IVAR Y6623112 - Stainless Steel Threaded Check Valve Series Y6 - 6/4''; L=119mm BRA.Y6.623

Product detailed description

This stainless steel threaded check valve is commonly used in industrial and commercial applications such as HVAC systems, water supply lines, pumping stations, and chemical processing environments. Installers and technicians working on closed-loop heating and cooling circuits, water distribution systems, and fluid transport lines will find this valve suitable for ensuring unidirectional flow. Its design allows for installation in any orientation, making it versatile for complex piping layouts. The valve’s sealing and structural integrity are critical in maintaining system efficiency and preventing backflow in pressurized systems.

Its compact size and robust construction make it ideal for use in tight spaces and high-pressure environments. The valve is often found in systems where glycol-based solutions (up to 50%) are used for antifreeze purposes. However, it is important to note that this model is not suitable for steam applications due to limitations in its sealing materials and operating principles.

Technical parameters

Material: body	telo
Weight	1.209 kg
Code	Y6623112
Brand	IVAR

Installation and connection

To install the check valve, ensure the pipeline is clean and free of debris. The valve is equipped with female/female ISO 228-1 threads ranging from 1/4 inch to 2 inch. Verify that the thread type and size match the adjacent pipe fittings. A torque wrench should be used to tighten the connections according to the manufacturer’s recommended specifications to prevent leakage and thread damage. Ensure the valve is oriented correctly to allow flow in the intended direction. Common installation errors include incorrect orientation, over-tightening, or using incompatible thread sealants. Always confirm the flow direction indicated on the valve body before securing it in place.

Compatibility and accessories

This check valve is compatible with a wide range of systems that require unidirectional flow control, including water heating, HVAC, and industrial fluid transport. For optimal performance, it should be paired with piping and fittings that meet ISO 228-1 standards. Additional components such as union couplings or pipe unions may be required for easier maintenance or system expansion. No specific accessories are listed for this model, and no related products are provided for reference.

Technical background for designers

The valve operates on a spring-loaded disc mechanism. When the forward flow reaches a differential pressure of 0.15 bar, the disc lifts off the seat, allowing flow through the valve. When the flow stops or reverses, the disc is forced back onto the seat by the spring and the pressure difference, sealing the system. The body is made of stainless steel A351 CF8M, which offers good resistance to corrosion and thermal expansion. The disc is also stainless steel, while the spring is made of AISI 316 for enhanced durability in corrosive environments. The sealing material is PTFE, which provides low friction and chemical resistance. The valve’s performance depends on proper system pressure, correct orientation, and the quality of the surrounding piping connections.

Service and operation

Regular inspection of the valve is recommended to ensure continued performance. Check for signs of wear, corrosion, or leakage around the threads and seating area. If the valve fails to close properly or shows excessive vibration, disassemble and inspect the internal components for damage or contamination. No scheduled service intervals are specified in the brief. Always ensure the system is depressurized and isolated before performing any maintenance.

Frequently asked questions

Can this valve be used in systems with glycol solutions?
Yes, it can be used with water containing up to 50% glycol content. The materials are suitable for such mixtures within the specified operating conditions.

Is the valve suitable for steam applications?
No, it is not suitable for steam due to the sealing material and operating characteristics of the design.

What is the minimum pressure required to open the valve?
The valve requires a minimum differential pressure of 0.15 bar to open and allow flow.

Can it be mounted in any position?
Yes, the valve is designed for installation in any orientation. However, the flow direction must be confirmed according to the markings on the valve body.