What Is The Most Common Type Of Stainless Steel Globe Valve?
When selecting stainless steel globe valves, two predominant constructions emerge – standard inline globes and compact tee-pattern valves. Both deliver reliable flow control yet in different configurations suited for particular installation constraints.
Inline globes align with pipeline direction for direct flow control, while tee-patterns change direction, useful where space proves limited.
We’ll compare both these stainless valve types by structure, operation, applications, and pros/cons.
Inline Globe Valves
The inline globe design interposes its spherical disc-and-seat assembly directly into the flow path, regulated by the valve stem and handwheel. This straight-through architecture imparts little flow direction change, minimizing turbulence.
Upstream pressure contributes to sealing by wedging the disc downward to increase seat contact. Meanwhile, the downstream port vents any leakage via the bonnet. Inline globes also throttle flows effectively in part-open positions.
Tee Pattern Globe Valves
Constructed at 90-degree angles to the pipe run, tee-pattern stainless steel globes offer more compact envelopes. Their three-port “T” configuration reroutes flow using an internal chamber behind the seat area. This allows installing valves close to walls for confined process skids and manifolds.
The tee-pattern orientation still allows high-pressure sealing aided by upstream forces below the seat. However, the side inlet port introduces minor turbulence. These valves are installed in any orientation but upside-down to avoid particle accumulation across the seat.
Globe Valve Comparison
When selecting between inline and tee-pattern stainless steel angle globe valves, engineers weigh key factors:
- Installation Space
Tee-pattern globes save ample space using their directional flow change. But inline globes fit pipelines with direct accessibility for service.
- Pressure Rating
Both valve patterns achieve similar pressure class ratings up to 2500 psi by utilizing upstream pressure to enhance sealing.
- Flow Characteristics
Inline globes allow straight-through flow with little turbulence, while tee-patterns induce modest deviations yet run quietly.
- Maintainability
Inline bodies easily open for component access compared to enclosure tee-pattern designs. But both still enable full disassembly.
- Performance
Ultimately, both patterns provide comparable cycle life, tight sealing, and capable flow regulation in stainless steel constructions.
Introduction to PANS
PANS manufactures both robust inline and innovative tee-pattern stainless steel globe valves for chemical, pharmaceutical, food/beverage, and industrial applications.
Over 35 years, their specialized expertise has refined globe valve sealing and performance to excel even in saturated steam, corrosive, freezing, or high cycling services. PANS globes undergo exhaustive testing well beyond 10,000 open-close cycles.
For innovation in stainless steel flow control valves, discerning engineers worldwide turn to PANS. Contact their application experts today to explore both inline and creative tee-pattern solutions precision-engineered to upgrade your processes.
Conclusion
Specifying valves for critical stainless steel pipe systems involves striking the right balance between compact flow direction changes versus straight-through configurations. Tee-pattern stainless globes save considerable space in tight skids and cabinets using creative right-angled constructions. Yet, inline valves allow direct accessibility and minimized turbulence.
Both deliver the stainless durability, chemical compatibility, temperature resilience, and flow control needed for demanding applications. Work with PANS application engineers to determine whether innovative tee-pattern or traditional inline globe valves better suit your infrastructure constraints, pressure sealing demands, and flow control requirements.
- The Complete Guide to Stainless Steel Globe Valve - Xintai Valves
- Precision and Reliability: Stainless Steel Globe Valve Manufacturer - Xintai (xintaivalves.com)
- Stainless Steel Globe Valve Manufacturer - NTGD Valve
- SIMULATION OF FLUID FLOW THROUGH A STAINLESS STEEL GLOBE VALVE USING ENGINEERING FLUID DYNAMICS
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