Specification

Stainless Steel High-Pressure Cryogenic Globe Valve with Flange Connection for LNG, LOX, Petrochemical Applications

I. Product Overview

TIANYU stainless steel cryogenic globe valve is a high-performance industrial valve designed for harsh operating environments, particularly suited for handling low-temperature, ultra-low-temperature, and high-pressure media. Engineered with precision, this valve integrates advanced materials, robust structural design, and versatile operation modes to meet the stringent requirements of industries such as oil and gas, LNG terminals, petrochemical plants, and general industrial applications. Its core design focuses on reliable flow control, excellent sealing performance, and long-term durability, making it a critical component in systems where media stability and operational safety are paramount.

II. Key Attributes and Specification Parameters

1. Basic Attributes

Material: The valve body, bonnet, and other pressure-bearing components are constructed from high-quality stainless steel, with 300 series austenitic stainless steel used for ultra-low-temperature applications (-101℃ to -196℃) due to its moderate strength, excellent toughness, and superior processability. For low-temperature grades (-46℃), low-temperature carbon steel is employed, ensuring optimal performance under specific temperature conditions.
Pressure Rating: Available in multiple pressure classes to accommodate diverse industrial needs, including 150lb, 300lb, 600lb, 900lb, and up to 1500lb, enabling safe operation in high-pressure systems such as LNG terminals and petrochemical pipelines.
Port Size: Covers a wide range of nominal diameters (DN) from DN20 to DN150, with extended options up to DN500 to meet various pipeline size requirements.
Temperature Range: Designed to handle media temperatures across low, medium, and normal ranges, with ultra-low-temperature capability down to -196℃, suitable for cryogenic media like liquid nitrogen, LNG (liquefied natural gas), and LOX (liquid oxygen).
Media Compatibility: Versatile for use with multiple media types, including oil, water, steam, gas, and acid, ensuring adaptability across different industrial processes.
Operation Modes: Supports multiple power sources for flexible operation, including electric, manual, hydraulic, and pneumatic, allowing users to select the most appropriate mode based on system design and operational needs.
Connection Type: Available with flanged or welded connections, ensuring secure and leak-free integration into pipeline systems. Flange drilling conforms to PN10/16 standards for compatibility with industry-wide pipeline specifications.
Structure: Features a through-way design, optimizing flow dynamics and minimizing pressure drop during operation.
Warranty: Backed by a 2-year warranty, guaranteeing reliable performance and providing peace of mind for long-term industrial use.

2. Dimensional Parameters (PN10/16)

Specific dimensional data for key DN sizes are as follows, ensuring precise installation and compatibility with pipeline systems:

DN (mm)	Flange Drilling	L (mm)	H (mm)	H3 (mm)	F (mm)	F1 (mm)	F2 (mm)
40	PN10/16	240	200	263	14	16	30
50	PN10/16	250	209	292	14	16	30
65	PN10/16	270	243	336	17	20	34
80	PN10/16	280	282	382	17	20	34
100	PN10/16	300	319	429	19	22	34
125	PN10/16	325	346	471	19	22	34
150	PN10/16	350	403	493	19	22	34
200	PN10/16	400	490	660	24	28	34
250	PN10/16	450	664	864	27	31	47
300	PN10/16	500	740	968	27	31	47
350	PN10/16	550	947	1207	32	37	55
400	PN10/16	600	959	1249	32	37	55
450	PN10/16	650	958	1278	32	37	55
500	PN10/16	700	958	1316	32	37	55

Product Overview

III. Product Features

TIANYU stainless steel cryogenic globe valve is distinguished by a range of features that enhance its performance, reliability, and adaptability:

