System Components
UL EX-4510 12-1-01 Page 1-11
Description
The corner pulley is required on an INERGEN™ system
whenever a mechanical release pull cable run involves
a change in direction. Corner pulleys are installed as part
of the cable housing (pipe or conduit) and provide 90°
direction changes with minimal force loss and no induced
kinking.
Two types of corner pulleys are available. One is made of
die cast aluminum, has a ball bearing roller, and uses com-
pression fittings for 1/2 in. EMT connections. The second
type is made of forged brass and is threaded for 3/8 in.
NPT pipe. Two styles of forged brass corner pulleys are
available: one with a brass wheel and one with a nylon
wheel. Both styles of brass pulleys are watertight. The
brass wheel corner pulley is designed for location inside or
outside the protected space. The nylon wheel corner pulley
is designed for location only outside the hazard space.
Thread adaptors are available to simplify the installation.
ANSUL and INERGEN are trademarks of Ansul Incorporated or its affiliates.
Corner Pulley
Thread Size/
Component
Material
Type
Approvals
Corner
Body:
1/2 in.
UL Listed
Pulley
Aluminum
EMT
(EX-4510)
Roller:
Stainless Steel
Corner
Body:
Brass
3/8 in.
UL Listed
Pulley
Wheel: Brass
NPT
(EX-4510)
Corner
Body:
Brass
3/8 in.
UL Listed
Pulley
Wheel: Nylon
NPT
(EX-4510)
Shipping
Assembly
Part No.
Description
423250
Aluminum corner pulley
842678
Brass corner pulley (nylon wheel)
845515
Brass corner pulley (brass wheel)
840696
Thread adaptor – (brass pulley only)
ANSUL
®
®
ANSUL INCORPORATED, ONE STANTON STREET, MARINETTE, WI 54143-2542 715-735-7411
Form No. F-2001259 © 2001 Ansul Incorporated Litho in U.S.A.
Forged Brass Watertight Corner Pulley, Sheave
Type, Part No. 842678 and 845515
Corner Pulley For 1/2’’ EMT Aluminum,
Part No. 423250
4 3/16 IN.
(10.6 cm)
2 11/16 IN.
(1.7 cm)
3/8 IN. NPT
1 5/32 IN.
(2.9 cm)
LEAD-CLAD
COPPER
GASKET
3/8 IN. PIPE
REMOVABLE
FACE FOR
RUNNING CABLE
ADAPTOR
00690
1 1/8 IN.
(2.8 cm)
GLAND
BODY
COVER
SELF-TAPPING SCREW
BALL BEARING SHEAVE
2 7/8 IN.
(7.3 cm)
2 7/8 IN.
(7.3 cm)
001815
A
A