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This post was last edited by zhengxue on 2025-6-3 at 18:43. To help users avoid risks associated with product selection and ensure that pressure relief valves (relief devices) meet requirements in terms of safety, durability, and compliance, FINEKAY® has identified seven key considerations based on industry experience. These are outlined below: 1. Is the leak test conducted in accordance with regulations? Industry standards: Leak testing is a mandatory requirement under ISO 28300/API 2000, but most manufacturers only provide calibration certificates (without leak testing), which poses a risk of technical non-compliance. FINEKAY® advantages: Leak testing is provided as a standard service at no additional cost, ensuring that products meet international standards 100%. https://picx.zhimg.com/80/v2-35628c3f9494d665093d22bb77b61f1a_720w.jpeg?source=d16d100b FINEKAY PVTS Series Respiratory Valve Testing Device. 2. Can the core materials withstand harsh environments? Valve disc and seat: High-corrosion-resistant materials (such as SS316) should be used to prevent seal failure caused by excessive wear of aluminum components. Chemical compatibility: Comes standard with an FEP Teflon diaphragm, suitable for handling complex media such as strong acids and strong alkalis. https://picx.zhimg.com/80/v2-b260137cc6797f048c24d5e63942428d_720w.jpeg?source=d16d100b FINEKAY air cushion valve disc 3. Is the counterweight design safe and reliable? Material risks: Lead weight blocks may leak due to uneven weight distribution; in particular, the food and pharmaceutical industries must avoid any risk of lead contamination. Solution: Homogenized alloy counterweights are recommended to ensure stability and compliance. https://picx.zhimg.com/80/v2-796c03637f79e49d18537cd2a5bbd6cc_720w.png?source=d16d100b Corroded lead weights 4. Is the drainage design reasonable? Risk: If the outlet pipe cannot drain on its own, frozen condensate will block the pressure port, causing the device to fail. FINEKAY® Design: Comes standard with a rear-mounted drain port on the outlet flange, completely eliminating the problem of fluid accumulation. https://pic1.zhimg.com/80/v2-3774e116111faf57426969108f95c1aa_720w.jpeg?source=d16d100b Vent valve with upward exhaust pipe. 5. Does the manufacturing process mitigate the risk of corrosion? Welding defects: The welding process easily generates microcracks, accelerating corrosion (such as intergranular corrosion). Preferred solution: Utilizing a one-piece casting process results in a dense structure and extends the service life by over 30%. https://pic1.zhimg.com/80/v2-ecb67b52e57426c0ecabbc02c392e4a5_720w.png?source=d16d100b Welding and manufacturing of relief valves. 6. Is there a precise match between the flow rate and the dimensions? Key selection criteria: Parameters such as medium flow rate and pressure must be provided to prevent overpressure or frequent opening/closing of the breather valve due to insufficient sizing. Service support: FINEKAY® provides free selection calculations and installation guidance to ensure the efficient operation of the system. https://picx.zhimg.com/80/v2-4d69595a9d620396d3dea01e55889917_720w.jpeg?source=d16d100b FINEKAY Breathing Valve Diameter Calculation Software. 7. Is the gas group specified for the flame arrester suitable? Classification pitfalls: Media such as ethanol require flame arresters belonging to Group IIB1. Selecting arresters from other groups by mistake may lead to fire and explosion risks. Professional advice: Submit the process parameters so that FINEKAY® engineers can customize a gas group solution. https://picx.zhimg.com/80/v2-33b1ab7d1b985b0331e85abd6338f9c7_720w.jpeg?source=d16d100b The FINEKAY flame-arresting breather valve. Through these seven key aspects, FINEKAY® helps you achieve long-term, stable operation of the breather valve at the lowest possible cost!