Exceptional Cryogenic Performance: Specifically engineered to handle ultra-low-temperature media down to -196℃, making it ideal for LNG, LOX, and liquid nitrogen transportation systems. The material selection ensures that valve components maintain toughness and structural integrity even in extreme cold, preventing brittleness and leaks.
Superior Shutoff and Throttling Capability: The valve’s design provides excellent shutoff capability, ensuring tight sealing to prevent media leakage—a critical feature in high-pressure and cryogenic systems. Additionally, it offers moderate to good throttling performance, allowing precise control over flow rates, which is essential for processes requiring accurate media regulation.
Compact and Efficient Design: Compared to gate valves, it features a shorter stroke, enabling quicker operation and reducing response time in systems where rapid flow adjustment is needed. This compact design also simplifies installation in space-constrained environments.
Durable Sealing System: The sealing faces are designed with minimal friction, extending the valve’s service life and reducing maintenance needs. The use of high-quality packing and gaskets (such as bonnet gaskets) further enhances sealing performance, even under fluctuating pressure and temperature conditions.
Versatile Operation: With support for electric, manual, hydraulic, and pneumatic operation, the valve can be integrated into automated or manual systems, providing flexibility for various industrial setups. This versatility ensures compatibility with both traditional and modern process control systems.
One-Way Flow Design: Structured for one-way fluid flow, which helps prevent backflow in critical systems, enhancing operational safety and system stability. This feature also allows it to function as a stop-check valve in specific applications, adding to its multi-purpose utility.
Ease of Maintenance: The valve’s seat rings are easy to machine or resurface, simplifying maintenance and repair processes. This design reduces downtime and operational costs, making it a cost-effective choice for long-term use.

IV. Manufacturing Process

TIANYU adheres to strict manufacturing standards and advanced processes to ensure the quality and performance of its cryogenic globe valves:

Material Selection and Traceability: The selection of materials for pressure-bearing components (body, bonnet, etc.) is based on rigorous criteria, including low-temperature strength, toughness, weldability, machinability, and cost-effectiveness. Raw materials are subject to strict identification and traceability protocols, ensuring that each batch meets specified standards and can be tracked throughout the production cycle.
Precision Machining: Advanced equipment, such as HMC1000 machining centers, is used for precision manufacturing of components like the stem, disc, and seat rings. This ensures tight tolerances and consistent dimensions, critical for proper valve operation and sealing.
Low-Temperature Grade Optimization: The manufacturing process accounts for three key low-temperature grades (-46℃, -101℃, -196℃), with material treatments and processing techniques tailored to each grade. For example, 300 series austenitic stainless steel undergoes specific heat treatments to enhance its low-temperature toughness.
Quality Control at Every Stage: From raw material inspection to finished product testing, TIANYU implements a rigorous quality control system. This includes drawing-based manufacturing checks, sample testing, and finished product inspections to verify pressure resistance, sealing performance, and low-temperature operability.
Assembly and Testing: Valves are assembled by experienced technicians, with each component checked for fit and function. Post-assembly, valves undergo pressure testing, leak testing, and low-temperature performance testing to ensure they meet industry standards (such as ASME, CE, ISO) and customer requirements.

Valve Details

V. Product Advantages

TIANYU stainless steel cryogenic globe valve offers numerous advantages that set it apart in industrial applications:

Reliability in Extreme Conditions: Its ability to operate at pressures up to 1500lb and temperatures as low as -196℃ ensures reliability in the most demanding environments, such as LNG terminals and petrochemical plants where system failure could have severe consequences.
Long Service Life: The use of high-quality stainless steel, minimal friction sealing faces, and robust construction contributes to a long service life, reducing the need for frequent replacements and lowering lifecycle costs.
Broad Application Range: Compatible with multiple media (oil, water, steam, gas, acid) and suitable for various industries, the valve eliminates the need for specialized valves for different processes, simplifying inventory management and system design.
Compliance with International Standards: The valve meets globally recognized certifications (ASME, CE, ISO), ensuring compatibility with international industrial systems and facilitating export to markets worldwide.
Strong After-Sales Support: Backed by a dedicated technical team, TIANYU provides comprehensive after-sales service, including installation guidance and troubleshooting, ensuring smooth operation and quick resolution of any issues.

Application

VI. Product Applications

TIANYU stainless steel cryogenic globe valve is widely used across industries that require precise flow control of high-pressure or low-temperature media:

LNG Terminals: Critical for controlling the flow of liquefied natural gas, which is stored and transported at extremely low temperatures (-162℃), requiring valves with reliable low-temperature performance.
Petrochemical Plants: Used in processes involving high-pressure fluids, corrosive media (acids), and steam, where the valve’s pressure rating and media compatibility ensure safe and efficient operation.
Oil Industry: Suitable for upstream and downstream oil operations, including crude oil transportation, refining processes, and storage facilities, where high-pressure resistance and durability are essential.
Industrial Systems: Applied in general industrial settings for water, steam, and gas flow control, supporting heating, power generation, and manufacturing processes.
Cryogenic Storage and Transportation: Ideal for systems handling liquid nitrogen, LOX, and other ultra-cold media, ensuring secure and controlled flow to prevent evaporation or leakage.