Q671F Pneumatic wafer thin ball valve introductuon
Q671F Pneumatic wafer thin ball valve is a new generation of ultra-short flange pitch ball valve developed by the introduction of Italian technology for domestic design, Q671F Pneumatic wafer thin ball valve is composed of single (double) action piston pneumatic actuator and ultra-thin ball valve.Q671F Pneumatic wafer thin ball valve can be equipped with valve positioner input control signal (4-20madc or 1-5vdc) air source can control operation.Q671F Pneumatic wafer thin ball valve Can also be equipped with stroke limit switch, solenoid valve, pressure reducing valve and 0.4 ~ 0.7mpa air source to achieve switching operation, and send out two pairs of passive contact signal indicating the switch valve.

Q671F Pneumatic wafer thin ball valve ball core channel shape rectangular, v-shaped and o-shaped.This series of Q671F Pneumatic wafer thin ball valve have the characteristics of compact structure, small volume, light weight and convenient installation.Therefore, Q671F Pneumatic wafer thin ball valve is widely used in the fields of petroleum, chemical industry, metallurgy, power plant, light industry, and so on, oil, water, gas and pulp or fiber fluid for automatic adjustment or cut off control.

Q671F Pneumatic wafer thin ball valve feature

Full bore design
Integral body
short lenhth ball type
Blow out proof stem
Fire safe construction
Anti static device
Stopper device
ISO 5211 mounting bracket
Wafer ends
Available with lever and worm geared operator
Materials: A216 WCB, A105N, A182 F304, F304L, F316, F316L, A351 CF8, CF8M, CF3, CF3M

Q671F Pneumatic wafer thin ball valve technical requirement

Nominal diameter DN（mm）		25	40	50	65	80	100	125	150
Rated flow coefficient Cv	Full chamber type	14	30	55	100	135	230	320	500
	Shrinkage chamber type	6	12	20	40	54	92	128	200
Double action pneumatic actuator		Air supply pressure 400KPa
Model	Torque（N.M）	PTFE packing , metal seal allow differential pressure
ATD63	23.5	2.35	0.94
ATD75	46.5	5.0	2.84	1.49	0.57	0.33
ATD88	73.2			2.39	0.99	0.62
ATD100	106				1.54	0.99	0.30	0.19
ATD125	221						1.29	0.80	0.39
ATD160	453						2.84	1.79	0.89
Single action pneumatic actuator		Air supply pressure 400KPa
Model	torque（N.M）	PTFE packing , metal seal allow differential pressure
ATS75	26.5	0.19
ATS88	44	1.19	0.09
ATS100	60.7	3.97	1.59	0.81	0.11
ATS125	126			2.19	0.89	0.59
ATS160	269					1.39	0.53	0.34
ATS200	467						2.84	1.79	0.89

1 Electric-Pneumatic (Pneumatic-pneumatic) positioner for regulating ball valve
2 Valve position transmitter
3 solenoid valve
4 limited switch
5 Air filter reducer