In-line female threaded flame arrestor stainless steel

Detailed Product Introduction

The series in-line female threaded stainless steel flame arrestor is a passive safety device meticulously designed to protect industrial piping, storage tanks, and gas manifolds from deflagration and flashback transitions. Fabricated from premium cylindrical bar-stock stainless steel, it features high-precision female threaded end connections for simple, leak-tight integration directly into process pipelines or vent stacks. The core protection mechanism relies on an internal, heavy-duty stainless steel wire mesh/sintered disc matrix. When an ignition occurs, this micro-porous flame element layer absorbs and dissipates the thermal energy of the moving flame front, reducing the gas temperature below its auto-ignition threshold and instantly extinguishing the fire. It serves as an essential safety safeguard for hydrogen, acetylene, biogas, liquefied petroleum gas, and volatile natural gas放空 (venting) installations.

Technical Specifications

• Product Classification: In-line Explosion Proof Flame Arrestor / Deflagration Arrestor

• Flow Orientation: Bi-directional flame protection design

• Body Housing Material: Forged/Bar-stock Stainless Steel 316 (SS316) / SS316L / SS304

• Arresting Element Matrix: Layered Stainless Steel 316L Wire Mesh / Sintered Corrugated Ribbon Disc

• Connection Thread Ends: Female NPT / BSPT / G Thread conforming to ASME B1.20.1

• Available Connection Sizes: 1/4", 3/8", 1/2", 3/4", 1" up to 2" (DN8 to DN50)

• Maximum Pressure Capacity: Suitable for low to medium pressure piping operations up to 10 Bar (Higher custom designs available)

• Gas Explosion Group: Approved for NEC Group B, C, D (Hydrogen, Acetylene, Ethylene, Propane, Methane)

• Flame Arresting Principle: Micro-clearance thermal quenching and boundary layer cooling

• Element Serviceability: Removable/Cleanable internal core design for easy routine maintenance

• Maximum Operating Temperature: Continuous exposure capabilities from -30°C to +180°C

• Flow Efficiency Profile: Highly optimized internal geometry ensuring low pressure drop (Low ΔP)

• Sealing Interface: High-tensile precision metal-to-metal body threading with optional fluoropolymer dynamic seals

• Corrosion Resistance: Excellent endurance against sour gas, marine environments, and volatile organic vapors

• Shell Hydrostatic Test: Factory hydro-tested to 1.5 times the maximum rated engineering limit

• Helium Leak Integrity: Rated tight to ≤ 1 x 10⁻⁷ atm cc/sec to eliminate structural product bypass

• Exterior Finish: Fine satin polished aesthetic with high resistance to industrial grime and pollutants

• Traceability Markings: Laser-engraved specification data, material heats, and production batch records on the body sleeve

• Design Guidelines: Developed and validated in strict reference to EN ISO 16852, ISO 5175, and API 2000 standards

• Packaging Protection: Cleaned to instrumentation gas standards, capped with vinyl thread protectors, and individually boxed