Valves and Controls - Norton Sandblasting Equipment

Valves and Controls

Thompson Valve II XLThompson Valve II XL (Extended Life)
Part Numbers:
1-1/2" with Tungsten Carbide: SM2153-008
1-1/4" with Tungsten Carbide:

The new Thompson Valve II Extended Life (TVII XL™) is the latest innovation in the industry-leading Thompson® Valve line. It is engineered for maximum durability and life in the harshest applications, performing best when used with the most aggressive abrasives such as aluminum oxide and steel grit. No other valve offers the performance and durability of the TVII XL. Tests indicate that service life is extended up to five times for dramatically minimized down time, all while maintaining the Schmidt® standard of precision abrasive metering the Thompson Valve line is renowned for.In addition to the life-extending design upgrades, the valve's ergonomic improvements make the TVII XL the most advanced and most easily maintained metering valve available.

  • Improved Virtual Position Indicator (VPI) gives operators a 1:1 size relation to valve orifice
  • Control system signal ports relocated for easier access when valve is in place
  • Heavy duty castings with extra material in high wear areas
  • Redesigned piston is recessed for added spring stability, keeping valve actuation quick and smooth
  • New clean-out plug design has straight threads and face seal for an air tight seal, no Teflon necessary
  • Two improved seals, down from three, to reduce friction
  • Advanced sleeve design with internal wiper to prevent dust migration and mechanical binds; unique geometry allows easy removal

View or download the pdf for the Thompson Valve II XL

TeraValve XLTeraValve XL
Pressure Hold Conversion Kit
Part Numbers:
1-1/2" with Tungesten Carbide: SM009-082
1-1/4" with Tungsten Carbide:

The new TeraValve™ abrasive metering valve is revolutionary in its ability to provide high performance, pressure hold blasting at a cost effective price point. It is the result of a new approach in thinking, combined with the tradition of Schmidt® expertise in design and manufacturing. The TeraValve is diaphragm activated, simplifying overall operation and maintenance. The new Schmidt extended life (XL™) technology is incorporated for durability and long life, even when the valve is used with harsh abrasives. The compact size fits easily onto low clearance blast pots or blast cabinets without modification, making it easy to convert automatic blowdown pots to a more efficient and productive pressure hold system.

Install a Schmidt® TeraValve™ Conversion Kit on your blast pot and immediately see the productivity, abrasive efficiency and low maintenance benefits of pressure hold versus traditional non-pressure hold blast pots
  • Compact design: Easily retrofit MicroValve® pots without vessel modification
  • Upgrades pressure hold blast cabinets
  • Utilizes the Schmidt® XL™ technology to better withstand aggressive (Aluminum Oxide)/ dusty abrasives
  • Diaphragm actuated valve is highly dust tolerant
  • Longer life than the classic Thompson® Valve and TVII™
  • Disassemble easily even after extended use
  • Fine-tuned, precise abrasive metering
  • Includes our best performing cleanout port
  • Rugged, corrosion-resistant stainless valve body
  • Virtual Position Indicator (VPI™) provides a visual representation of abrasive flow setting so metering is simple to set and maintain

View or download the pdf for the TeraValve and Conversion Kit

TeraValve XL Pressure Hold System Conversion Kit Information

Micro Valve 3 (MV3)
Part Numbers:
1-1/2" Urethane Sleeve: SM2128-108
1-1/4" Urethane Sleeve: SM2128-107

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The Schmidt MV3 (Microvalve III) abrasive metering valve is the newest innovation in the family of industry leading Schmidt abrasive metering valves. The MV3 offers the proven productivity and safety advantages that Schmidt valves deliver to abrasive blasting operations through the precise metering of abrasive, along with an extended the service life, an improved clean out port, and easy access to wear components for safe, efficient maintenance. Note: The MV3 can be a direct replacement for the MV2, with no need for modification.


