3.5 cu ft K-Series Portable Sandblast Pot – Pneumatic Pressure Hold System with #100 Metering Valve & #400 Pinch Valve, 1" Piping w/ Moisture Separator, 55' Twin-Line Hose & Pneumatic Handle #2 – Bronze Blasting Package

Part Number: 41-300-B
Compatible With: KEY HOUSTON #40300
Weight: 552.64 lbs
Warranty: 5-Year Limited / 10-Year Vessel Warranty

Overview

The 3.5 cu ft K-Series Portable Sandblast Pot (Bronze Package) is a compact yet industrial-grade abrasive blasting machine engineered for performance, durability, and portability.
Featuring a Pneumatic Pressure Hold System, #100 Metering Valve, and #400 Pinch Valve, this unit provides smoother control, reduced abrasive consumption, and dependable operation under continuous use.

Built with heavy-duty components such as galvanized piping, a moisture separator, and an emergency air tank, the K-Series is ideal for contractors and facilities that demand high reliability in portable blasting applications.

Bronze 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

Key Features & Benefits

A. Pressure Vessel

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

• Constructed 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

• Provides smoother starts and stops compared to pressure-release systems

• Improves efficiency and reduces abrasive waste

C. Emergency Air Tank

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

• Safety-enhanced design and reliability upgrade over legacy models

D. Heavy-Duty Moisture Separator

• Ensures clean, dry air to prevent moisture-related clogs and media contamination

E. 1″ Galvanized Piping

• Resists corrosion and supports steady airflow at high pressures

F. Full-Port Ball Valves

• Industrial-grade valves for unrestricted air control and long service life

G. Schedule 80 Heavy-Duty Nipples

• Designed to withstand abrasive wear for maximum durability

H. JIC-Fitted Pusher Line

• Eliminates gasket failures and simplifies maintenance

I. #100 Metering Valve / #400 Pinch Valve

• #100 Metering Valve provides precise abrasive flow control in the traditional K-Series design

• #400 Pinch Valve controls air and abrasive start/stop functions for responsive operation

J. Bag-Breaker & Screen Assembly

• Prevents debris entry during abrasive loading

K. Blow-Down Muffler

• Reduces noise levels during depressurization for a safer work environment

L. 6″ FAST-FILL™ Pop-Up

• Allows quick, efficient refilling to minimize downtime

Specifications

Applications

• Portable blasting operations and field maintenance

• Industrial fabrication and surface preparation

• Shipyards, pipelines, and bridge restoration

• Heavy equipment cleaning and paint removal

Compatibility

• OEM Replacement For: KEY HOUSTON #40300

• Compatible with K-Series Pressure Hold Systems and legacy #100/#400 valve configurations