NOSHOK Vacuum-Breaker Valve
 
 

Size & Model Number:
Brief Description
 Model Specifications:
Diagrams:
Ordering Information:
Special Ordering:
 Vacuum-Beaker Solenoid Valves

Stock Model Specifications
Dimensions and wiring Diagrams
Standard Ordering Information
Contact Us for Details on Custom Thermometers


NOSHOK's vacuum-breaker solenoid valve is engineered to prevent pump lubricant from fouling the vacuum lines and chamber.

When the vacuum pumb is in operation the valve is energized and completes the vacuum circuit. When the pump is shut off, the valve is de-energized and opens permitting atmospheric pressure to break the vacuum. This prevents pump oil from entering into the system.		 A filter element on the valve's air inlet prevents airborn particle form enterin the system.

To order, select the desired unit for the charts; give model number, coil voltage, and temperature rating (class "A or class "H". Tor order universal mount bracket, add the suffix "U" to the valve's model number.

 
SPECIFICATIONS
Body and 3-Way Connection Brass or 303 Stainless steel
Plunger Tube 304L Stainless steel
Plunger and Stationary Core 430F Stainless steel
Plunger Seals Buna N standard (see optional features)
Gasket
(body to pluger tube)		 Teflon
Plunger Spring 302 Stainless steel
Shadign Coil
(A.C. valves only)		 Silver alloy
O-Ring seal
(3-Way adapter connection)		 Viton** standard
Grommet electrial connection Nylon (200 ºF max ambient)
Coil housing,
gereral piurpose		 Steel, black powder coated finish
FUNCTIONAL DATA
  1. TTemperature Ranges of Process Media:
    Buna N plunger seals -40 º to +212 ºF ( -40 º to +190 ºC)
    Viton** plunger seals -20 º to +350 ºF ( -29 º to +176 ºC)
    Telflon** plunger seals -350 º to +350 ºF ( -212 º to +176 ºC)
    Polyurethane -65 º to +200 ºF ( -55 º to +93 ºC)

  2. Maximum Allowable Total Coil Temperature
    Class A coils 221 º
    Class H coils 356 º

  3. Response Time (Full Stroke of Plunger)
    115 volt, 60 Hertz, A.C. .015 sec. max. when energized
    .018 sec. max. when de-energized
    12 volt C.C. .022 sec. max. when energized
    .015 sec. max. when de-energized

  4. Electrical Connection
    Standard Nylon grommet and knock out hole for 1/2" conduit


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NOSHOK Series Solenoid Valves
Vacuum-Breaker Valve
AC Valves
Model No.
Port Fitting
V90A104
V90A304
V90A904
V90A504
1/8" Female NPT
1/4" Female NPT
1/8" Gyrolok® Tube
1/2" Gyrolok® Tube



NOSHOK Series Solenoid Valves
Vacuum-Breaker Valve
Optional Coils
Class "A"
Class "H"
50Hz 60Hz
24V
115V*
230V		 24V
115V
208V
230V
460V
50Hz 60Hz
115V
230V		 24V
115V
230V



NOSHOK Series Solenoid Valves
Vacuum-Breaker Valve
DC Valves
Model No.
Port Fitting
V90D104
V90D304
V90D904
V90D504
1/8" Female NPT
1/4" Female NPT
1/8" Gyrolok® Tube
1/2" Gyrolok® Tube


NOSHOK Series Solenoid Valves
Vacuum-Breaker Valve
Optional Coils
Class "A"
Class "H"
12
24*
28
110
220
12
24
110

* Standard...supplied unless otherwise specified

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