Series AP

Series AP

PWM or current operation
Open loop flow control
Also suitable for use with vacuum
Several versions available:
- with body in PVDF (size 16mm only)
- with rear flanged bodies
- with lower flanged bodies
- suitable for use with oxygen
- seals in FKM, NBR and EPDM

2/2-way proportional valves, NC
Sizes: 16 - 22 mm

Series AP directly operated 2/2-way proportional solenoid valves, NC, with nominal diameters range from 0,8 to 2,4 mm, can be used where an open loop flow control is required, with gas mixtures, to control free flows or blows, or emptying chambers using vacuum.

Series AP proportional valves have been manufactured to optimize and reduce friction and stick-slip effects. The output flow is proportional to the control signal. As they can work also in vacuum, a minimum working pressure is not required.

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General Data

Function	2/2 NC
Operation	proportional directly operated
Ports	M5 - G1/8 - with rear flanges - with lower flanges
Hysteresis	Size 16mm: 12% FS - Size 22mm: 10% FS
Repeatibility	Size 16mm: 7% FS - Size 22mm: 7% FS
Operating temperature	0 ÷ 60°C
Medium	filtered compressed air, unlubricated, according to ISO 8573-1 class 3.4.3, inert gas. All the valves are suitable for use with oxygen.
Installation	any position
Materials	body = brass / PVDF (size 16mm only) seals = NBR, FKM, EPDM
Nominal resistance	GP7 = 193 ohm - GPH = 48 ohm - U711 = 85 ohm - U712 = 22 ohm
Rated current	GP7 = 125 mA - GPH = 250 mA - U711 = 271 mA - U712 = 542 mA

NOTE: Having a counterpressure on the outlet connection of at least 25% of the inlet pressure ensures the good functioning of the valve and improves its performance.
Example: with inlet Pressure = 1 bar on the outlet connection, a min. counterpressure of 250 mbar is recommended.

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