ph | 03 9729 3250 e | sales@psiautomation.com.au
ph | 03 9729 3250
e | sales@psiautomation.com.au
ph | 03 9729 3250 e | sales@psiautomation.com.au
ph | 03 9729 3250
e | sales@psiautomation.com.au
7321B 2/2 pilot operated valves are the best solution anywhere a perfect control media, such water, steam, and light oils, is required.
This product line provides a high flow rate, a fast reaction time, and a superior reliability in a robust and modern design.
Valve body: CW617N UNI EN 12165:98, Forged Brass
Enclosing tube: AISI 304 Stainless Steel
Plunger: AISI 430F Stainless Steel
Spring: AISI 302 Stainless Steel
Seals: NBR (Buna N) Standard – EPDM, FKM (Viton) options
Shading ring: Copper
7321B Series can be used to control water, hot water, and steam.
Used in plumbing, industrial washing machines, car wash installations, cooling of machine tools, hydrocleaners, autoclaves, irrigation systems, and more.
Valves can be mounted in any position. It is however recommended to install them with the coil in a vertical
position above the body.
These valves have been developed to achieve the best performances for water, steam and light oils (up to
2°E). 7321B Series can not be used with gases and air.
We recommend choosing NBR versions for water (max. temp. 90°C), FKM version for water/light oils control (applications up to 140°C) EPDM version for superheated water and steam (up to 140°C)
This is an encapsulated assembly comprising a coil, integral magnetic iron path, and snap-on plug connection.
The synthetic material encapsulation provides an effective compact housing, offering full protection against dust, oil, water, etc.
Ease of mounting in a confined space – offers shock and corrosion protection – simplifies conversion of existing equipment to other requirements, etc.
AC Voltages and Hz: 24/50, 48/50, 110/50, 220-230/50
DC Voltages: 24, 48, 110
IP65 according to IEC / EN 60529 standards (with DIN plug).
BSP Port Sizes for Normally Closed: 3/8″, 1/2″, 3/4″, 1″, 1¼”, 1½”, 2″
2½” and 3″ available for Normally Closed with Speed Control
BSP Port Sizes for Normally Open: 3/8″, 1/2″, 3/4″, 1″, 1¼”, 1½”, 2″, 2½”, 3″
NPT Port Sizes for Normally Closed: 3/8″, 1/2″, 3/4″, 1″, 1¼”, 1½”, 2″
NPT Port Sizes for Normally Open: 3/8″, 1/2″, 3/4″, 1″, 1¼”
Seal: NBR (Standard,), FKM, EPDM
7321B Series (NC version only) can be ordered with Manual override to operate the valve without connecting the coil. The control consists of a slotted-head screw for a screwdriver and has two possible positions:
Closed: The letter “C” is in the upper position of the screw head
Open: The letter “A” is in the upper position of the screw head
Manual override must be restored to its original position (Closed) to operate the valve through the solenoid control.
Standing in its closed position, the valve operates normally when the coil is energised/de-energised.
Manual and speed control are standard on 2 ½” and 3″ versions.
Parker 7321B Series (NC version only) is available with a Speed control option. The closure time of certain types can be changed by means of the adjusting screw. The latter, by acting as a throttle on the inlet equalisation (pilot) hole of the valve, slows down the closure speed of the valve, thus reducing the water hammer effect.
The regulation range is as follows:
Screw fully open: Max. closure speed
Screw fully closed: Valve always open
See data sheet for details of shut-off response time with speed control option.
Our team of experts can find the solution. With our extensive range of solenoid valves, we have the opportunity to provide you with a customised solution for your specific needs.
Fill in our Solenoid Valve form with your specifications here, and let us select the best valve for you