Specifications

21
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• 1
1
/
4
”, 1
1
/
2
”, 2”, 2
1
/
2
”, 3”, 4”, 6”, 8”, 10”
• On/off type valve that opens fully at a low set point and closes tightly
at a high set point
• Ductile iron body and bonnet ASTM-A536 epoxy coated. Bronze
(ASTM B62) trim
• Diaphragm actuated, hydraulically operated, float controlled
• 1
1
/
4
”, 1
1
/
2
”, 2”, 2
1
/
2
”, 3”, 4”, 6”, 8”, 10”
• On/off type valve that either opens or closes upon receiving an
electrical signal to the solenoid pilot control
• Valve is furnished either normally open (energized solenoid to close)
or normally closed (energize solenoid to open)
• Ductile iron body and bonnet ASTM-A536 epoxy coated. Bronze
(ASTM B62) trim and pilots
• Stainless steel float and rod available. Single seated, diaphragm
actuated, hydraulically operated, pilot controlled
• Maximum temperature 180°F
• Pressure rated 150 class, 250 psi max
300 class 300 psi, threaded, 400 psi
• Globe or angle configurations available (specify when ordering)
• Single seated, diaphragm actuated, hydraulically operated, electrically-
actuated pilot controlled
• Maximum temperature 180°F
• Pressure rated 150 class 250 psi max
300 class 300 psi, threaded 400 psi
• Globe or angle configurations available (specify when ordering)
Model ZW104 150 lb. flange (1
1
/
2
” – 10”)
Model ZW104Y 300 lb. flange (2” – 10”)
Model ZW104TH Threaded (1
1
/
4
” – 3”)
Model ZW106 150 lb. flange (
1
/
2
” – 10”)
Model ZW106TH Threaded (1
1
/
4
” – 3)
Model ZW106G Grooved (1
1
/
2
” – 8”)
Model ZW106Y 300 lb flange (2” – 10”)
For Additional Information, reference WK-ACV catalog or
visit our web site.
Model ZW104G Grooved (1
1
/
2
” – 8”)
For Additional Information, reference WK-ACV catalog or visit
our web site.
OptionsOptions Typical Installation
Typical Installation
FeaturesFeatures ApplicationsApplications
Level control in tanks can be accomplished in many ways. One of the best ways is through the use of a
pilot controlled, non-modulating float valve such as the ZW104. The ZW104 will fully open when the tank’s
liquid level falls to a predetermined point. When the tank reaches the high set point, the ZW104 will close
drip tight and remain closed until the minimum set point is again reached.
The ZW106 is a pilot operated solenoid valve that either opens or closes upon receiving an electrical
signal. The ZW106 is a perfect valve to use with the Wilkins 375MS and EST. In this application, the
ZW106 is used to stop water flow should the relief valve of the backflow prevention assembly begin to
discharge. Not limited to this application, the ZW106 can be used anytime it is advantageous to open
or close a line electrically rather than mechanically. The ZW106 can be equipped in either a normally
open (energize to close) or a normally closed (energize to open) configuration.
The Model ZW104 float valve is commonly mounted above the high water level in a tank. Globe pattern
valves are supplied standard with the float control mounted on the right side of the cover as illustrated,
with a horizontal discharge. Angle valves are configured to discharge downward.
Float Valve – ZW104
Solenoid Control Valve – ZW106
Refer to Order Form on Web site
Supply
Tank
Stilling Well
MODEL ZW104
imer
E
S
lectric
olenoid
T
12" MIN.
30" MAX.
Model EST Application
Automatic Control Valves