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Application Range: Zones 1, 2, and Class II A~II C hazardous gas environments, and/or Zones 20, 21, and 22 combustible dust areas.
2. Indoor/Outdoor (IP65, IP66)
3. Suitable for hazardous areas such as chemical, oil refining, oil extraction, offshore oil platforms, cruise ships, pharmaceuticals, etc., for connecting explosion-proof electrical equipment or for use in situations where pipe routing is difficult or where vibration is present.
4. This product features easy installation, quick setup, wide applicability, and high reliability.
Manufactured from high-quality carbon steel, with a zinc-plated or stainless steel finish.
US-made 1/2 NPT Explosion-Proof Plug, Stainless Steel Threaded Plug for Electrical Wire Sealing
US-Made 1/2 NPT Explosion-Proof Plug, Stainless Steel Screwed Cap Plug
These堵头 are typically made from special rubber materials, featuring high pressure resistance, strong elasticity, and ease of use. They are widely applicable at the connection points of various pipelines and equipment, including but not limited to valves and their connections in pressure piping systems, flange connections at pump inlets and outlets, and the connections between container equipment and pipeline flanges. Additionally, explosion-proof sealing堵头 are suitable for pipelines in vacuum or suction vacuum systems, as well as for the installation of various pipelines and equipment in potentially explosive areas in industries such as oil, petrochemical, and chemical industries.
Manufacturing Method of Heads: a) Small plug head: formed as a whole.
b) Large and medium-sized couplings: assembled before shaping — widely used; the standard's requirements primarily pertain to them.
c) Extra-large plug: Due to transportation and opening requirements, it is first formed into sections and then welded together.
Disc-shaped plug heads avoid splicing, which reduces thickness and increases stress.
Weld seams during assembly must only be radial or circumferential. This requirement for large-scale end caps may be abolished in the future. The distance of assembly should be specified, greater than 35mm and not less than 100mm (the heat-affected zone of welding is a high-stress area, and there is often funding available. Therefore, for the Guangdong branch, it is not uncommon to have three values related to this. For each connected experiment, the length of the stress shear h should be greater than 30mm, and not less than 100mm). There is a special characteristic in achieving this requirement for the refrigeration circuit components.
The nipple, plug, or throat plug is another name for the堵头, which is a type of mechanical fastener used for sealing purposes. It is used in mediums such as water, oil, and steam.
According to the thread type, it is divided into metric, British, and American.
According to different shapes: internal hex plug, external hex plug, cone thread plug, square plug.
Plastic plug, Cold Forging plug, 45# plug, Stainless Steel plug, Copper plug
Anodizing, galvanized, nickel plated, chrome plated
304 Explosion-proof Plug, Solid Plug, G3/4 Explosion-proof Junction Box Plug
304 Explosion-proof Plug, Solid Plug, G3/4 Explosion-proof Junction Box Plug
The function of explosion-proof sealing plug is not only to seal but also to prevent equipment from being damaged due to external impacts or pressure. It must bear an explosion-proof mark and be manufactured by a legitimate factory to ensure its quality and safety. When selecting an explosion-proof sealing plug, factors such as material, structure, process, and thread type should be considered to ensure it is suitable for specific equipment and pipeline systems, and provides reliable sealing and explosion-proof performance.
