Drum valve, 2-pieces sturdy stem packed type design for corrosive and toxic gases – D154S
High pressure bulk valve - 2-piece Stem design - spring loaded gland packing - soft seat
- 2-piece sturdy stem design in order to reduce particle generation.
- Non rotating lower spindle for increasing tightness during life time.
- No particle shedding threading in gas wetted areas.
- Self-adjusting compression of V-packings using disc springs, allowing a service temperature range from -40° to +65°C.
- Locking nut having left-hand thread that secures the valve mechanism, even if excessive torques are applied.
- O-rings fitted behind V-packings guarantee a secondary sealing, and they avoid the risk of humidity coming in contact with the gas wetted areas.
- Soft seat induces low operating torque.
- Soft seat is fixed with a special screw and its design improves the valve’s robustness against over torques.
|Connections||According (inter-)national standards and customer’s specifications|
|Working pressure||200 bar|
|Nominal flow rate||1 – D154S / TDB – D154S-KEY|
|Temperature range||-20 to +65 °c|
|Body materials||Stainless steel 1.4435 (AISI 316L)|
|Leak rate||<1.10-5 m bar L/s|
|Seat orifice size||6 Mm|
|Handwheel type||Manual or Key operated|
|Marking||π 0029 (according to TPED), manufacturing date, 3 stars, valve part number, valve inlet, valve outlet|
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