Search within pages and documents

Request contact from Alfa Laval

Please select your country.

LKC Non-return Valve

Specially designed for use in stainless steel pipe installations, LKC-2 non-return valves prevent the reverse flow of fluids. Widely used in various processes throughout the sanitary industry, these standard non-return valves are safe and highly reliable.

lkc2_non-return_regulating_valve_right_side_640x360.png
  • Documents
  • Related industries
  • Related services

Safe and reliable process protection

Alfa Laval LKC-2 Non-return valves are highly reliable check valves ensure single directional product flow through process lines. This provides protection for process equipment that can be affected by reverse flow and prevents pressure surges and/or system shutdown.

Non-return valve range

The standard range of Alfa Laval LKC-2 non-return valves are constructed of standard 304 or acid-resistant 316L stainless steel. Easy to install, the valves are designed to handle maximum product pressure up to 10 bar and temperatures ranging from -10°C to 140°C (EPDM). For added versatility, these check valves are available with either a semi-bright or polished finish, and a variety of welding ends for ISO or DIN connections.

For more information, please refer to Documentation.

  • Highly reliable
  • Easy to install
  • Protection for process equipment

Latest 'Close at hand' online version  

Find an Alfa Laval product

How it works

Construction

The Alfa Laval LKC-2 non-return valve consists of an upper valve body, lower valve body, valve plug, seal ring, and guide disc. The valve body is assembled by means of a clamp and hygienically sealed with a special seal ring. A guide disc and four legs guide the spring-loaded valve plug with an O-ring seal. LKC-2 has welding ends for ISO or DIN connections.

Working principle

The spring acts on the valve plug, keeping the valve closed until the force from the pressure in the inlet exceeds the force of the spring. If a reverse flow should occur, the spring force and the pressure from the outlet will keep the valve closed.

Options

  • Product wetted seal rings in NBR or FPM
Check_Valve_TD406012_b.jpg

1 = Flow direction.

Shows the optimal built-in situation to ensure the valve is drainable. The four guide legs of the valve cone ensure good alignment. 90° rotation.

Download the product models in Neutral or Native CAD file formats. It is also possible to download 3D PDF files.

 View CAD portal 

Visit the animations site and take a look inside a product to see and understand how it works. 

View animations 

To keep you updated on important sustainability issues and opportunities in your industry and processes.

Learn more

Part of a broad valve range

Alfa Laval offers a comprehensive range of valves intended for hygienic applications in the dairy, foodbeverage,home carepersonal care, biotechnology and pharmaceuticals.

For a broader valve range, explorer the different product categories:  ball valves, butterfly valvesdiaphragm valves, double seal valves, double seat valvesregulating valves, safety valves, sample valves, shutter valves and single seat valves.

Request information

Request information for LKC Non-return Valve

;