Gate Valves
Check the wedge, bonnet, connections and installation requirements for isolation service.
ALFACOM ENGINEERING LTD.
Gate and Globe Valves
Explore gate and globe valve designs for isolation or flow control, according to the selected model. Gate valves are generally selected for open or closed service; globe valve duties must be checked against the model specification.
Gate and Globe Valves · Illustrative catalogue image
THE PRODUCT RANGE
Explore the Range
Explore the equipment and selection topics below, then review the detailed catalogue for the selected product.
Explore the English model guidance below and review the ALFACOM-hosted technical documents for the selected configuration.
Globe Valves
Select the model for the required isolation or flow-control duty.
Special Service
Explore listed bellows-sealed or cryogenic families using the model documentation.
Explore Catalogue Models
Review the model details in English below. Confirm the exact configuration and operating limits using the linked technical document.
API 600 and API 6D gate valve families
Bellows-sealed gate valve family
Cryogenic gate valve family
Cryogenic globe valve family
ALFAMATIC CW GAV threaded gate valve
ALFAMATIC CW GLV threaded globe valve
API 600 / API 6D Gate Valve Families
Cast-steel gate valve catalogue covering different bonnet, wedge, connection and operating arrangements. Select the applicable design basis for the requested valve.
Specify the required standard, pressure class, size, body and trim materials, end connections and operation. API 600 and API 6D are separate design specifications; confirm which applies to the supplied configuration.
Bellows-Sealed Gate Valves
Gate valve family with a metal bellows at the stem sealing arrangement. The catalogue shows the WZ40H design and alternative body and trim materials.
Confirm the fluid, operating cycle, pressure and temperature, bellows material, connections and required documentation. Select for isolation duty and check the maintenance and installation requirements for the exact configuration.
Cryogenic Gate Valves
Extended-bonnet gate valve family for specified low-temperature service. The catalogue shows the DZ41Y design and model-dependent materials and dimensions.
Provide the minimum design temperature, fluid, operating pressure, pressure class and connections. Confirm material suitability, bonnet orientation, cleaning requirements and any cavity-pressure provisions for the selected valve.
Cryogenic Globe Valves
Extended-bonnet globe valve family for specified low-temperature service. The linked document contains the DJ41Y globe-valve design alongside related cryogenic gate-valve information.
Use the globe-valve section for model selection. Confirm the minimum design temperature, fluid, flow direction, pressure drop, materials and required documentation for the selected configuration.
ALFAMATIC CW GAV Threaded Gate Valve
Investment-cast gate valve with a rising stem and female threaded ends, intended primarily for open or closed isolation service.
Match the thread standard and wetted materials to the pipework and fluid. Allow clearance above the valve for the rising stem and confirm the model-specific operating limits.
ALFAMATIC CW GLV Threaded Globe Valve
Investment-cast globe valve with a rising stem and female threaded ends, for manual isolation or flow adjustment where the selected configuration is suitable.
Confirm flow direction, pressure drop, sealing materials and service conditions. For a flow-control duty, provide the required flow range and differential pressure for selection.
APPLICATION BEFORE SPECIFICATION
Selection Starts with Your Application
Provide the required duty, fluid, pressure and temperature, size, connections, body and sealing materials, frequency of operation and installation dimensions. For special service, include the design specification and required documentation.
Catalogue & Technical Documents
Review the model-specific technical information and installation requirements. Send a specification, drawing or existing model reference if you need help selecting equipment.
Discuss Your Application
Send your requirements or a photo of the existing equipment for technical assistance and a quotation.
Availability and lead time are confirmed for the requested model and quantity.