3.5 cu ft K-Series Portable Sandblast Pot – Electric 12VDC Pressure Hold System with #100 Metering Valve & #400 Pinch Valve, 1" Piping and Moisture Separator

Part Number: 40-300-A
Compatible With: KEY HOUSTON #40300
Weight: 498.92 lbs
Warranty: 5-Year Limited / 10-Year Vessel Warranty

Overview

The 3.5 cu ft K-Series Electric Blast Pot provides reliable, controlled blasting performance in a compact and mobile configuration.
Featuring a 12 VDC Electric Pressure Hold System, it delivers consistent pressurization for smooth, efficient start-ups and reduced abrasive consumption.
Equipped with a #100 Metering Valve and #400 Pinch Valve, this unit offers precise media control and dependable operation for industrial, marine, and maintenance blasting applications.

📄 Documents:

• 📄 Brochure
• 📄 Manual
• 📄 How It Works
• 📄 Warranty

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 provinces

B. Pressure Hold System

• Keeps vessel pressurized when the control handle is released

• Provides smoother starts and stops than pressure-release systems

• Reduces air and abrasive waste

C. Emergency Air Tank

• Maintains pinch valve closure during compressor failure or power loss

• Improves safety and operational stability

D. Heavy-Duty Moisture Separator

• Removes condensation to ensure consistent abrasive flow

E. 1″ Galvanized Piping

• Corrosion-resistant design for long-term durability

F. Heavy-Duty Full-Port Ball Valves

• Maximizes air flow and system efficiency

G. Schedule 80 Heavy-Duty Nipples

• Withstands abrasive wear for extended service life

H. JIC-Fitted Pusher Line

• Eliminates gasket leaks and simplifies maintenance

I. #100 Metering Valve / #400 Pinch Valve

• #100 Metering Valve: Legacy-style design offering reliable abrasive control

• #400 Pinch Valve: Smooth on/off flow control for air and media

J. Bag-Breaker & Screen

• Prevents debris from entering the vessel during filling

K. Blow-Down Muffler

• Reduces noise during depressurization

L. Improved Electric Connection

• Weather-proof lock-out/tag-out connection box

• Rubber boot seal around control handle plug

• Prevents dust and insect intrusion

M. 6″ FAST-FILL™ Pop-Up

• Allows quicker abrasive refilling to minimize downtime

Specifications

Applications

• Industrial and portable sandblasting operations

• Marine and offshore surface preparation

• Bridge, pipeline, and steel maintenance

• Equipment restoration and coating removal

Compatibility

• OEM Replacement For: KEY HOUSTON #40300

• Fully compatible with K-Series #100 / #400 Electric Pressure Hold assemblies and accessories