About cryogenic globe valve DJ 10P 1 2 7 8
Nominal Pressure:4.0Mpa
Design Temperature: -196
Suitable Media: LNG, LO2, LN2, LAr, CO2
Materials of Main Parts:
Body: HPb59-1
Stem: HPb59-1
Handwheel: ZL102
Disc Seals: PCTFE
Robust Cryogenic Design for Extreme ConditionsThe DJ 10P 1 2 7 8 is engineered to handle temperatures as low as -196C, making it suitable for demanding cryogenic applications. The extended bonnet ensures effective thermal insulation, preventing stem icing and maintaining reliability in tough environments such as liquefied gas storage and transportation.
Versatile End Connections and Material ChoicesThis valve is offered with multiple end connection options, including socket weld, butt weld, and flanged ends for flexible installation. Made from high-quality CF8M, SS304, or SS316 stainless steel, it resists corrosion and strengthens performance in harsh conditions, ensuring a long operational lifespan.
High Standards in Safety and PerformanceCertified to BS6364 and MSS SP-134 design standards, with API 598 test compliance, the DJ 10P 1 2 7 8 guarantees optimal safety and minimal leakage. The manual handwheel operation, coupled with PTFE/PCTFE seats and ANSI Class VI leakage rating, delivers secure, bidirectional flow control for sensitive cryogenic applications.
FAQ's of cryogenic globe valve DJ 10P 1 2 7 8:
Q: How does the extended bonnet benefit cryogenic applications?
A: The extended bonnet on the DJ 10P 1 2 7 8 offers insulation between the valve's internal components and external environment, preventing stem icing in extremely cold temperatures. This feature increases safety, reliability, and lifespan in low-temperature service.
Q: What materials are used in the construction of this cryogenic globe valve?
A: This model is constructed from robust CF8M, SS304, or SS316 stainless steel, providing excellent resistance to corrosion and low temperatures. The seat is made from PTFE or PCTFE for effective sealing and durability in cryogenic service.
Q: When should I use a Class 150-900 cryogenic globe valve in my system?
A: Use this valve when managing liquefied gases, cryogenic tanks, or pipelines that require precise flow control and minimal leakage at pressures up to 900 class and temperatures down to -196C. It's suitable where stringent international standards must be met.
Q: Where is the DJ 10P 1 2 7 8 cryogenic globe valve commonly installed?
A: These valves are typically installed in systems handling liquefied gases, cryogenic tanks, distribution pipelines, and other low-temperature service environments in industries such as petrochemical, industrial gas, and medical gas supply.
Q: What is the typical process for operating and maintaining this valve?
A: Operation is manual, using a handwheel to control flow bidirectionally. Maintenance involves periodic inspection for seat wear, stem lubrication, and checking packing integrity, especially after prolonged cryogenic exposure, to maintain ANSI Class VI leak tightness.
Q: How does the non-rising stem design improve performance?
A: The non-rising stem minimizes valve height during operation, offering more compact installation where space is limited. It also prevents the stem threads from exposure to the cryogenic media, thus reducing the risk of frost formation and operational issues.
Q: What advantages does the DJ 10P 1 2 7 8 offer over standard globe valves?
A: This model is optimized for extreme cold, with enhanced insulation, advanced seat materials, and a bidirectional flow design. Its compliance with international standards, high leakage class, and robust construction ensure higher reliability and safety in cryogenic applications.