Biogas produced from the decomposition of organic matter consists primarily of methane, CO₂, and various contaminants. Upgrading this biogas yields biomethane, commonly referred to in the industry as renewable natural gas or RNG. Pipeline injection relies directly on meeting strict gas quality specifications and utility interconnection requirements.
BIOGAS, BIOMETHANE & RNG
Valves for Biogas, Biomethane, and RNG
Industrial valves, safety valves, actuators, and sealing solutions for your biomethanation and water treatment facilities. VAMECA supports plant operators and system integrators across Quebec and Canada, from technical selection through to replacement.
OPERATORS · INTEGRATORS · MAINTENANCE
BIOGAS · BIOMETHANE · RENEWABLE NATURAL GAS
Each stage requires its own precise selection.
YOUR FACILITY'S PIPING AND PROCESS SYSTEMS
From raw biogas to biomethane.
Gas composition, pressure, and the presence of condensate vary throughout the facility. In addition to gas streams, liquids and utilities constitute separate circuits requiring dedicated, engineered treatment.
01 / RAW BIOGAS
Select raw biogas isolation.
On gathering lines and upstream of treatment facilities, the gas can be wet and contain H₂S. Its composition, condensate levels, and operating temperature are critical for validating the selection of materials, seats, and seals. For line isolation applications, please also specify operating pressures, cycling frequency, and the required fail-safe position upon loss of power.
02 / BIOGAS UPGRADING AND BIOMETHANE
Size control and protection systems.
In a membrane biogas upgrading unit, the gas composition and molar mass directly impact control valve sizing. Please provide the minimum and maximum flow rates, operating temperature, and upstream and downstream pressures. Compression circuit protection is addressed separately, based on your specific overpressure scenario and required discharge capacity.
03 / DIGESTATE & UTILITIES
Retrofitting equipment for digestate and heating service.
For digestate applications, please specify solids content, particle size, and fiber presence to ensure the proper selection of valves and pump mechanical seals. For digester heating loops, identify the heat transfer fluid, operating temperature, and pressure. For pneumatic actuators, indicate available plant air pressure and the required fail-safe position.
VAMECA SOLUTIONS
Regulate, isolate, and protect your process.
ARI provides technical documentation for the STEVI Vario, SAFE, and ZEDOX product lines engineered for biogas processing. VAMECA assesses the precise configuration, connection types, and compliance documentation required for your facility.
GAS PRESSURE REGULATION
ARI STEVI Vario
Designed to regulate flow rates and pressures in biogas upgrading and purification systems, particularly membrane-based units. Precise Kv/Cv sizing accounts for full gas composition as well as minimum and maximum operating points.
Please specify: media composition, operating temperature, min/max flow rates, and the corresponding upstream and downstream pressures.
OVERPRESSURE PROTECTION
ARI-SAFE Safety Valves
A critical product family to consider for protecting compression and processing systems. Proper selection relies on your specific relief scenario, gas composition, required flow capacity, and backpressure conditions.
Please specify: set pressure, required capacity, back pressure, and connection types.
CIRCUIT ISOLATION
ARI ZEDOX High-Performance Butterfly Valves
Metal-seated double eccentric butterfly valves, engineered by ARI for biogas applications. Materials, sealing performance, and actuation are precisely validated to match your specific gas composition and service conditions.
Please specify: diameter, differential pressure, required shut-off class/leakage rate, and actuation type.
FLANGE AND JOINT SEALING SOLUTIONS
Flat and Spiral-Wound Gaskets
Custom die-cut gaskets and LATTY sealing solutions for your plant assemblies. Materials are carefully selected based on the specific gas or liquid, condensate presence, operating temperature, and bolting conditions.
Please specify: material composition, flanges, facing/contact surfaces, thickness, and dimensions.
Complete Isolation and Automation Solutions
A ball valve can address other isolation requirements. The valve, actuator, solenoid valve, and limit switches are selected as an integrated assembly, tailored to your cycle requirements, fail-safe position, and project area classification.
DATA-DRIVEN SPECIFICATION
Real gas makes the difference.
Simply specifying "biogas" is not enough to select the right equipment. These three data sets ensure a more accurate technical consultation and prevent replacements based solely on line size.
01
Composition and Condensate
Raw or upgraded biogas, methane, CO₂, H₂S, moisture, and entrained liquids. Use the process data specific to the valve installation point.
02
Pressure, Flow Rate, and Function
Specify the service requirement: isolation, control, or overpressure protection. For control applications, provide the minimum and maximum flow rates along with the corresponding operating temperatures and upstream/downstream pressures, including all engineering units and the pressure reference standard.
03
Installation and Site Requirements
End connections, overall dimensions, ambient temperature, actuation, and hazardous area classification. Identify the required certifications and documentation for the specified equipment.
FREQUENTLY ASKED QUESTIONS
Key technical considerations to determine before selection.
PREPARE YOUR REQUEST
Looking to outfit a unit or replace a component?
A part number, P&ID, or photos are all it takes to get started. Our technical team will work directly with you to identify any missing specifications and determine the precise configuration required for manufacturer consultation.
Dedicated technical support across Quebec and Canada.
The affected system
Raw biogas, upgrading, biomethane, digestate, or plant utilities.
Media and Service Conditions
Media composition, condensate, temperatures, pressures, and flow rates.
Equipment and Documentation
Tag number, part number, end connections, actuation, and project specifications.
Your Deadline
Quantity, delivery site, shutdown date, or commissioning schedule.