The Sentinel Metering Valve is a pneumatically-operated valve without an Abrasive Cutoff Switch. It is well-suited for all common blast media coarser than 50 mesh. The sentinel is compatible on classic blast machines 2 cuft and larger equipped with a pressure release remote (either pneumatic or electric). This valve requires 50-70 PSI to fully open the plunger. This abrasive metering valve has a 1-1/2" NPT connection to the pot.
Benefits:
- Metering and valve actuation are separate functions so wear and tear of the metering assembly can be replaced quickly and inexpensively in the field.
- The fail-to-safe design automatically stops the flow of media if either air or electric power is interrupted.
- Can be configured for pressure-hold or pressure-release blast machines.
See the bottom of the product manuals for diagrams of additional compatible products.
Related Parts (40) Parts Included (40)

1/4 Inch Flat Washer
#03116
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#03116
$4.04
506

Brass Adaptor, 1/8 inch NPS, MJIC
#01940
$8.66
#01940
$8.66
247

Clemco Spring, Compression, 5/8 inch x 1-11/1…
#01982
$17.90
#01982
$17.90
324

Connector, 1/8" brass hex
#01962
$9.82
#01962
$9.82
264

Drain Petcock, 1/4 inch NPT
#01993
$25.73
#01993
$25.73
267

Gauge Unit for FSV & Sentinel Valves
#02433
$37.56
#02433
$37.56
495

Handle Bolt Spacer for FSV & Sentinel Valves
#02431
$16.75
#02431
$16.75
493

Hitch Pin, cotter 1/4 inch - 5/16 inch
#20245
$4.04
#20245
$4.04
507

Inspect Plate, FSV - MPV - PVR - Sentinel Val…
#02440
$26.78
#02440
$26.78
500

Metering Valve Handle, Heavy Duty
#20498
$68.01
#20498
$68.01
491

Muffler, breather, ACS, 1/8 inch
#07657
$21.53
#07657
$21.53
263

Nipple, 1-1/2 inch x close
#01791
$27.30
#01791
$27.30
482

Nipple, 1-1/4 inch x closed
#01717
$16.75
#01717
$16.75
537

Nut, 1/2 inch NC Hex Head
#03511
$4.04
#03511
$4.04
504

Pipe Wye, 1-1/4 inch
#01818
$46.18
#01818
$46.18
484

Pool Pal Extension Leg Cap Screw
#03054
$3.47
#03054
$3.47
1110

Screw, 1/2 inch x 2 1/2 inch hex head
#03457
$4.62
#03457
$4.62
536

Screw, 5/16 inch x 1 1/4 inch hex head
#19509
$4.04
#19509
$4.04
535

Screw, 5/16 inch x 3/4 inch hex head
#03151
$4.04
#03151
$4.04
529

Sentinel Cylinder Cap
#20512
$37.56
#20512
$37.56
524

Sentinel Metering Plate and Stem (Course Abra…
#20499
$103.53
#20499
$103.53
532

Sentinel Metering Plate, Urethane (Fine Abras…
#21438
$121.80
#21438
$121.80
533

Sentinel Packing Gland
#21021
$45.68
#21021
$45.68
534

Sentinel Piston Cup
#20515
$50.24
#20515
$50.24
526

Sentinel Seal Kit, Lower Segment
#22389
$31.97
#22389
$31.97
523

Sentinel Seal Kit, Upper Segment
#22388
$82.22
#22388
$82.22
522

Sentinel Seat Plate
#20497
$63.95
#20497
$63.95
531
Sentinel Valve Piston Shut-Off
#20494
$122.00
#20494
$122.00
1152

Sentinel Wear Sleeve
#20495
$100.49
#20495
$100.49
530

Sentinel, Flange Adapter w/ Inspect Plate
#20513
$82.22
#20513
$82.22
540

Sentinel, Lower Body
#20511
$106.58
#20511
$106.58
539

Set Screw, 1/4-NC x 1/2 inch Square Head
#03080
$4.04
#03080
$4.04
496

Spring, Sentinel and Auto Quantum Valve
#20600
$74.10
#20600
$74.10
527

Stud
#02436
$15.59
#02436
$15.59
497

Valve Handle Clevis Pin 1/4 inch x 1-3/8 inch
#20246
$5.78
#20246
$5.78
494

Valve, 3-way, ACS, manual, 1/8 inch
#07658
$83.23
#07658
$83.23
543

Valve, Upper Body, Sentinel
#20514
$395.01
#20514
$395.01
528

Washer, 5/16 inch flat
#03216
$3.47
#03216
$3.47
538

Wing Nut, 1/4-NC
#03113
$4.04
#03113
$4.04
492

Wing Nut, 5/16-NC
#03213
$4.04
#03213
$4.04
502