➤ Body Type → Wafer, Lug, Double Flanged, Buttweld

➤ Body → CS, SS

➤ Disc → WCB, CF8M, CF8

➤ Stem → 316 SS, 410 SS, 17-4 PH, XM-19

➤ Seat → 13% Chrome, Stellite Gr.21

➤ Seal Ring → 316 SS+Graphite, 316 SS+PTFE,
Inconel 625+Graphite, 316 SS Solid Metal Seat

➤ Size Range → Series 4A, 4B, 4C, 4W - 3" to 48“ (DN 80 to 1200),
Series 4D, 4E, 4F, 4Y, 4G, 4H, 4J, 4K - 3" to 24“ (DN 80 to 600)

➤ Pressure Rating → Series 4A, 4B, 4C, 4W - Class 150,
Series 4D, 4E, 4F, 4Y - Class 300,
Series 4G, 4H, 4J, 4K - Class 600

➤ Leakage Class → Class VI

➤ Design Standard → API 609 Category B, BS EN 593

➤ Testing Standard → API 598, BS EN 12266-1

✔︎ 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.