×0.065%
Action time (s / 90 °)	8.5～30				36～60
Adjustable ratio	250:1						300:1
Configure actuator	GT、SR、ST、AT、AW series single and double acting pneumatic actuator
control mode	Switch type (switch two position control), regulating type (4 ~ 20mA control)

TECHNICAL PARAMETERS OF ACTUATOR

Actuator model	GT、SR、ST、AT、AW series single and double acting pneumatic actuator
Air supply pressure	0.4～0.7MPa
air connection	G1/4"、G1/8"、G3/8"、G1/2"
ambient temperature	-30～+70℃
Action form	Single acting actuator: air closed (b) -- valve position open (FO) in case of gas loss; Gas open (k) -- valve position closed (FC) in case of gas loss Double acting actuator: air closing (b) -- valve position holding (FL) in case of gas loss; Gas open (k) -- valve position hold (FL) in case of gas loss
Accessories available	Positioner, solenoid valve, air filter pressure reducer, holding valve, travel switch, valve position transmitter, handwheel mechanism, etc

EXECUTIVE STANDARD

Design and manufacturing	GB12237-89、API608、API 6D、JPI 7S-48、BS5351、DIN3357
Flange size	JB/T74～90、GB9112～9131、HGJ44～76、SH3406、ANSI B16.5、JIS B2212～2214、DIN2543
Structure length	GB12221-89、ANSI B16.10、JIS B2002、NF E29-305、DIN3202
Inspection and test	JB/T 9092、API 598、GB/T13927

FLOW CHARACTERISTICS (NATURAL FLOW CHARACTERISTIC CURVE OF V REGULATING BALL VALVE)

V调节球阀的固有流量特性曲线图

MATERIAL OF MAIN PARTS

Nominal diametermm		DN15-DN300
Material code		C	P	R
Main parts	Valve body	WCB	ZG1Cr18Ni9Ti	ZG1Cr18Ni 12Mo2Ti
	Sphere	2Cr13	1Cr18Ni9Ti	1Cr18Ni12MoTi
	Valve stem	2Cr13	1Cr18Ni9Ti	1Cr18Ni12MoTi
	Seal ring	Reinforced polytetrafluoroethylene, para polyphenylene
	Filler	Polytetrafluoroethylene, flexible graphite
Applicable working conditions	Applicable media	Steam, water, oil		Acetic acid
Applicable working conditions	Applicable temperature	-29℃~425℃

MAIN CONNECTION DIMENSIONS

Nominal diameterDN(mm)	25	32	40	50	65	80	100	125	150	200	250	300
L	102	102	114	124	143	165	194	213	229	243	297	338
L1	62	62	62	75	80	100	115	130	160	200	240	334
H	60	60	65	95	105	120	140	155	165	205	240	270
H1	277	285	305	364	379	389	402	426	453	473	540	590
A	140	140	140	164	164	190	210	247	276	348	378	524
PN1.6MPaFlange size
D	115	140	150	165	185	200	220	250	285	340	405	460
D1	85	100	110	125	145	160	180	210	240	295	355	410
D2	65	76	84	99	118	132	156	184	211	266	319	370
n-φd	4-14	4-18	4-18	4-18	4-18	8-18	8-18	8-18	8-22	12-22	12-26	12-26
PN2.5MPaFlange size
D	115	140	150	165	185	200	235	270	300	360	425	485
D1	85	100	110	125	145	160	190	220	250	310	370	430
D2	65	76	84	99	118	132	156	184	211	274	330	389
n-φd	4-14	4-18	4-18	4-18	8-18	8-18	8-22	8-26	8-26	12-26	12-30	16-30

Pneumatic V-flange ball valve

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