Size range(s): NPS 1/4 – 4 (DN 8 – 100)
Pressure rating: ASME Classes 1690 – 4500
Standard connections : Buttweld , Socket Weld
Features and benefits:
- Designed for quick and easy maintenance – one step removal of all working parts including packing.
- All pressure containing parts within one body-bonnet forging – no joints to leak or welds to cut for servicing.
- Non rotating stem allows a non-spinning disc, ensures low torque and prevents torsional damage of the packing.
- Fully enclosed, lubricated stem drive system with needle bearings ensures low operating torque.
- Solid CoCr alloy disc, seat ring and backseat provide excellent long service life even in severe services.
- Backseat bevel on the stem, not on the disc, satisfies both API-600 and API-602 specifications.
- Optional live-loading: keeps packing tight for long periods of time without maintenance.
- Optional double packing and leak-off.
