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Globe Valve
1. Product Overview
Globe valves are linear motion valves designed for precise flow regulation and reliable shut-off in piping systems. Their spherical body shape and disc-to-seat design provide superior throttling capabilities compared to gate or ball valves.
Key Advantages
✔ Precise Flow Control - Excellent throttling characteristics
✔ Positive Shut-off - Bubble-tight sealing (Class VI)
✔ Easy Maintenance - Top-entry design for in-line repair
✔ Versatile - Suitable for liquids, gases, and steam
✔ High-Pressure Capable - Designs available up to ASME 4500#
2. Valve Types & Construction
By Body Design
|
Type |
Flow Path |
Pressure Drop |
Applications |
|
Standard (T-Pattern) |
High resistance |
High |
General service |
|
Angle Pattern |
90° change |
Mäßig |
Frequent cycling |
|
Y-Pattern |
Low resistance |
Low |
High pressure steam |
|
Oblique Pattern |
Optimized |
Very Low |
Large diameter |
Body Materials
Cast Iron (ASTM A126) - Water, oil services
Carbon Steel (ASTM A216 WCB) - High temp/pressure
Stainless Steel (ASTM A351 CF8/CF8M) - Corrosive media
Alloy 20 - Acid services
Bronze - Marine applications
3. Technical Specifications
|
Parameter |
Specification Range |
|
Size Range |
DN15-DN600 (½"-24") |
|
Pressure Rating |
PN16-PN760 (ASME 150-4500) |
|
Temperature Range |
-196°C to +650°C |
|
Leakage Class |
Class IV (standard), Class VI (bubble-tight) |
|
Flow Coefficient (Cv) |
5-5000 (size/design dependent) |
4. Disc & Seat Options
Disc Types
Plug Disc - For throttling service
Composition Disc - Resilient sealing
Metal Disc - High temperature service
Needle Disc - Precise flow control
Seat Materials
Stellite 6 - Hardfacing for erosive services
PTFE - Cryogenic to +200°C
Graphite - High temperature sealing
Metal-to-Metal - Fire-safe designs
5. Stem & Bonnet Designs
Stem Types
Rising Stem - Visual position indication
Non-Rising Stem - Space constrained areas
Sliding Stem - For angle pattern valves
Bonnet Options
Standard - Bolted design
Pressure Seal - For ASME 900#+
Bellows Seal - Zero emission
Extended - For cryogenic service
6. Industry Applications
✔ Power Generation - Steam turbine bypass
✔ Oil & Gas - Wellhead control
✔ Chemical - Reactor feed control
✔ Water Treatment - Pump discharge
✔ HVAC - Chilled water balancing
7. Standards Compliance
API 602 - Compact steel globe valves
BS 1873 - British standard
MSS SP-80 - Bronze globe valves
ISO 10434 - Bolted bonnet steel valves
TA-Luft - Low emission standards
8. Quality Assurance
100% Pressure Testing - Shell & seat tests per API 598
Material Certification - 3.1/3.2 mill certificates
NDT Inspection - RT/UT for critical services
Functional Testing - Full stroke operation verification
9. Why Choose Our Globe Valves?
✅ Precision Machining - CNC-turned seats for perfect sealing
✅ Custom Configurations - Special trims, materials, and connections
✅ Smart Ready - IoT-enabled position monitoring available
✅ Global Certifications - CE, CRN, GOST, API monogram
Request Cv curves, torque charts, or material selection guides!
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