6.5 cu ft K-Series Portable Blast Pot – Pneumatic Pressure Hold System with MPV Metering Valve & #400 Pinch Valve, 1-1/4" Piping, Moisture Separator & 55' Twin-Line Remote Control – Bronze Blasting Package

Part Number: 41-301-MPV-B
Compatible With: KEY HOUSTON #40301
Weight: 642.12 lbs
Warranty: 5-Year Limited / 10-Year Vessel Warranty

Overview

The 6.5 cu ft K-Series Portable Blast Pot (Bronze Package) is a heavy-duty, professional-grade blasting system designed for high-performance surface preparation.
It combines a Pneumatic Pressure Hold System with the proven MPV Metering Valve and #400 Pinch Valve for precise abrasive control and dependable cycling under continuous-duty operation.
This setup ensures consistent performance, reduced downtime, and smoother starts and stops, making it ideal for contractors, industrial maintenance, and coating professionals who require durability and efficiency in every blast.

Bronze Blasting Package Includes

• (1) 10-114BLK-050-3AL – 1-1/4″ Blast Hose Assembly Kit with Couplings (50′)

• (1) 1348-555 – #5 Tungsten Carbide, Poly Jacket Nozzle

Key Features & Benefits

A. Pressure Vessel

• 6.5 cu ft (185 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

• Delivers smoother starts and stops than traditional pressure release systems

• Reduces abrasive waste and air consumption

C. Emergency Air Tank

• Acts as a reserve to keep the pinch valve closed during compressor failure

• Provides enhanced safety and reliability under field conditions

D. Heavy-Duty Moisture Separator

• Ensures dry, clean air for optimal abrasive flow and performance

E. 1-1/4″ Galvanized Piping

• Corrosion-resistant and designed for long service life in harsh environments

F. Heavy-Duty Full-Port Ball Valves

• Allows unrestricted air passage for maximum blasting efficiency

G. Schedule 80 Heavy-Duty Nipples

• Built for extended wear resistance against abrasive materials

H. JIC-Fitted Pusher Line

• Eliminates gasket-related issues and simplifies maintenance

I. MPV Metering Valve / #400 Pinch Valve

• MPV Valve: Provides precise, adjustable abrasive flow control

• #400 Pinch Valve: Manages smooth on/off air and media operation

J. Bag-Breaker & Screen

• Prevents contaminants from entering during abrasive filling

K. Blow-Down Muffler

• Reduces noise levels during depressurization

L. 6″ FAST-FILL™ Pop-Up

• Allows faster, cleaner abrasive refilling

Specifications

Applications

• Industrial and mobile sandblasting operations

• Shipyard, tank, and structural steel surface prep

• Bridge and heavy-equipment restoration

• Corrosion removal and coating preparation

Compatibility

• OEM Replacement For: KEY HOUSTON #40301

• Fully compatible with all K-Series MPV / #400 Pneumatic configurations and accessories