3.5 cu ft K-Series Portable Sandblast Pot – Electric 12 VDC Pressure Hold System with MPV Metering Valve & #400 Pinch Valve, 1" Piping with Moisture Separator – Silver Blasting Package

Part Number: 40-300-MPV-C
Compatible With: KEY HOUSTON #40300
Weight: 527.32 lbs
Warranty: 5-Year Limited / 10-Year Vessel Warranty

Overview

The 3.5 cu ft K-Series Electric 12 VDC Sandblast Pot (Silver Package) is an industrial-grade, pressure-hold blasting unit designed for professional surface-preparation applications. Equipped with an MPV Manual Plunger Valve and a #400 Pinch Valve, this model delivers exceptional abrasive flow control and smooth operation.

The Electric 12 VDC Pressure Hold System keeps the vessel pressurized between blast cycles for greater efficiency and abrasive savings. The unit also features an Emergency Air Tank, Heavy-Duty Moisture Separator, and Weather-Proof Lockout Connection Box for maximum durability in demanding environments.

Silver Blasting Package Includes

• (1) 10-100BLK-050-3AL – 1″ Blast Hose Assembly Kit with Couplings (50′)

• (1) 1201-1173 – #4 Tungsten Carbide, All-Poly Nozzle

• (1) 122-9150 – Blast Suit, Lightweight, Large

• (1) 407701 – Luxury Double Palmed Gloves (Pair)

• (1) 407000-PFC – RPB® NOVA 2000™ Respirator Package

Key Features & Benefits

A. Pressure Vessel

• 3.5 cu ft (100 L) capacity rated for 150 PSI (10.3 BAR)

• Built to A.S.M.E. Section VIII Division 1 standards

• C.R.N. Certified for all Canadian provinces

B. Pressure Hold System

• Keeps vessel pressurized when control handle is released

• Smoother starts and stops than pressure-release systems

• Reduces abrasive waste and moisture accumulation

C. Emergency Air Tank

• Maintains pinch-valve closure if compressor fails or fuel runs out

• Safety feature improves reliability over legacy designs

D. Heavy-Duty Moisture Separator

• Ensures dry air supply for consistent media flow

E. 1″ Galvanized Piping

• Resists corrosion and supports efficient air delivery

F. Full-Port Ball Valves

• High-flow, industrial-grade design for extended service life

G. Schedule 80 Heavy-Duty Nipples

• Withstands abrasive wear and extends component life

H. JIC-Fitted Pusher Line

• Eliminates gasket failures and simplifies maintenance

I. MPV Metering Valve / #400 Pinch Valve

• MPV Manual Plunger Valve: simple, reliable control with a wide adjustment range for abrasive flow

• #400 Pinch Valve: manages air and media start/stop functions for responsive operation

J. Bag-Breaker & Screen Assembly

• Prevents debris from entering the vessel during loading

K. Blow-Down Muffler

• Reduces noise levels during depressurization

L. Improved Electric Connection

• Weather-proof Lock-Out/Tag-Out box for safe service access

• Rubber boot seal around control handle plug prevents debris and insect intrusion

M. 6″ FAST-FILL™ Pop-Up

• Speeds up abrasive loading to reduce downtime

Specifications

Applications

• On-site industrial sandblasting operations

• Automotive and metal restoration projects

• Shipyards, bridge and pipeline maintenance

• Surface prep for coatings and corrosion removal

Compatibility

• OEM Replacement For: KEY HOUSTON #40300

• Works with K-Series Pressure Hold Systems and MPV/#400 Valve Configurations