Series 4 TriO Triple Offset

Default firesafe design and NACE versions available.

• ISO 5211 top plate for direct mounting of a wide range of actuators and gears
• Seal ring retainer, made of identical metal as the disc, clamps and combines the seal ring rigidly on the disc face into a robust, composite unit
• Standard hard faced Stellite seat integral to body
• Robust single piece stem
• Live-loaded stem seal system by a set of Belleville springs. Rocker shaped gland bridge compensates for uneven adjustment of gland bolts
• SS316+Nitriding bearings with graphite rings designed to take high radial and axial stem loads, and for ingress protection
• One piece body
• Replaceable laminated seal ring is located on the disc, precision machined for bi-directional sealing