verified Serving Western Canada Since 1983

B800 Overflow Valves

The B800 Series overflow valve features proportional control characteristics for precise pressure management, providing pumps or plant systems with protection during times of excessive pressure. ZIRCO is proud to be the authorized 3B Controls representative for Western Canada.

B800 Overflow Valves Overview

The B800 Series overflow valve features proportional control characteristics for pressure control and maintenance, providing pumps or plant systems with protection during times of excessive pressure. As the official 3B Controls representative for Western Canada, ZIRCO provides these essential pressure relief solutions to oil and gas operations throughout Alberta and beyond.

Designed with a lightweight weight-loaded open vent configuration, the B800 offers reliable performance with minimal maintenance requirements. The proportional control characteristics ensure precise pressure management, protecting your valuable pumping equipment and plant systems from damage caused by excessive pressure.

Key Benefits for Western Canada Operations:

  • Proportional control for precise pressure management
  • Lightweight design for easy installation and handling
  • Self-draining design prevents condensate accumulation
  • Wide size range from 2" to 12"
  • Factory tested and fully certified
  • Available in carbon steel or stainless steel

Technical Specifications

Open Vent Weight Loaded Specifications

Specification Value
Pressure Settings +4 mbarg to 100 mbarg (standard)
Size Range 2″ (50 mm) – 12″ (300 mm)
Design Type Weight-loaded, open vent
Control Characteristics Proportional control

Construction Materials

Component Standard Options
Body Materials Carbon Steel, Stainless Steel
Trim Material Stainless Steel
Diaphragm Material PTFE
Flanges Standard drilled - ANSI / DIN / JIS / Specials available

Available Options

Option Description
Lightweight Design Easy handling and installation
Alternative Materials Available for hazardous and corrosive applications
Special Connections Other connections available upon request

Non-Standard Applications

For specialized applications beyond standard specifications, 3B Controls offers numerous custom options through consultation with their engineering team. These include:

  • Exotic Materials: Hastelloy and various plastics suitable for hazardous environments
  • Special Coatings: Applied for extreme service conditions
  • Low Temperature Applications: Internal parts can be PTFE coated to prevent seizure in cold environments

* All products are subject to continuous development and 3B Controls reserves the right to change specifications without notification.

Product Features & Benefits

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Low Cost Maintenance

Lightweight design provides easy handling whilst interchangeable components ensure standard parts are easily replaced. Minimizes downtime and maintenance costs for Western Canada operations.

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Testing & Quality Assurance

All products are factory tested and fully certified to meet stringent industry standards. Ensures reliable performance when protecting your pump and plant systems.

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Self Draining Design

All products are designed so that any condensate drains away from seating areas, preventing freeze damage and ensuring reliable operation in all weather conditions common in Western Canada.

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Low Leakage Rate

Standard seating design ensures minimum leakage of less than 10 scfh at 90% of set pressure. Protects product quality and reduces emissions for environmental compliance.

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Premium Internal Parts

Internal parts are stainless steel as standard. Non-standard materials available upon request for corrosive or hazardous applications common in oil and gas operations.

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Flexible Connections

All valves are supplied with full form flanges to meet individual requirements. ANSI, DIN, JIS, and special configurations available for global compatibility and site-specific needs.

Product Literature & Resources

Technical Documents

B800 Overflow Valves

Complete technical specifications and product information

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Contact for More Information

ZIRCO is the authorized Western Canada representative for 3B Controls tank venting and safety products. Contact our team for:

  • Technical specifications and sizing assistance
  • Application engineering support
  • Quotations and delivery information
  • After-sales service and spare parts
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Protect Your Pumps with B800 Overflow Valves

Contact our team today to discuss how B800 Overflow Valves can provide proportional pressure control and protection for your pump and plant systems. ZIRCO provides expert support and authorized 3B Controls products for Western Canada oil and gas operations.