The throttle ring is available in single-piece and combined types, achieving a pressure reduction effect of 75% under 35MPa conditions, effectively mitigating the impact of high-pressure gas on the main sealing ring
Packing products are centered around "sealing+protection", forming a multi type and fully functional product matrix. The core component packing ring includes five key products: the main sealing ring serves as the core sealing unit, covering conventional types such as 32E and 33B, as well as upgraded types such as zero state sealing rings. The zero state sealing ring is designed with a multi ring combination, and a single group can achieve a sealing effect of 5-10 MPa, effectively controlling dynamic leakage and reducing frictional heat and load; The throttle ring is divided into single piece and combination types, with a pressure reducing effect of 75% under 35MPa conditions, which can significantly reduce the impact of high-pressure gas on the main sealing ring; Leakage sealing rings (such as 32F and 33E rings) serve as end protection to prevent external gas from entering and guide the recovery of leaked gas; The nitrogen filled sealing ring is combined with a wedge ring and a tangential ring to achieve bidirectional sealing; The packing wiper(models 33Q, 32R, etc.) focuses on oil and gas isolation to prevent lubricating oil from entering the cylinder or gas from contaminating the crankcase.
The packing assembly is integrated and optimized based on the packing ring, including functional modules such as water-cooled cup groove, oil injection cup groove, nitrogen filling flange, etc. It can be combined and configured according to the working conditions to form a series of products such as conventional, water-cooled, nitrogen filling, oil-free, etc. The pressure covers 0-500 kilograms and is suitable for different unit installation needs.
The product design follows the concept of "customized adaptation+standardized production", comprehensively considering key parameters such as piston rod diameter, gas composition, exhaust temperature and pressure, lubrication conditions, etc., while referring to the original equipment usage and customer expectations, and optimizing structural dimensions through precise calculation and verification. The sealing principle adopts a floating seal design, and the three petal packing ring is connected by a clamping spring. The gas pressure and spring force work together to make the ring body tightly adhere to the piston rod and cup groove surface, and the gap between the notches covers each other, closing the leakage path. At the same time, it can compensate for the radial runout of the piston rod and ensure the stability of the sealing.
The material selection combines high performance and specificity. The packing ring adopts a self-developed high-performance polymer formula and is processed by a professional European and American company. It covers a series of materials such as 9E, 9K, 9B, etc., and is suitable for different scenarios such as oil/oil-free, high temperature and high pressure, and extremely dry gas; The packing box is made of high-quality steel such as 42CrMo, 20Cr13, 17-4PH, etc., according to the pressure level. Compared with the commonly used ordinary cast iron and carbon steel in the industry, the mechanical strength and corrosion resistance are significantly improved.
Key technological upgrade highlights: The water-cooled cup slot adopts turbulent design, with no dead corners of water flow, and the cooling effect is improved by 40% compared to traditional methods, strictly complying with API 618 standards; The nitrogen filled structure simplifies components and makes assembly and maintenance more convenient; Zero state sealing technology breaks through the limitations of traditional design and does not rely on notch rings, greatly extending the life of the packing ring assembly.
The product has a wide range of adaptability and can meet the needs of various gas media such as air, natural gas, hydrogen, hydrocarbons, etc. It covers multiple industries such as chemical, energy, and machinery. Whether it is low-pressure vacuum working conditions, ultra-high pressure oily working conditions, or special scenarios such as extreme dryness and H2S containing media, it can provide precise adaptation solutions. The series design forms a complete product line, from JXC series 200kg conventional packing to 500kg ultra-high pressure water-cooled nitrogen filling packing, with a rod diameter covering 40mm and above specifications, which can be directly matched with mainstream compressor models at home and abroad.
To ensure long-term stable operation, the product is equipped with comprehensive fault solutions, providing installation specifications (such as step-by-step loading and start-up, pre lubrication requirements) and material adjustments (such as using Inconel for corrosion conditions) for common problems such as leakage, rapid wear, ring fracture, and creep ® The full process response strategy from series springs to structural optimization (such as adding throttle rings to the high-pressure end). At the same time, the product controls surface roughness and flatness through precision machining, ensuring installation fit and reducing operational losses. Combined with convenient spare parts replacement design, it achieves a dual improvement in cost-effectiveness and practicality.
