Globe Valve

Aluminum Bronze Globe Valve — Flanged Marine & Seawater Service

Valve Type
Aluminum Bronze Globe Valve — Flanged Marine & Seawater Service
Size Range
DN15 – DN300 (1/2" – 12")
Pressure Class
PN16 – PN40 (Class 150 – 300)
Body Material
C95800 Aluminum Bronze / C83600 Bronze / C92200 Bronze
Seat Material
Integral Bronze / SS316 / Stellite Overlay
End Connections
Flanged (ASME B16.5 / EN 1092-1) / Screwed
Operation
Handwheel / Gear Operator / Electric Actuator
Working Temperature
−10°C to 260°C
Design Standard
ASME B16.34 / BS 1873 / MIL-V-24364
HD Flowtech aluminum bronze globe valves are engineered for isolation and throttling service in marine, offshore, and seawater pipeline systems where standard carbon steel and stainless steel body materials are not suitable due to seawater corrosion, biofouling, and dezincification. The C95800 aluminum bronze cast body provides excellent resistance to seawater corrosion, cavitation erosion, and biofouling — making it the preferred material for seawater cooling systems, ballast water systems, fire suppression lines, and offshore platform utility piping where long service life in aggressive marine environments is required. Aluminum bronze also provides inherent non-sparking properties, making these valves suitable for installation in hazardous areas where ferrous metal spark ignition is a safety concern. The bolted bonnet allows disc and seat inspection and maintenance without removing the valve from the pipeline. A rising stem with handwheel provides precise, incremental flow control and clear visual open/closed position indication across the full stroke. The open yoke design allows visual stem and packing condition monitoring during operation. Flanged end connections to ASME B16.5 Class 150 ensure direct integration into standard marine and offshore pipeline flange systems.

Globe Valve Technical Overview

How to Choose the Right Globe Valve for Industrial Applications

Globe valves are selected for isolation and throttling service in process, steam, marine, and industrial pipeline systems where precise flow control and tight shut-off are required in a single valve. The disc-and-seat design allows incremental flow regulation across the full stem stroke, making globe valves the standard specification for steam conditioning, pressure letdown, flow balancing, and process control duty where gate and ball valves cannot provide the required throttling capability.

 

Straight pattern globe valves are the most common configuration, routing flow through an S-shaped body path for reliable throttling and isolation across a wide range of pressure classes and temperatures. Angle pattern globe valves combine isolation and 90° flow direction change in a single body, eliminating a separate elbow fitting and reducing potential leak points in space-constrained installations. Y-pattern globe valves provide lower pressure drop than straight pattern designs by routing flow through a 45° seat angle — preferred where minimizing pressure drop is a system design requirement while retaining full throttling capability.

 

Cast steel bodies (WCB, CF8, CF8M) cover Class 150–600 general process, steam, and utility service. Forged steel bodies (A105N, F316, F11, F22) are specified for high-pressure small-bore service at Class 600 and above. Extended bonnet designs protect packing from high-temperature process fluid contact and prevent stem icing in cryogenic service. Pressure seal bonnet construction is standard for Class 900 and above. Aluminum bronze (C95800) body construction is selected for seawater cooling, ballast water, and marine utility service where carbon steel and stainless steel cannot provide adequate resistance to seawater corrosion, cavitation erosion, and biofouling.

 

Body material selection — carbon steel (WCB) for standard service up to 425°C, alloy steel (F11, F22) for high-temperature steam up to 600°C, stainless steel (CF8M, F316) for corrosive and cryogenic service, and aluminum bronze for marine and seawater applications — is determined by operating temperature, fluid type, and corrosion requirements. Design standards ASME B16.34, BS 1873, and API 623 govern globe valve pressure-temperature ratings and material requirements across all service conditions

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How to Choose the Right Globe Valve for Industrial Applications

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