Tenney Vacuum Test Chamber

Tenney Vacuum Test Chambers perform product testing and MIL-SPEC testing, and they can be incorporated into many commercial production processes. The chambers provide a complete vacuum system and control system that is pretested and ready to operate. You only need to connect the chamber to an electrical power source.

The basic vacuum chambers are designed to function at vacuum levels up to 20 mm Hg (80,000' altitude). Vacuum pump systems of greater capacities are available with vacuum capabilities up to 0.169 mm Hg (20,000').

Vacuum Test Chamber Features

  • Welded and reinforced with structural steel vacuum shells that are capable of supporting a full atmosphere of external pressure
  • Silicone gasket seals the chamber door
  • Vacuum pumping equipment and electrical control components are enclosed
  • Units feature a 2" (5 cm) diameter capped accessory port

The units are finished on the inside with Type 304 stainless steel and the exterior offers an attractive powder coating.

S Models (Vacuum Only)

  • Vacuum and control systems capable of creating vacuums to 20 mm Hg (80,000' altitude)
  • Ultimate vacuum capability is achieved within 45 minutes
  • Vacuum to 87 mm Hg (50,000') is achieved within 10 minutes
  • Vacuum level is automatically controlled via a pressure sensitive instrument and pump control equipment

SVO Models (High Temperature Vacuum)

  • Vacuum conditioning as described for S Models
  • VersaTenn V Control System
  • Brine heating system on workspace walls
  • Achieves temperatures from approximately 10ºC above ambient to +150ºC
  • Fully insulated workspace

Tenney Vacuum Test Chamber Options

  • Vacuum pumping equipment capable of ultimate performance of 8.4 mm Hg (100,000') 1.02mm Hg (150,000') 0.169 mm Hg (200,000')
  • Special sizes and configurations up to and including walk-ins
  • Recording instrumentation
  • Special ports and penetrations, electrical terminal posts and special high voltage lead-ins and windows on SVO models
  • Adjustable shelves
  • Temperature and/or vacuum safety shutdown / alarm
  • Casters
  • 15"x 15" (38 cm x 38 cm) window

Test Chamber Quality

TPS Thermal Product Solutions is a pioneer in the design and manufacturing of environmental test equipment. The Tenney Brand has been an industry leader since 1932. Our decades of experience, processes and procedures ensure quality and reliability of every test chamber or walk-in room we manufacture. Rest assured that you are purchasing a world-class piece of equipment built to perform and last.


We back our environmental test chambers with a comprehensive service organization. Factory trained, courteous and knowledgeable technicians provide on-site installation, maintenance and repair for your test chamber or room. In-house service technicians and a parts & service department stand ready to assist you. Contact our service department to inquire on preventive maintenance programs, extended warranties, calibrations services and more. For a full list of chamber services click here.


  • LinkTenn 32 Controller Software

    LinkTenn 32 Controller Software

    • interactive remote control and monitoring
    • alarm reporting and notification via email or fax
    • user-friendly profile program editor
    • logging, printing and graphing of process data
    • exporting of logging history data via CSV file for easy import into Microsoft Excel or analysis packages

  • VersaTenn V Temperature HMI Controller

    VersaTenn V Temperature HMI Controller

    • Two channel controller
    • Auto/ manual control
    • Pentium class processor
    • 8 MB flash disk on chip storage
    • USB flash disk port
    • RS-232 communications
    • Color LCD touch screen interface with real-time graphic displays
    • Microsoft Windows CE Operating System
    • Logic circuits automatically select cooling and heating modes
    • Near infinite number of programs and steps possible
    • RTD sensors for temperature measurement
    • 2 process inputs, 10 temperature control outputs, 6 event outputs
    • Alarm output for each channel
    • RS232 data communications


  • Chart Recorder

    Chart Recorder

    • Circular or strip type
    • Records temperature versus time
    • Some models include digital display
    • J thermocouple for temperature measurement

  • Dry Air Purge System

    Dry Air Purge System

    • removes unwanted moisture and process vapors from chamber
    • a chamber valve prevents chamber from becoming pressurized
    • self regenerating twin tower heatless dessicant type dryer
    • activated by an event output from main controller

  • GN2 Purge System

    GN2 Purge System

    • provides and inert atmosphere inside the chamber
    • minimizes moisture buildup
    • prevents condensation
    • prevents corrosion by eliminating oxygen in the chamber


Tenney Vacuum Test Chamber Specifications

Model (S) Vacuum Only

Model (SVO)
Vacuum with heat to 150°C




Interior Dimensions (WxHxD) 24" x 24" x 24" / 61 cm x 61 cm x 61 cm 30" x 30" x 36" / 76 cm x 76 cm x 91 cm 36" x 36" x 36" / 91 cm x 91 cm x 91 cm 48" x 48" x 48" / 122 cm x 122 cm x 122 cm
* Exterior Dimensions (WxHxD)
(S Models Only)
40½" x 64" x 42½" / 103 cm x 163 cm x 108 cm 46½" x 70" x 54½" / 118 cm x 178 cm x 138 cm 52½" x 76" x 54½" / 133 cm x 193 cm x 138 cm 58" x 90" x 68½" / 147 cm x 228 cm x 174 cm
Shipping Weight
Uncrated (Approx.)
1000 lbs 1500 lbs 2200 lbs 3800 lbs
Power Requirements 208V or 230V 1Ph 60Hz
(Other voltages optional)

* Add 2" (5cm) to (W x H x D) for SVO overall dimensions.

Control of conditions is as indicated on instrumentation furnished with chamber. Minor performance variations with window and accessories. Performance data is based on ambient temperature of +24°C (+75°F) at sea level on 60 Hz operation. For 50 Hz operation, performance will be reduced. Under certain programming conditions standard rates of change may vary. Consult factory for your specific requirements.