High-performance valve for extreme operating conditions
BALL VALVE TYPE DG
Size
DN 15 - DN 350
Pressure max.
-1 bar up to +250 bar
Temperature
from -196°C to +500°C
High-performance valve for extreme operating conditions
BALL VALVE TYPE DG

The ball valve type DG features a spring-loaded, dead space-free ball sealing system with full bore flow. It is available in both a floating ball design and a trunnion-mounted version for larger nominal sizes and higher pressures. Materials, construction, and connections are customized to meet specific process requirements.

Additionally, our 2-way ball valve type DG is available with a metal-to-metal sealing system between the ball and seat, making it ideal for extreme pressures, high temperatures, frequent switching cycles, and aggressive media.

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Cavity free
Full bore
Spring loaded sealing system
Blow out proof stem

Technical data

  • Application

    Applicable

    › Pipeline

    Areas of application:

    › Chemical

    › Pharmaceutical

    › Food


  • Medium

    › Gases

    › Fluids

    › Emulsion

    › Sirup

    › Suspension

    › Granulate materiale material

    › Powder

  • Design

    Design

    › Cavity free

    › Full bore

    › Spring loaded ball sealing system

    › Sealing pressure adjustable by means of spiral coil springs

    › Chambered coil springs

    › Self adjustable, maintenance free stem sealing with additional o-ring

    › blow out proof stem

    Additional according to customer requirements:

    › Metal to metal sealing system for high pressure, high temperature and abrasive operating conditions

    › Heating jacket

    › Flushing connection

    › Special sizes

    › Special face to face length

    › Special piping connection

    › ANSI connection

    › Extended stem

    › Double packed stuffing box design

    › Antistatic- Design

    › Fire Safe Design

    › Product wetted surfaces Ra<0,8μm

    › Electropolished surfaces

    › Oil - and fat free design

    › Silicone free design

    › Further extras available on request

    Connection to pipeline:

    › Flange acc. to EN1092-1

    › Weld end acc. to DIN11850

    › Thread acc. to DIN11851

    › Clamp acc. to DIN32676

    › ANSI flange connection

    Tightness test:

    › Acc. To EN 12266-1 leak rate A

    Actuator mounting flange:

    › DIN/ISO 5211

    Tightness test:

    › EN12266-1 Leckrate A

    Certificates:

    › TA-Luft

    › ATEX 94/9/EG

  • Material

    Metal: 1.4404

    Ball sealing: PTFE & PTFE/25% Glass fibre

    O-Rings: Viton, EPDM or FEP-Viton

    Stem sealing: Packing out of PTFE or pure graphite with additional o-ring

    Coil springs: 1.4404

  • Special material

    Metal: austenite stainless steel (904L, 472/649, etc.) nickel- base alloy ( Hastelloy ® B, Hastelloy ® C, C276, Alloy 59 etc.) Duplex , Titanium, Monel ®, Inconel ®, Incoloy ®, Zirconium
    Further materials on request

    Ball sealing: PTFE- Compounds (glass, carbon, graphite, stainless steel, etc.), PEEK, Polyimide, Metal to metal sealing system - High velocity oxygen spraying (HVOF), Flame spraying with additional thermal compaction, Laser deposition welding and Plasma-transferred arc welding (PTA)
    Further materials on request

    Further sealing: graphite, FEP coated Compounds, PFA coated Compounds, Kalrez, high- and low temperature - Kalrez, PFA/FEP coated stainless steel for cryogenic application, silver coated metallic o- and c-rings

    Conformity: USP, FDA, EFSA, ADI, 3-A, oil- and fat free
    Further conformity on request

    Stem sealing: PTFE chevron packing, high temperature packing
    Further materials on request

    Coil springs: Hastelloy ®
    Further materials on request

  • Downloads

    Downloads

    Data sheet   |  Product brochure

    Assembly instruction

Advantages

ATEC Straight-way Ball Valve Typ_DG

image

Cavity free

The usual cavity between ball and housing in non- cavity free ball valves give cause for disturbance because residual products can crystallize, polymerize and so affect the function.

› Clean, non- false product

› No sediments of expensive products in the ball valve housing

image

Spring loaded ball sealing system

Approximately same torque at different temperatures This request can only be achieved by ball valves with a spring-loaded sealing system. Different heat expansion of metallic and synthetic material cause high torques by non spring-loaded sealing systems so that the valve can block and does not open or close anymore. Longer lifetime through spring- loaded sealing system. Spring-loaded cavity free ball valves achieve this improvement in a variety of processes. At abrasion, the spring-loaded sealing system guarantees a controlled compression of the ball sealing so that longer sealing life and leak-tightness can be realized

› Longer Lifetime

› Same torque at different temperatures

Our type selection

Dead-space-free ball valves from ATEC enable gases, liquids, emulsions and other materials to be processed without product deposits.

Pic

TYP_ECOLINE

» DN 15 - 50

» Cavity free or cavity reduced

» Standard Configuration

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