DECLUTCH GEAR BOX

DECLUTCH GEAR BOX

DECLUTCH GEAR BOX
DECLUTCH GEAR BOX
Product Information
Product Name - DECLUTCH GEAR BOX
MODEL NST-PGB
Product Category - · Nordsteam Steam and Flow Control Group · Gear Boxes
Product Brand - Nordsteam

Product Features
DECLUTCH GEAR BOX

Declutch gearbox is specially designed for butterfly valves, ball valves,and plug valves,etc. together with pneumatic actuators. This device allows manuel operation during installation and system testing when air resource is not loaded.It can be mounted directly on most of the popular rack&pinion style pneumatic actuators.

  • ISO5211 Compliant upper and lower mounting pattems.
  • ISO 5211 Compliant upper male square drive provide direct mount to ISO compliant actuators  without adapters and female″double square″ lower drive provide direct mount to ISO       Compliant valves.
  • Dual position limiting stops
  • External lubricating fitting
  • Roller thrust bearings on worm gear for improving efficiency
SPARE PARTS
NO PART NAME STANDARD MATERIAL
PGB30-PGB550 PGB850-PGB3200 PGBA30-PGBA130
1 COVER Cast Iron DUCTİLE IRON ALUMINIUM ALLOY
2 BODY Cast Iron DUCTİLE IRON ALUMINIUM ALLOY
3 DRIVE GEAR DUCTILE IRON
4 GEAR COVER Cast Iron DUCTILE IRON ALUMINIUM ALLOY
5 UPPER MALE SQUARE STEM CARBON STEEL
6 HANDWHEEL SHAFT  CARBON STEEL WITH CHROME PLATED
7 HANDWHEEL  PLATED CARBON STEEL
8 POSITION LOCK ASSY  PLATED CARBON STEEL
9 POSİTİON LEVER ASSY  PLATED CARBON STEEL
10 COVER BOLTS CARBON STEEL WITH ZINC PLATED
11 LIMITING STOPS

PERFORMANCE DATA TABLE OF NST-PGB SERIES ALUMINUM ALLOY BODY
MODEL GEAR RATIO MECHANICAL EFFICIENCY (%) MAX.OUTPUT TORQUE (Nm) WEIGHT (KGS) DOUBLE ACTING ACTUATOR MODEL
NST-PGB30 40:1 8.6 300 2,7 NST-DA63 / NST-DA115
NST-PGN36 38:1 8.6 360 4,3 NST-DA63 / NST-DA115
NST-PGB80 36:1 8.5 810 6,8 NST-DA100 / NST-DA145
NST-PGB130 50:1 8.5 1310 13,5 NST-DA160 / NST-DA190
NTS-PGB280 55:1 19.0 2800 25,8 NST-DA210 / NST-DA240
NST-PGN550 52:1 19.0  5500 40,3 NST-DA270 / ......