Traveling Nut Actuator

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Traveling Nut Manual Actuators provide characterized closure which allows the valve to slowly close during the last half of travel to reduce pipeline surges. They are designed to specifically match the torque characteristics of Val-Matic Ener•G® Ball Valves and Val-Matic American-BFV® Butterfly Valves.

Product Overview

  • Quarter turn manual actuators per AWWA C504 and C507 requirements for plant, buried and submerged service
  • Lab Tested - 10,000 cycles per AWWA Standards
  • Available in 8 sizes to handle valve torques up to 180,000 ft-lbs
  • Manufactured under a certified ISO 9001 quality system

Features

  • Available with Exclusive externally adjustable stops
  • End of travel stops rated to 450 ft-lbs
  • Characterized closure to increase surge protection
  • O-ring sealed housing to prevent leakage
  • External indication of valve position
  • Stainless steel external stop bolts
  • Integral non-metallic bearing - to eliminate valve shaft side loading
  • Centralizing ACME thread for high efficiency
  • Anti-friction bearings used on all input shafts
  • Levers - Ductile iron for superior strength
  • Self-locking mechanisim to maintain valve position
  • Mounting holes for field mounting and multiple 90° orientations, utilizing multiple keyways for precise positioning
  • Easily adapts to Handwheel, Chainwheel or 2" Nut operation
  • Spur gears available on larger sizes for ease of operation
  • Motor mounting option - FA10 flange & keyway provided

Specifications

Valve Size Product Description Drawing Number
Butterfly 3" - 90" LSA Traveling Nut Actuator VM-LSA-S
Ball 6" - 48" LSA Traveling Nut Actuator VM-LSA-S

Materials of Construction

Valve Size Product Description Drawing Number
3" - 24" LSA Traveling Nut Actuator - external stops VM-LS1A-M
42" LSA Traveling Nut Actuator - external stops VM-LS-5.2A-M
30" - 90" LSA Traveling Nut Actuator - external stops VM-LS5A-M

Dimensions

Valve Size Product Description Drawing Number
3" - 24" LSA Traveling Nut Actuator - external stops VM-LS1A
30" - 36" LSA Traveling Nut Actuator - external stops VM-LS-5A
42" - 90" LSA Traveling Nut Actuator - external stops VM-LS-5.2A

Manuals

Valve Size Product Description Drawing Number
4" - 48" Ball Valve with LSA Actuator - external stops BV-OM1
3" - 24" Butterfly Valve with LSA Actuator - external stops BFV-OM3
30" - 108" Butterfly Valve with LSA Actuator - external stops BFV-OM4

Technical Data

Product Description Drawing Number
LS Traveling Nut Actuator Mounting Positions VM-2000-LSA
Manual Valve Actuators White Paper