Specification
TIANYU ANSI/BS/DIN/JIS/API Manual Flanged Globe Valve (150LB~600LB, WCB)
I. Product Overview
API Globe Valve Technical Standard | ||||||||
Design and Manufacturer | Face to face end | Flange Dimension | Pressure Temperature Rating | Inspection and Test | ||||
ANSI B16.34, BS1873 | ANSI B16.10 | ANSI B16.5 | ANSI B16.34 | API 598 | ||||
API Globe Valve Pressure | ||||||||
Pressure | unit | 150 | 300 | 600 | 900 | |||
Shell Test | Mpa | 3 | 7.7 | 15.3 | 23 | |||
Water Seal Test | Mpa | 2.2 | 5.7 | 11.2 | 17 | |||
Air Seal Test | Mpa | 0.6 | ||||||
API Globe Valve Material | ||||||||
Body | Stem | Gasket | Seal face | Working temperature | Medium | |||
WCB | 2Cr13 | PTFE, RPTFE, graphite | 13Cr, 304, 316, stellite | 425 C | water | |||
CF8 | 304 | 400C | nitric acid | |||||
CF8M | 316 | acetic acid |
Product Name: Globe valve .ANSI flanged globe valve 150LB 300LB 600LB
Material: stainless steel CF8 CF8M CF3 CF3M F304 F316etc
End Connection: RF ,FF ,RTJ flanged end ,NPT ,BSP,SW/ BW welded end
Standard: DIN GB ISO JIS BA ANSI
Pressure Grade: DIN GB ISO JIS BA ANSI
Brade: TIANYU
Working temperature: Working temperature-29~425℃ WCB -40~500℃ SS
Used Medium: Water,Oil,Gas,Niric Acid ,etc
II. Key Attribute Parameters
Size & Pressure
- Port Size: 1/2″~24″ (DN15~DN600), covering small to large-diameter pipelines. From 1/2″ instrument lines to 24″ main process pipelines, it adapts to diverse flow control needs, ensuring compatibility with standard industrial layouts.
- Pressure Rating: 150LB~600LB (2.0MPa~10.0MPa). 150LB suits low-pressure systems (e.g., municipal water); 300LB/600LB handle medium to high pressure (e.g., oil transmission, steam pipelines).
Material & Sealing
- Body & Bonnet: WCB cast carbon steel (ASTM A216), offering high strength (tensile strength ≥485MPa) and temperature resistance up to 425℃. It withstands water, oil, gas, and mild industrial fluids without corrosion in non-aggressive environments.
- Seal Components:
- Valve Seat/Disc: Metal-to-metal (13Cr stainless steel or stellite coated) for high pressure/temperature; optional PTFE soft seals for corrosive media. Stellite’s hardness (HRC55~60) resists wear from frequent operation.
- Flange Gaskets: Graphite (for high temperature) or PTFE (for chemicals), ensuring leak-tight flange connections per standard specifications.
- Stem: 2Cr13 alloy steel, corrosion-resistant and torque-resistant, preventing seizing during manual operation.
Connection & Operation
- Connection Type: Flanged (RF/FF/RTJ), compatible with ANSI B16.5 (US), BS 10 (UK), DIN 2501 (EU), and JIS B2220 (Japan) standards. This flexibility allows integration into global pipeline systems without adaptation.
- Actuation: Manual (handwheel), with precision threading for fine flow adjustment. The handwheel’s ergonomic design reduces operator fatigue during frequent throttling (e.g., regulating boiler water level).
Standards Compliance
- Design & Manufacturing: API 602 (small sizes), API 600 (large sizes), ANSI B16.34 (pressure-temperature ratings).
- Testing: API 598 (hydrostatic shell test at 1.5×rated pressure; seat test at 1.1×rated pressure) to verify strength and sealing.
Product Overview
III. Features Description
- Precise Throttling Control: The globe valve’s linear stem movement (disc lifts/lowers perpendicular to flow) creates a variable flow area, enabling fine flow rate adjustment. This makes it superior to ball valves for applications requiring stable regulation (e.g., controlling fuel supply to industrial burners).
- Global Standard Compatibility: Flange dimensions, face-to-face lengths, and pressure ratings align with ANSI, BS, DIN, JIS, and API standards. This eliminates installation barriers in cross-border projects, from North American refineries to European chemical plants.
- Metal Hard Sealing Reliability: Metal-to-metal seals maintain tight shut-off under 600LB pressure and 425℃ temperature, outperforming soft seals in high-pressure steam or hot oil systems. They avoid degradation from heat or pressure surges, ensuring long-term sealing integrity.
- Cost-Effective Durability: WCB material balances performance and cost, avoiding the premium of stainless steel for non-corrosive media. Cast construction eliminates internal defects, while precision-machined components reduce maintenance needs, lowering lifecycle costs.
- Straightforward Maintenance: Flanged connections allow easy disassembly for seal replacement or stem lubrication. Standardized parts (e.g., gaskets, stems) simplify spare part procurement globally.
IV. Manufacturing Processes
- Casting: WCB steel is melted and poured into precision molds. Automated casting ensures uniform density; post-casting annealing relieves internal stresses to prevent warping.
- Machining: Valve body, disc, and stem are CNC-machined to tight tolerances (±0.02mm). Seal faces are ground to Ra ≤1.6μm, ensuring uniform contact between seat and disc for tight sealing.
- Seal Assembly: Metal seats are press-fitted or welded into the body; stellite coating is applied via plasma welding, then lapped for flatness. Flange gasket grooves are machined to match standard dimensions (e.g., ANSI B16.5 RTJ grooves).
- Testing:
- Hydrostatic Shell Test: 150LB valves tested at 3.0MPa, 600LB at 15.0MPa for 30 minutes to check for body leaks.
- Seat Leakage Test: 1.1×rated pressure (e.g., 2.2MPa for 150LB) with water, ensuring leakage ≤0.1×DN (mm)/min (API 598 standards).
- Operation Test: 100+ open/close cycles verify smooth handwheel operation and consistent sealing.
Valve Details
V. Product Advantages
- Versatile Application: Compatible with water, oil, gas, and mild fluids, eliminating the need for multiple valve types in mixed-media facilities (e.g., industrial plants with water cooling and oil lubrication systems).
- Stable Flow Regulation: Linear flow characteristics (flow rate proportional to stem lift) simplify process control, reducing product quality variations in chemical batching or power generation.
- Global Interoperability: Compliance with international standards allows seamless integration into export projects, avoiding delays from non-compliant components.
- Long Service Life: WCB material and metal seals resist wear and heat, extending service life to 15~20 years in standard conditions. Reduced replacement frequency lowers total ownership costs.
- Reliable High-Pressure Performance: 600LB rating and metal seals ensure safe operation in high-pressure systems (e.g., oil wellhead pipelines), withstanding pressure fluctuations without leakage.
Application
VI. Application Fields
- Petrochemical & Oil/Gas: Controls crude oil, refined fuels, and natural gas flow in storage and transfer lines. 300LB/600LB models handle high-pressure transmission, while metal seals resist oil residue buildup.
- Power Generation: Regulates boiler feedwater, condensate, and low-pressure steam flow. Precise throttling maintains stable turbine operation, and WCB’s high-temperature resistance adapts to 425℃ media.
- Municipal & Industrial Water: Manages water supply and wastewater flow in treatment plants. 150LB models balance cost and performance, with metal seals resisting waterborne particulate wear.
- General Industrial Systems: Adjusts compressed air, lubricating oil, and coolant flow in factories. Manual operation simplifies on-site control, and flanged connections allow easy maintenance during shutdowns.
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