The CHECKO-D is a compact, spring-loaded disc check valve designed for wafer mounting between flanges. The CHECKO-V features a guided lift check design and is available in straight-through, angle, or Y-pattern bodies, with flanged or welded ends depending on the model.
Steam · Hot Water · Process
Axial disc or guided check valve
Automatic backflow prevention you can rely on
ARI CHECKO check valves allow fluid to flow in one direction and shut off automatically when the flow reverses. The CHECKO-D features a spring-loaded disc within a compact wafer-style body. The CHECKO-V incorporates a guided lift plug design, available in straight-through, angle-type, or Y-pattern body configurations depending on the model. VAMECA provides the technical expertise to help you select the optimal design for your industrial piping systems.
01
Network Protection
Automatic shut-off prevents backflow to pumps and downstream equipment, safeguarding your critical systems.
02
Self-contained operation
The spring assists valve closure without the need for an actuator or auxiliary power supply.
03
Multiple configurations
Compact wafer-style check valve available in straight-through, angle-body, or welded-connection configurations.
04
VAMECA Selection
Model selection engineered to your flow rate, pressure, temperature, and piping system dimensions.
Three solutions for your industrial piping systems: large-diameter CHECKO-D with ASME wafer mounting, compact CHECKO-D, and guided-lift CHECKO-V.
CHECKO-D · ASME FLANGES
ARI CHECKO-D NPS 5″–14″
Stainless steel spring-loaded disc check valve engineered for large industrial pipelines. Features a wafer-style design certified by ARI USA for ASME B16.5 Class 150 and 300 RF flanged connections. A compact, dependable solution built for steam, water, and industrial process applications.
Construction
Spring-loaded disc
ASME Flanges
Class 150 / 300 RF
NPS Sizes
5″ to 14″
Assembly
Wafer · Between Flanges
Designed for industrial piping with ASME B16.5 flanges and high-flow systems.
CHECKO-D · COMPACT DESIGN
ARI CHECKO-D 001
Compact wafer check valve featuring a stainless steel disc and spring for installation between flanges. Available in nominal pipe sizes ranging from NPS ½″ to 4″. Its short face-to-face dimensions and versatile seating options are engineered to meet the demanding requirements of steam, hot water, and process systems.
Construction
Spring-loaded disc
Material
1.4408 Stainless Steel
Nominal Sizes
½″ to 4″
Assembly
Wafer · Between Flanges
For steam, hot water, and process fluid systems where space is at a premium.
CHECKO-V · LIFT CHECK VALVE
ARI-CHECKO-V 003 / 030
Spring-assisted guided lift check valve engineered for steam systems and industrial process applications. Model 003 is supplied with flanged ends, and Model 030 features welded connections. Available in a wide selection of materials and configurations to ensure dependable performance tailored to your specific operating conditions.
Construction
Spring-loaded guided check valve
Materials
Cast iron · Carbon steel · Stainless steel
NPS Sizes
As shown in Figure
Configurations
003 Flanged · 030 BW
For steam and process applications requiring a straight-through guided disc.
CHECKO-D or CHECKO-V: Which Check Valve Best Fits Your Needs?
Both product lines provide the same backflow prevention function, but differ in their operating mechanisms, face-to-face dimensions, and end connections. VAMECA will engineer a tailored selection aligned with your specific installation requirements.
Check Valve Type
CHECKO-D · ASME Flanged
Spring-loaded disc for installation between ASME B16.5 Class 150/300 flanges, from NPS 5″ to 14″.
CHECKO-D · Compact Design
Stainless steel disc and spring engineered for compact, space-saving wafer installation between flanges.
CHECKO-V · Guided Check Valve
Lift-check design featuring a flanged body or welded ends, as shown.
Selection Guide
Media and Temperature
Steam, water, air, or process media, along with operating temperature.
Pressure and Flow Rate
Line pressure, standard flow rate, and shut-off conditions.
Size & End Connection
NPS, flange class, and available piping clearance.
Looking to replace an existing check valve or outfit a new piping system? Send us your operating conditions and dimensions for an ARI-CHECKO quote.
CHECKO Check Valves for Steam, Water, and Process Applications
CHECKO check valves provide reliable non-return protection for piping systems requiring strictly unidirectional flow. Available in a wide range of designs and materials, they are engineered to meet the demanding requirements of your industrial applications.
CONSTRUCTION & MAINTENANCE
Disc, Guided Check, and Sealing Options
Both ARI CHECKO lines utilize a return spring for automatic shut-off. A wide selection of seat options and materials allows you to precisely configure the check valve to match your facility's specific process media and operating temperatures.
Spring-loaded stainless steel disc
Compact design featuring a metal disc, precision guidance, and return spring.
Metal or Soft Seated
Standard metal-to-metal seating, with EPDM, NBR, or FKM seat options depending on the model.
Guided Lift Check Valve
Spring-loaded metallic check valve, available in straight-through, angle, and Y-pattern configurations to suit your connection requirements.
Request a Quote for ARI-CHECKO Valves
With just a few details about your piping system, our experts can quickly specify the right check valve for your project.
Services
Media and Temperature
Please specify the media, operating temperature, and service conditions.
Operation
Pressure and Flow
Please specify the line pressure and operating flow rates.
Dimensions
NPS Size
Pipe size and mating flange pressure class.
Assembly
Wafer (between flanges) or welded ends
Specify wafer, flanged, or weld ends, along with any face-to-face or overall length constraints.
Complete your piping systems with ARI's comprehensive product lines
VAMECA also supports your operations with STOBU isolation valves, STEVI control valves, and ARI steam systems, tailored to your facility's specific requirements.
Isolation
ARI STOBU
Globe isolation valves for steam systems and industrial fluids.
Control & Regulation
ARI-STEVI
Control valves engineered for precise management of pressure, flow, and temperature.
Steam Systems
ARI System
Pre-assembled packages for steam pressure reduction and condensate recovery.
FAQ
CHECKO-D, CHECKO-V, ASME connections, imperial sizes, and industrial selection.
Need to install or replace an ARI-CHECKO check valve?
Provide us with your part number, pressure ratings, media, and mounting configuration. VAMECA delivers the technical expertise to help you select the optimal CHECKO-D or CHECKO-V valve for your Canadian operations.
Your Local Technical Representative in Quebec
Expert technical consultation and quotes for your industrial equipment across Canada.
Tailored Selection
Selection of check valves, materials, and connections tailored to your piping network.
Technical Data Sheet
ARI technical data sheets and key specifications to streamline your procurement process.
