Flow Conditions
Review operating flow and differential pressure when selecting the mechanism.
ALFACOM ENGINEERING LTD.
Check Valves
Self-acting valves for limiting reverse flow in piping systems. Select the closing mechanism and installation arrangement to match the fluid, flow conditions and available differential pressure.
Check Valves · ALFACOM catalogue
THE PRODUCT RANGE
Explore the Range
Explore the equipment and selection topics below, then review the detailed catalogue for the selected product.
English product details and the corresponding technical PDFs are provided below.
Installation
Confirm installation orientation and the selected model’s requirements.
Model Documentation
Explore the listed API 602 and API 6D families, then confirm the actual model specification.
Explore Catalogue Models
Read the English model details below. Product images are illustrative; confirm the exact configuration, dimensions and operating limits in the model documentation. Availability and lead time are confirmed on enquiry.
API 602 check valve family
API 6D check valve family
API 602 Forged Steel Check Valve Family
The attached forged-steel check-valve catalogue covers lift/piston, ball and swing arrangements. It also describes different bonnet constructions and full or conventional port options.
Socket-weld and NPT screwed ends are included in the catalogue, with other connections shown for applicable variants. Match the exact valve type, end connection, body and trim materials, pressure class and bonnet configuration to the model table.
Provide fluid, flow rate, upstream and downstream pressures, temperature, line size, connection standard and installation orientation. Check the selected design's operating and installation requirements; the family designation does not identify a single interchangeable valve.
API 6D Check Valve Family
The attached cast-steel check-valve catalogue includes swing-check arrangements and model-specific material, connection and dimensional information. Select the complete configuration for the process duty.
The catalogue shows body and trim alternatives and different end connections. Verify the model, pressure class, materials, face-to-face dimension and connection standard against the required installation.
Provide the fluid, operating flow, pressure, temperature, line size and permitted orientation. Review closure behaviour and the system operating conditions when selecting a check valve; a nominal size or standard designation alone is insufficient.
APPLICATION BEFORE SPECIFICATION
Selection Starts with Your Application
Provide the fluid, size, operating pressure and temperature, normal and minimum flow, installation orientation, permitted pressure loss and transient conditions. Verify opening and closing behaviour, materials and installation requirements for the selected model.
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.