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Manual Sand Valve
Clemco 21051 0.5 Cu. Ft. 1/2 pipe Portable Blaster With TLR50 Remote Control System & MSV Grit Valve

Clemco 21051 0.5 Cu. Ft. 1/2 pipe Portable Blaster With TLR50 Remote Control System & MSV Grit Valve

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The CLEMCO Model 1028 0.5 Cu. Ft. 21051 Portable Blaster With TLR50 Remote Control System & MSV

Requirements for Operation: (These items are required but not all are included with this equipment)

  • Clean, dry, compressed air of sufficient volume to maintain desired pressure at the nozzle. Refer  Blast Off 2 booklet (publication stock no. 09294).
  • Minimum 12 cfm at 50 psi needed to close the pop-up valve and pressurize the blast machine.
  • OSHA-required remote control system that interrupts blasting if operator should lose control of the nozzle when blast machine is pressurized. (Included)
  • NIOSH-approved, type CE, supplied-air respirator.
  • Grade D breathing-air supply as defined by Compressed Gas Association Commodity Specification: G-7.1 (Refer to
  • Abrasive blast media specifically marketed for abrasive blasting and appropriate for your application.
  • Appropriate blast suit, work boots, hearing and eye protection.

Description of Operation:

The operator controls blasting from a remote control handle at the nozzle. Pressing the handle starts blasting; releasing it stops blasting. The blast machine contains abrasive and meters it into the compressed air stream.


  • One-man portable industrial-quality blast machines manufactured to ASME code.
  • Industrial-quality valves, piping and fittings designed to maximize air flow and minimize energy required to operate the system.
  • MSV abrasive metering valve maintains smooth, consistent, adjustable media flow.

CLEMCO Model 1028 0.5 Cu. Ft. 21051 Portable Blaster With TLR50 Remote Control System & MSV Grit Valve Only Features Include:

  • Full Flow Stainless Steel Teflon-Sealed Ball Valves With Brass Body
  • Semi-Elliptical Head For Larger Storage Of Abrasive
  • Urethane-Coated Pop-Up Valve With External Sleeve For Long Wear Life & Fast Pressurization
  • Large Inspection Door For Easy Access To Inside
  • Heavy-Gauge Construction Pressure Vessel Fabricated For Rugged Field Service
  • Built To ASME Standards
  • Conical 35 Degree Bottom Ensures Total Use Of Abrasive & Uninterrupted Abrasive Flow
  • 45 Degree Abrasive Flow Into Air Stream
  • Heavy Duty Piping Assembled Tightly Against Tank Avoids Unnecessary Protrusions
  • Flexible Pusher Line Guarantees Air Flow Without Pressure Loss
  • Mounted On Two Heavy-Duty Rubber Wheels For Easy Portability

The MSV is a manual valve suited for expendable media; it is used on our 1/2-
and 1-cubic foot machines.

Manual Sand Valve

(-) MSV Metering Valve .... 01247 
1. MSV top casting ............ 01258 
2. Gasket, valve body........ 01260 
3. Metering plate & stem ... 01261 
4. O-ring............................. 00794
5. Pin, spring...................... 01263 
6. Washer, nylon................ 01266 
7. MSV bottom casting ...... 01259 
8. Spring, 17/32” OD X 1”.. 02178 
9. MSV Handle................... 01262 
10. Cap screw, 5/16-NC x 1-3/4”.... purchase locally
11. Nut, 5/16-NC hex... purchase locally

    Approvals and Certifications
    Clemco's quality management system is ISO 9001-2008 certified.

    Blast machine pressure vessel built to American Society of Mechanical Engineers (ASME) specifications for 150-psi working pressure. Vessel is hydrostatically tested and National Board-certified.

    Remote control system complies with OSHA regulation 1910.244 (b).


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