• Eliminates broken valve stems caused by over-opening or over-closing
  • Field-adjustable for any number of turns within the range of each model
  • Constructed of heavy-duty, non-corrosive Dupont Delrin polymer, providing high-impact resistance even in cold climates
  • Double O-ring seals keep out water and dirt
  • 3rd-party tested to over 1 million revolutions
  • Provided with stainless steel hardware
  • Also available with Wall Bracket for mounting to tank walls, and in Valve Boxes for buried service.

Click HERE for PDF of Exploded Views

Ordering Instructions

  1. Specify direction of open (open left or open right)
  2. Model required (available in 57, 275 or 870 turns)
  3. Extension stem required
    1. Length required
    2. Round (maximum OD of 1.75″), 1-1/4″ square, or round x square stem, click HEREfor details).
    3. Carbon steel or stainless steel
  4. Housing Adapter – Floor Box style
    1. Cast iron housing (unsealed)
    2. Carbon steel or stainless steel (sealed)
SQUARE EXTENSION STEM ROUND EXTENSION STEM
Open Left Open Right Open Left Open Right
Model Trumbull Item No. Trumbull Item No. Trumbull Item No. Trumbull Item No.
57T 367-9394 367-9393 367-9404 367-9403
275T 367-9396 367-9394 367-9406 367-9405
870T 367-9400 367-9399 367-9410 367-9409