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DG3

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Description

Three-way ball valve with screwed/butt weld ends
as switchover valve with L-bore

DN 8 – DN 50 : Full bore

 

Approvals

               

  • TA-Luft stem sealing based on the new VDI 2240 directive. Temperature range: tested up to 270 °C (temperature of the medium).
  • Meets the requirements of the pressure equipment directive PED 97/23/EC
  • Material certificate EN 10204
  • Production monitored by TÜV WO/TRD 100
  • GOST-R certificate for the Russian Federation

Product advantages

Safe connection of all actuators to the valve due to direct mounting interface in compliance with DIN 3337. No interruption of stem to actuator

Reliable stem sealing
V-rings made of PTFE and equpped with spring washer

High switching frequency
due to special primary seal design

Precise assembly
Safety in mounting - by means of body screws the center section is strongly connected with the flanges and is always in correct alignment to the flanges

Anti-blowout stem
inserted from the inside, surface of ball super-polished and precisely formed.

Safe sealing
to the outside by fully encapsulated body seal

High degree of tightness
in the bore due to the special form of the seats. The prestress of the seats results in a reliable sealing function in all pressure ranges  

Application range

Applications & Industries

  • Chemical industry
  • Petrochemical industry
  • Process plants
  • Food industry
  • Beverage industry

Technical data

Nominal sizes:
DN 8 – DN 50 : Full bore

Temperature:

-50°C to +270°C
(Please consider the appropriate pressure/temperature diagram)

Tests:
DIN 3230, T3, BA / BO-1

Materials

Body:
Material: Code:
Stainless steel 1.4408  
   
Ball:
Material: Code:
Stainless steel 1.4408  
   
Stem:
Material: Code:
Stainless steel 1.4408  
 
Ends:
Material: Code:
Stainless steel 1.4408  
   
Seat and body rings:
Material: Code:
PEEK  
POM  
PTFE / glass  
PTFE / carbon  
PTFE, pure  
UHMWPE  
 

 

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