LK Armatur

LK Armatur is a leading producer in Europe, manufactures millions of valves per year for the global HVAC market. Our solutions are based on a comprehensive view of how valves, control units, components and prefabricated products work together.
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LK Systems

LK Systems is the leading manufacturer of easy-to-install systems for heating and tap water distribution and pre-insulated pipes in the Nordics. Through our prefabrication factory, we also provide tailor-made solutions that simplify the installation process even further.
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LK Pex

Our PEX Pipe Extrusion business area is an innovative manufacturer of high-quality plastic pipes for the heating and plumbing industry. Our core is the efficient, high-technology production process for crosslinked PE-Xa pipes, resulting in products with a unique combination of flexibility and hydrostatic strength.
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LK Group

LK is a family-owned trading and production group, operating on a global scale within the HVAC-area. We are the market leader in Sweden and has an increasing sales of products, systems and solutions in the Nordic countries, Europe and the USA.
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NN Check Valve

Non-return valve NN is used in heating and cooling systems.

Variants

NN - Male / Female cylindrical pipe thread 2 variants

Article	Dim.	Weight (kg)	DN	Item List
055008	½"	0.1
055009	¾"	0.1	DN 20

Description

Non-return valve NN is used in heating and cooling systems.

Technical Data

Max. working pressure:	1.0 MPa (10 bar)
Working temperature:	Max. 90°C
Thread standard:	G - male thread, G - female thread
Material, valve body:	Brass
Material, sealing:	NBR
Material, check valve:	POM
Material:	Valve spring: stainless steel

Technical Diagrams

Pressure drop diagram

Product sheet

NN Check Valve