How to Specify the GAC-M20 - Sizing, Zoning and Installation Guide for High-Risk LNG Spaces
Price:
Negotiable
MOQ:
10 sets
Delivery Time:
5-8 work days
Brand:
CSSC
Product Description
GAC-M20 Sizing, Zoning and Installation Guide for High-Risk LNG Spaces
Product At A Glance
The GAC-M20 and GAC-M10 solve different monitoring challenges. Select the GAC-M20 for high-risk areas requiring uninterrupted point monitoring. This 8-channel system supports continuous active sampling with individual sensors per point, sampling lines under 100 m, front-end filters and shut-off ball valves, flame arrestors at both inlet and outlet, and a built-in gas detection alarm.
Selection Guide
- Use GAC-M20 for high-risk zones; GAC-M10 circulating cabinet for low-risk dispersed points
- Plan for 8 sampling channels per cabinet with each pipeline under 100 m
- Ensure oil-free dry instrument gas supply at 0.3 - 0.6 MPa for purge function
- Compatible detectors: GT-C100, GQ-C100G and GQ-C100B for O₂, CH₄, H₂ and other gases
Installation Requirements
Position cabinet outside hazardous areas when possible, in ventilated spaces with full service access. Account for footprint: 1800 × 800 × 500 mm and weight up to 100 kg.
- Route eight sampling lines via shortest practical paths, none exceeding 100 m
- Provide oil-free dry instrument gas at 0.3 - 0.6 MPa for purge function
- Connect nine 3-wire 4-20 mA output channels to gas alarm control cabinet
- Operating environment: -10°C to 55°C at 15-95% RH non-condensing
- Specify detector type at order (GT-C100 for methane, GQ-C100G/GQ-C100B for other gases)
- Document channel-to-tank assignments on as-built drawings for troubleshooting
System Integration
The cabinet outputs nine 3-wire 4-20 mA channels directly to the central gas alarm control cabinet. Compatible with GT-C100, GQ-C100G and GQ-C100B detectors for oxygen, methane, hydrogen, and additional gases upon request.
Key Capabilities
- Independent sensor per monitoring point
- Pump-suction sampling technology
- 8-channel continuous active sampling
- Front-end filters and shut-off ball valves
- Flame arrestors at inlet and outlet
- Built-in leakage gas detection alarm
- External gas-source replacement capability
- Direct data feed to central control cabinet
Suitable Applications
LNG cargo tanks, LNG fuel tanks, and other high-risk confined spaces onboard vessels requiring continuous gas monitoring.
Certifications & Approvals
- CCS Type Approval Certificate (China Classification Society)
- BV Type Approval Certificate (Bureau Veritas, Certificate No. 81499/A0 BV)
- LR Type Approval Certificate (Lloyd's Register)
- SIL3 Functional Safety Certification
- Explosion-Proof Conformity Certificate
- CCS Cyber Security Certificate
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Beijing Airppb Environmental Protection Equipment Co., Ltd.
Location
No. 11 Kechuang 14th Street, Beijing Economic and Technological Development Zone, Beijing, China
Contact Person
Liu