DJ41W low-temperature forged steel stainless steel flange globe valveCharacteristic
feature
1. Excellent low-temperature toughness design: The valve body is made of forged stainless steel material (such as 304, 316 austenitic stainless steel), which has a fine grain structure and uniform mechanical properties. It maintains good impact toughness at low temperatures, effectively preventing low-temperature brittle fracture and ensuring the structural safety of the valve in deep cold environments.
2. Reliable low-temperature sealing system: adopting an extended valve cover structure to isolate the low-temperature medium from the packing box area, avoiding valve stem frosting and blockage; The sealing surface of the valve disc and valve seat is usually welded with Stellite alloy or paired with hard materials. After precision grinding, it can still maintain a tight seal under low-temperature shrinkage conditions to prevent medium leakage.
3. Professional anti external cooling structure: The valve cover neck is lengthened to keep the packing box and operating mechanism away from the low-temperature flow channel, reduce cold conduction, prevent external frosting from affecting operation, and protect the stable performance of the sealing packing, extending its service life.
4. Adapt to cryogenic media and harsh working conditions: specially designed for low-temperature media such as liquefied natural gas (LNG), liquid oxygen, liquid nitrogen, liquid argon, ethylene, etc., with a wide temperature range (-46 ℃ to -196 ℃ or even lower), materials and structures meet low-temperature service requirements, and are suitable for key processes such as air separation, liquefaction storage and transportation, and low-temperature chemical engineering.
5. Smooth operation and flexible driving: The valve stem adopts a lifting design, which ensures smooth transmission and small opening and closing torque; Supports manual, electric or pneumatic drive modes, facilitating remote control and automated operation, meeting the precise cutting and adjustment needs under different working conditions.
6. Compact structure and easy maintenance: using flange connection, easy installation and centering, reliable sealing; The forged steel valve body has a compact structure, high strength, optimized internal flow channel design, and low pressure loss; The key components can be disassembled for maintenance, making it easy to inspect and replace in low-temperature systems, reducing operation and maintenance costs.