Cryogenic Globe Valve

Category： Cryogenic Globe Valve
Product description：

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ACEV offers an extensive selection of high-performance cryogenic globe valves crafted from stainless steel and carbon steel, tailored for the processing, storage, transportation, and distribution of ethylene, LPG (Liquefied Petroleum Gas), LNG (Liquefied Natural Gas), and other low-temperature or cryogenic fluids, enduring temperatures as low as -196°C (-321°F).
Our cryogenic globe valves boast several notable features:
·A bonnet extension/column ensures that the packing rings remain shielded from cryogenic temperatures, maintaining optimal operating conditions.
·Both the valve body and obturator undergo thermal stabilization treatment, ensuring dimensional stability and preventing distortion throughout temperature fluctuations.
·A cavity relief pressure arrangement mitigates thermal impacts.
·Hardfacing on the seat and disc prevents seizing and galling, ensuring smooth operation.
Extended Bonnet: The bolted or integral vapor space extension is of sufficient length to keep the stem packing out of the cold zone, preventing ice formation and ensuring reliable performance.
Steel Forgings or Castings: These materials are resilient at cryogenic temperatures and can be classified as "cryogenic steel," exhibiting excellent impact strength and corrosion resistance.
Shell and Trim Parts: Crafted from austenitic stainless steel and sub-zero treated in LN2, these components offer unparalleled durability and performance.
Insulation Collar / Drip Plate: Upon request, a welded or clamped-on insulation collar/drip plate can be provided, ensuring effective thermal insulation and drainage.

Cryogenic Forged Globe valve
The fundamental design traits of ACEV's small forged steel globe valves are tailored to meet the unique challenges of cryogenic service conditions.
Additional Design Highlights:
·All valves feature extended bonnets with customer-specified gas column lengths, ensuring the stem packing remains sufficiently distant from the cold fluid to maintain functionality.
·NPS 1⁄2 to 2 (DN 15–50) valves incorporate solid wedges, designed to operate seamlessly without galling in cryogenic environments.
·Rigorous cleaning processes are employed, with all cryogenic valves thoroughly degreased, cleaned, and pipe ends sealed to safeguard against contamination.

Cryogenic Cast Globe Valve
The ACEV cast steel globe valves are meticulously designed to cater to the unique demands of cryogenic applications.
Key Design Adaptations:
·Extended Bonnets: Customized with ample gas column length, as specified by the customer, to ensure the stem packing maintains functionality by staying adequately distant from the cold fluid.
·Flexible Wedges: Featuring alloy seating faces, optimized for cryogenic service to ensure seamless operation.
·Rigorous Cleaning: All cryogenic valves undergo thorough degreasing and cleaning processes, with pipe ends sealed to safeguard against contamination.

Cryogenic Extend Bonnet Globe valve
The extended bonnet serves dual purposes in both low and high-temperature applications, primarily to safeguard the stuffing box and mitigate stem packing leakage.
Low-Temperature Applications:
Illustrative media include LNG, ethylene liquid, oxygen, liquid hydrogen, and liquefied natural gas. The handling of liquefied gases, such as oxygen, nitrogen, argon, natural gas, hydrogen, and helium (reaching temperatures as low as -320°F/-196°C), poses numerous technical challenges. ACEV's specially designed extended bonnet gate valves provide reliable and efficient solutions for these applications.
High-Temperature Applications:
Exemplary media encompass steam and sour service conditions.
ACEV offers forged or cast globe valves with extended bonnets, featuring exotic material options and swift delivery times to cater to diverse requirements.

Cryogenic Bellow Seal Globe valve
ACEV has introduced a cutting-edge series of bellows seal valves tailored for hydrogen transfer. These valves incorporate numerous innovative design elements, rendering them ideal for hydrogen transfer applications. They come in various sizes and configurations to cater to the diverse needs of different applications.
The valves boast a long cycle life of 3000 cycles, with Grade 321 stainless steel for Class 800, and either Grade 321 or Inconel for Class 1500, along with Hastelloy C for chlorine service. Custom material options are available upon request.
A non-rotating stem design prevents bellows torsion, ensuring durability. Furthermore, two secondary stem seals—stem backseat and stem packing—provide impeccable sealing in case of bellows damage. The seating surface is engineered for longevity, featuring Stellite 6 on both the seat and wedge/disc to prevent seizing and galling.
Each bellows assembly undergoes a rigorous helium leak test using a detector with a sensitivity of 10 cc/sec, ensuring impeccable sealing performance. The bellows are crafted from materials such as SS321, Inconel 625, Hastelloy, and Monel, among others, ensuring robustness and reliability.
Ranges:
Available in sizes ranging from 1/2" to 24" (DN15 to DN600), with pressure ratings from ASME CLASS 150 to 2500 (PN16 to PN420) and temperature capabilities spanning -196°C to 816°C (-320°F to 1500°F).

Construction Highlights:
Features bolted bonnet (BB) for ratings up to 900LB and pressure seal bonnet (PSB) for 1500LB and 2500LB. Constructed from forged steel or cast steel, it includes an outside screw and yoke (OS&Y) mechanism, rising stem, rising handwheel, integral backseat, and integral body seat. End connections are available in flanged (RF, FF, RTJ, etc.), butt-weld (BW), socket-weld (SW), and threaded options. Operation can be via handwheel, gear, or actuator (pneumatic, electric, hydraulic). The body is crafted from materials such as Monel, Inconel, Hastelloy, Incoloy, Duplex and Super Duplex, Carbon Steel and Low Temp Carbon Steel, Low Alloy Steel, Stainless Steel, and Titanium.

Applicable Standards:
Designed according to BS 1873, API 623, API 602, BS 5352, ISO 15761, ASME B16.34, and BS 6364. Flanged end dimensions adhere to ASME B16.5, butt-weld end dimensions to ASME B16.25, socket-weld end dimensions to ASME B16.11, and threaded end dimensions to ASME B1.20.1. Face-to-face dimensions conform to ASME B16.10, EN558, JIS B2002, and MSS SP72. Pressure-temperature ratings comply with ASME B16.34. Mounting pad (top flange) conforms to ISO 5211. Inspection and testing are performed according to API 598, EN12266, MSS SP82, and ISO 5208. Fugitive emission standards include ISO 15848, API 624, and API 641. Firesafe certifications include API 607, API 6FA, and ISO10497.

Optional Features:
Includes options for welded bonnet, extended bonnet, bellows seal, vacuum function, fugitive emission control, and compliance with NACE MR-0175 or MR-0103.

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Cryogenic Globe Valve

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