  • Service life is extended by enhancements, including:
    - Stainless steel machined body
    - Abrasion resistant steel base
    - Thick rugged steel mounting nipple

  • Overall valve design enhances maintenance efficiency by controlling downtime while delivering precise control of abrasive flow
  • Flanged style cleanout provides easy access to and removal of debris
  • Virtual Position Indicator (VPI™) under the knob allows for quick and consistent abrasive flow setting to optimize productivity
  • Specifications

    Body: Quality stainless steel
    Base/Nipple: High strength, hardened steel
    Sleeve: Polyurethane
    Inlet Media Connection: 1 1/4" NPT
    Piping Sizes: 1 1/4", 1 1/2"
    Length: 7 1/2"
    Width: 6 3/4" - 7 1/2"
    Height: 5" - 5 1/2"
    Weight: 7.85 lbs

Micro Valve II (MV2)
Valves Frequently Asked QuestionsPart Numbers:
1-1/2" Urethane Sleeve: SM2127-108
1-1/4" Urethane Sleeve: SM2127-107

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The MV2 is an abrasive metering valve under the Schmidt line of quality air blast products. The MicroValve has been the accepted industry standard. Now, the MV2 raises the standard set by the Schmidt MicroValve. This innovative valve is more productive, easier to maintain and saves the contractor time and money.

  • New Virtual Position Indicator (VPI) allows a user friendly interface for precise and consistent abrasive flow
  • Higher controlled abrasive flow rate
  • Using the cleanout, obstructions can be cleared without removing valve from blast vessel
  • Components made from durable, abrasive resistant materials
  • Uses the same plunger seal as the rugged Thompson Valve II
  • Has fewer components
  • Easy plunger removal and installation - no drive pin
  • Can be rebuilt while mounted on blast vessel
  • Alignment bosses on the base make reassembly a snap
  • Pressure bypass improves abrasive flow and reliability

Click here for a printable comparison between the MicroValve, MV2 and MV3 (pdf file).
Click here to view the parts diagram for the MV2 (includes rebuild kit)

Part Number: SM2223-000

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The ComboValve Does Double Duty

Replacing the Need for Two Valves

The ComboValve is a normally closed, self sealing, fail-safe valve that combines the functions of the air inlet valve and exhaust valve, eliminating premature failure of the exhaust system. It is controlled with either pneumatic or electric remote controls. None of the usual wear or failures found in other blowdown systems can occur with a ComboValve. The ComboValve eliminates the need for abrasive traps, expensive plungers and diaphragms that can cause frequent, unscheduled and costly downtime.
“ One Less Valve is The Advantage”
“ The ComboValve reduces costly downtime”

  • One valve does the job of two
  • Simple design is easy to disassemble and maintain
  • Rugged corrosion resistant construction
  • For safety, spring maintains valve in off position until activated by operator
  • Uses common ¾” 4-ply blast hose for exhaust
  • Extended length exhaust hose can be used to port exhausted air to any desired location
  • Assembled by Axxiom technicians with Schmidt experience
  • All Axxiom valves undergo a thorough quality check before they are shipped

Click here to view the ComboValve parts diagram.

Thompson Valve II (TV II)
Part Numbers:
1-1/2" with Urethane: SM2152-108
1-1/4" with Urethane: SM2152-107

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The second generation Thompson Valve II is designed to provide the ultimate in metering performance. It is a normally closed, self sealing, abrasive metering valve with instant, smooth response to either pneumatic or electric deadman controls.
This fail-safe valve shuts off abrasive flow to the nozzle and seals the tank at the
same instant. The Thompson Valve II is ideal for multiple outlet use and is easily
adaptable to most existing blasting systems.

• The ultimate in metering performance with larger aperture
• Fail-safe valve shuts off abrasive flow to the nozzle and seals the vessel at the same instant
• Smooth response to either pneumatic or electric deadman controls
• Easily adapted to most existing ASME blast systems
• Ideal for multiple outlet use
• Using the cleanout, obstructions can be cleared without removing valve from blast vessel
• Breather vents, redesigned spring and triple plunger seals add to the life of the Thompson Valve II
• Multiple design features for ease of service
• Remote abrasive cutoff is available allowing the operator to stop the flow of media while continuing a constant flow of air so abrasive can be cleared from the blast hose

Click here to download the pdf information sheet for the Thompson Valve II.

Click here to view the Thompson Valve II Parts Diagram.

G2 Deadman Control
Part Number: SM2263-002

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The Schmidt G2 Deadman control has all the features and
benefits most asked for by blast operators. The G2 offers an unbeatable
combination of operator safety, unmatched performance, rugged durability and dependability.

• Made from impact resistant materials that stand up to abusive conditions
• Response time reduced by over 30%
• Redesigned airflow reduces signal delay on long hoses
• Made to connect quickly and correctly every time
• New reversed hinge minimizes jams caused by dirt and debris
• Larger lever takes 67% less force to depress
• Can be changed easily for right or left hand operation

Click here to view the parts diagram for the G2 Deadman Control.