KLINGER piston valves KVN

The original, tried and tested a million times over. The KLINGER piston valve is exceptionally durable and universally applicable.
Due to constant technical product improvement, KLINGER is the leading manufacturer of piston valves. Different types of connections (flange, threaded, butt and socket weld ends) and piston valves produced according to DIN and ANSI standards complete the wide product range of KLINGER’s industrial valves.

The KLINGER piston valve marked the invention of the classic industrial valve and laid the foundation for the pioneering role in piston valve technology.

Product Advantages piston valves KVN

  • Excellent control characteristics
  • Low maintenance
  • Reliably tight in the bore and to atmosphere in accordance with EN 12266-1 – leakage rate A
  • Suitable for steam condensate-alternating operation as well as temperature shock operations
  • Special sealing elements for highest actuation count
  • No erosion on sealing surface
  • Revisable without requiring removal from pipe system
  • Fire Safe
  • Automatable

Special design piston valves KVN

  • Oxygen version (oil, grease and silicone-free)
  • “TA Luft”
  • Control end position (mechanically and inductively)
  • Regulation design
  • ISO flange with actuator mounting
  • Heating jacket

Product details

PN 16/40/63, Class 150/300
DN 15-200, ½-8″
Material Grey cast iron, nodular cast iron, cast steel, stainless steel
Temperature -10 °C to +400 °C
Design Flanges, threaded connections, butt and socket weld ends
Type Piston valve

Overview of KVN Piston Valves

KVN DN 15-50 Flange design
KVN DN 65-200 Flange design
KVN DN 65-150 Flange design
KVN 1/2″-8″ ANSI
KVMN 1/2″-2″ Sleeved design
KVSN 1/2″-2″ Butt and socket weld ends

KLINGER Ball Valves

Reliably sealed – inside and out

Ball valves are modern shut-off valves which are very reliable in operation. The circular bore guarantees a flow characteristic which is similar to a pipe. As there is no shut-off device in the flow, ball valves with full bore are piggable without any problems.
Due to the usage of standardised mounting flanges, the optimizing of operating torques and the high compatibility to different actuator designs and makes, our ball valves keep up with the increasing of automated production processes and the requirement of remote-controlled industrial facilities.

KLINGER Fluid Control offers five product ranges of ball valves which differ in three main features: nominal width range, construction and available end connection. The table below provides an overview on the available product ranges:

Product overview ball valves:

  • Hot water, steam and heat transfer oils: in power plants and district heating supply
  • Viscous media: e.g. bitumen (oil industry and refineries), molasses (breweries)
  • Liquid and gaseous media in refineries and tank farm construction (hydrocarbons, fuels and oils)
  • Liquid gas and natural gas
  • Compressed air supply in the industry
  • Dusty media: cement in plants and on silos
  • In the paper and textile industry: dye liquor, digester liquor
  • In the chemical industry: acid-resistant ball valves for chemical solutions (acids, bases, etc.)

Product details

Types DN Design Connections
Ballostar KHA DN 15-125 3-piece flange, threaded connection, welding ends
Ballostar KHE DN 15 – 200, ½“ – 8“ 2-piece flange
Ballostar KHI DN 150-1000 2-piece (optionally fully welded) flange, weld ends
Monoball KHO DN 15-250 one piece, fully welded flange, threaded connection, welding ends



2-piece ball valves
PN 16/40, Class 150
DN 15 – 200, ½“ – 8“


PN 16/25/40
DN 150 – 1000 (KHSVI VVS up to DN 800)


3-piece ball valves
DN 15–125


2-piece ball valves
PN 16/40, Class 150
DN 15 – 200, ½“ – 8“