Brdr. Christensens PR Plug Valves

‘PR’ has become synonymous with Brdr. Christensen ApS and is known all over the world for its robust and reliable shut-off valves.
The plug valves are characterised by their durability and reliability, even under extreme conditions.
With innovative design and high-quality materials, they offer excellent tightness and ease of use,
meeting the requirements of modern industrial applications.

The PR plug valves are not only known for their high functionality, but also for their ease of maintenance,
which enables quick and uncomplicated servicing.
In addition, they are available in various designs to meet the specific needs of our customers.

At KÄHLER Industrie-Armaturen you will find a wide range of PR plug valves that are ideal for a wide variety of applications,
including district heating and cooling supply, industrial and plant engineering, apparatus and pipeline construction, cement industry, chemicals and petrochemicals.

Are you looking for alternative solutions?

KÄHLER Industrie-Armaturen also offers high-quality plug valves developed and produced in-house.

Find out more here

Applications PR plug valve

constructed for many different applications in heating, cooling, oil or gas systems, particularly suitable for difficult applications in industry, the cement industry, chemicals or petrochemicals as well as for systems with long service lives
suitable for all non-aggressive media, such as district heating or cooling water, oil, compressed air, high pressure and gas as well as various chemicals, especially suitable for media containing solids, abrasive or crystalline bodies
robust and reliable even at high pressure and temperatures up to +250°C
operating conditions according to data sheet

Construction PR plug valve

robust body made of cast iron, steel or stainless steel
straight-lined, compact design even with large nominal diameters
pressure-balanced design (depending on model)
adjustable conical or cylindrical plug made of cast iron, steel, stainless steel, duplex, titanium, Hastelloy or PTFE coated with an exact fit in the valve body without dead space
one-piece or decoupled design of plug and stem (depending on model)
constant sealant film between body and shut-off body that can be re-pressed via integrated sealant screw or with metallic seal without lubricating layer (depending on model)
stem seal with maintenance-free, glandless O-ring made of Perbunan or PTFE with stainless steel spring or O-ring + graphite
90-degree actuation with open/close stop using a star spanner (up to DN150), worm gear, electric, pneumatic or hydraulic actuator
double block and bleed function for critical media (depending on model)

Versions PR plug valve

Nominal sizes:
DN15-900
Pressure ratings:
PN6-420
Connection types:
flange, thread or welding ends
Bore types:
full rectangular bore or reduced rectangular bore,
full round bore for special applications
Operation:
optionally available with hand lever, manual gear, pneumatic, electric or hydraulic drive

Features PR plug valves

PR straight-through plug valve type 1

robust, compact, straight-lined design
uncomplicated and cost-effective three-part design
cylindrical plug shape
precisely fitting, dead space-free design of body and cylinder with sealant film
complete bi-directional tightness
including resealability from the outside during operation
undemanding behaviour in use
very good flow values

PR High-pressure plug valve type 5

robust, compact, straight-line design
multi-piece, pressure-balanced design
conical, readjustable, PTFE-coated plug for increased tightness and low-wear switching
improved switchability thanks to decoupled design of plug and spindle
precisely fitting, dead space-free design of housing and plug with sealant film
complete bi-directional tightness
increased safety even with extreme pressure and temperature fluctuations thanks to independent multiple seals to the outside (V-seal ring, lip seal, O-ring seal) and from the outside, sealant film that can be re-pressed during operation
undemanding behaviour in use
very good flow values

PR conical plug valve type 9

robust, compact, straight-lined design
multi-piece design
conical, adjustable plug for increased tightness
low-wear switching thanks to one-piece design of plug, spindle and turntable
precisely fitting, dead space-free design of housing and plug with sealant film
complete bi-directional tightness
undemanding behaviour in use
very good flow values
easy to maintain thanks to top entry

DBB plug valve type 55

robust, compact, straight-line design
multi-piece, pressure-balanced design
two independent end bodies with integrated double block & bleed function particularly suitable for critical media
two conical, adjustable, PTFE-coated plugs for increased tightness and low-wear switching
weight- and space-saving design - installation space corresponds to that of a conventional valve
improved switchability thanks to decoupled design of plug and spindle
precise fit, dead space-free design of body and plug with sealant film
complete bi-directional tightness
increased safety even with extreme pressure and temperature fluctuations thanks to independent multiple seals to the outside (V-seal ring, lip seal, O-ring seal) and from the outside, sealant film that can be re-pressed during operation
undemanding behaviour in use
very good flow values

PR plug valve for the cement industry

robust, compact, straight-lined design
multi-piece, pressure-balanced design
conical, readjustable, case-hardened plug with PTFE coating for increased tightness and low-wear switching
improved switchability thanks to decoupled design of plug and spindle
precisely fitting, dead space-free design of body and plug without sealant channels and without lubricating layer
extremely wear-resistant metallic seal thanks to special precision grinding process of seat and plug
complete bi-directional tightness
increased safety, especially with abrasive or crystalline media, thanks to three independent seals from the outside
undemanding behaviour in use
very good flow rates
economically attractive alternative to cost-intensive (armoured) valves coated with Stellite