Explosion proof cable clamping sealing joint armored non armored universal stainless steel material IP66 protection

Description :

  Explosion proof cable clamping sealing joint is a cable entry device designed specifically for explosive hazardous environments, which solves the sealing and fixing problems when cables enter explosion-proof electrical equipment. It uses a mechanical clamping structure to achieve axial fixation of cables, preventing internal wiring from loosening due to pulling. At the same time, it uses elastic sealing rings to achieve radial sealing, blocking dust, water vapor, and flammable and explosive gases from entering the interior of the equipment. This explosion-proof cable clamping and sealing joint is widely used in places with Class II explosive gas mixtures or combustible dust such as petroleum, chemical, coal mines, and pharmaceuticals, ensuring the safe and stable operation of electrical systems. It is an essential supporting component for explosion-proof distribution boxes, explosion-proof motors, explosion-proof lamps, and other equipment.

  The main body of the explosion-proof cable clamping and sealing joint is usually made of 304 or 316L stainless steel casting, which has excellent corrosion resistance and mechanical strength. The surface is polished or sandblasted to adapt to harsh industrial environments. The execution standards comply with the GB/T 3836 series and IEC 60079 international standards, and the protection level usually reaches IP66 or even IP68, which can effectively resist high-pressure water jet and long-term immersion. The common interface threads are NPT, G, M and other standards, which are suitable for different specifications of explosion-proof flexible connecting pipes or directly screwed into the equipment inlet. Sealing rings are often made of oil resistant and aging resistant silicone rubber or fluororubber materials, with a wide working temperature range. They usually maintain good elasticity between -40 ℃ and+100 ℃ to ensure long-term sealing and meet the physical performance requirements under harsh working conditions.

  When selecting explosion-proof cable clamping and sealing joints, it is necessary to focus on checking the outer diameter range of the cable to ensure that the cable is within the nominal clamping range of the joint. If it is too thin, it will cause poor sealing, and if it is too thick, it cannot be installed. It is necessary to distinguish between armored cables and non armored cables. Some models come with internal armor clips, which are specifically used to fix the steel strip or steel wire armor layer and achieve grounding continuity; If there is no armor, choose the regular type. Also pay attention to the consistency between thread specifications and equipment inlet ports, such as G1/2 ", M20x1.5, etc., and confirm whether the explosion-proof level matches the site area division (such as Zone 1/Zone 2). For highly corrosive environments, it is recommended to prioritize the use of 316L material or add anti-corrosion coatings to avoid pitting corrosion of ordinary stainless steel and ensure accurate selection to match actual installation needs.

  Before installing the explosion-proof cable clamping and sealing joint, the cable sheath should be checked for integrity, and the stripping length should strictly follow the product manual to avoid damaging the internal insulation layer. Insert the nut, washer, and seal into the cable in order, insert them into the joint body, and tighten the nut tightly until the sealing ring tightly grips the cable. It is advisable not to use excessive force to cause deformation or failure of the sealing ring. In daily maintenance, it is necessary to regularly check for looseness, cracks, or aging seals at the joints, especially near equipment with high vibration. If the sealing ring is found to be hardened or damaged, it should be replaced with a spare part of the same specification in a timely manner. It is strictly prohibited to use raw tape instead of special sealing components to maintain the complete protective performance of the explosion-proof cable clamping sealing joint and eliminate safety hazards.

AfterSalesService :