8.0 cu ft Stationary Dual-Chamber Blast Pot – Single Outlet Pneumatic Sandblasting System

Part Number: 888-0631-33944PB-E
Capacity: 8.0 cu ft (225 liters)
Operating Pressure: 150 PSI (10.3 BAR)
System Type: Dual-Chamber Pneumatic Pressure Hold
Height: 69″ OAH
Warranty: 5 Year / 10 Year Limited Warranty *

Overview

The Pirate Brand® 8.0 cu ft Stationary Dual-Chamber Blast Pot is engineered for continuous industrial blasting, combining dual-chamber pressure hold technology with a single-outlet Big Gun Full Flow System. This configuration enables uninterrupted blasting—allowing the upper chamber to refill while the lower chamber remains pressurized—eliminating downtime for maximum productivity.

Built for heavy-duty use in blast rooms, shipyards, fabrication facilities, and industrial maintenance operations, this system offers consistent performance, corrosion-resistant construction, and superior air and abrasive flow for high-efficiency blasting.

Continuous Operation Dual-Chamber System

Unlike traditional single-chamber blast pots that must be depressurized for refilling, the dual-chamber design allows the upper chamber to recharge abrasive media while the lower chamber continues to operate under pressure.
This innovative setup ensures a constant workflow and reduces overall blasting time, ideal for high-output industrial operations.

Advantages include:

• Continuous blasting with no refilling downtime.

• Higher production output with consistent media flow.

• Increased equipment longevity through reduced cycling stress.

• Reliable performance under demanding shop and field conditions.

Key Features & Benefits

• 8.0 cu ft Dual-Chamber Capacity – 3.25 cu ft upper chamber and 4.19 cu ft lower chamber (6.73 cu ft usable total).

• Pneumatic Pressure Hold System – Maintains steady operating pressure for continuous performance.

• Big Gun Full Flow System – Zero-pressure-drop design maximizes abrasive and air efficiency (1 PSI = 1.5% production gain).

• APV II Metering Valve (Tungsten Carbide Sleeve) – Quadruple-seal plunger design eliminates carry-over and jamming while ensuring precision abrasive control.

• Combination Valve Integration – Dual-function system responsible for top-chamber cycling in dual-chamber operations.

• NEMA 4 Rated Control Enclosure – Protects dual-chamber cycle controls from dust and moisture exposure.

• 2″ Air Inlet / 1-1/2″ Piping – Galvanized steel piping for corrosion resistance and full flow.

• Full Port Ball Valves – Heavy-duty construction with union ends for maintenance access.

• 15′ Blowdown Hose Assembly – Remote mounting for convenience and safety.

• 9″ Adjustable Spider – Supports proper sealing and flow with multiple abrasive media types.

• Skirted Pop-Up Gasket – Ensures tight sealing to prevent abrasive leakage or “burping.”

• Full Load Lifting Eyes – Simplifies vessel handling and transport for placement and servicing.

Technical Specifications

Performance Highlights

• Continuous blasting capability for maximum uptime.

• Precision media metering with long-wear tungsten carbide components.

• Minimal air loss and zero-pressure-drop operation.

• Heavy-duty design meets ASME Section VIII Division 1 and CRN certifications.

• Compatible with #7 and #8 blast nozzles for high-production use.

Important Notice

A 12VDC power supply is required for all 8.0 cu ft Dual-Chamber Blasters with pneumatic or electric controls.
Do not reverse polarity on the Dual-Chamber Control Box Power Supply—doing so may cause malfunction. Refer to the included wiring diagram when replacing or connecting the power source.

OEM Compatibility: