{"id":597514,"date":"2026-06-04T11:57:30","date_gmt":"2026-06-04T11:57:30","guid":{"rendered":"https:\/\/www.olympiajournal.com\/news\/story\/597514\/what-are-the-disadvantages-of-swing-check-valves.html"},"modified":"2026-06-04T11:57:30","modified_gmt":"2026-06-04T11:57:30","slug":"what-are-the-disadvantages-of-swing-check-valves","status":"publish","type":"post","link":"https:\/\/www.pennsylvania-magazine.com\/news\/story\/597514\/what-are-the-disadvantages-of-swing-check-valves.html","title":{"rendered":"What are the disadvantages of swing check valves?"},"content":{"rendered":"

In industrial fluid transmission, municipal water supply, HVAC and thermal pipeline systems, Check Valve<\/a>s are essential one-way flow components. They ensure unidirectional medium flow, prevent backflow, and protect pumps, instruments and pipeline equipment from reverse flow damage. Among various check valve types, swing check valves are widely adopted thanks to their mature structure and excellent flow performance. This article introduces their working principles and features, and compares them with ball check valves, diaphragm check valves and lift check valves, to provide professional references for valve selection.1. Structure and Core Features of Swing Check ValvesA swing check valve mainly consists of valve body, hinged disc, valve seat and pin shaft. It opens and closes automatically by medium pressure difference without extra driving devices. When medium flows forward, fluid pressure pushes the hinged disc to swing open for smooth flow. Once backflow occurs, the disc closes tightly against the seat by its own weight and reverse pressure to cut off backward flow.With straight internal flow passages, swing check valves feature low local resistance, small pressure drop and mild fluid turbulence, which hardly affect pipeline delivery efficiency. They are suitable for normal-temperature, medium and low-pressure working conditions, and widely used in municipal water pipelines, sewage treatment systems and general industrial circulation pipelines. They can handle water, wastewater, oil and other common neutral media.<\/p>\n

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2. Introduction of Other Mainstream Check Valves Wafer Check Valve A Wafer Check Valve<\/a> is a compact, slim-profile valve installed between two pipeline flanges, without the need for an independent valve body flange. It adopts a lightweight disc structure (usually swing or lift type) and relies on medium pressure difference for automatic opening and closing. It features small space occupation, light weight and easy installation, making it ideal for pipelines with limited installation space and frequent maintenance needs. It is widely used in municipal water supply, HVAC systems and light industrial pipelines, but is not suitable for high-pressure, high-temperature or large-diameter pipeline scenarios.<\/p>\n

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Lift Check ValveDesigned with vertically movable disc, lift check valves own high structural rigidity and outstanding pressure resistance, suitable for high-pressure and high-temperature working conditions such as boiler water supply and steam transmission pipelines. It supports both horizontal and vertical installation. Nevertheless, it has relatively large opening resistance and demands high cleanliness of conveyed media.<\/p>\n

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3. Comprehensive Performance Comparison<\/p>\n