Ansul INERGEN User Manual

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

Ansul INERGEN Specifications

General

Agent	INERGEN
Components	Nitrogen, Argon, Carbon Dioxide
Agent Composition	52% Nitrogen, 40% Argon, 8% Carbon Dioxide
Storage	High-pressure cylinders
Cylinder Material	Steel
Application	Total flooding fire suppression
Design Concentration	34.2% - 50% (depending on fuel type)
Storage Pressure	3000 psi (207 bar)
Environmental Impact	Zero ozone depletion potential, no global warming potential
Safety	Safe for use in occupied spaces when design concentration is maintained
Extinguishing Mechanism	Oxygen reduction to below combustion level
Approvals	UL, FM
Cylinder Sizes	Various sizes
Discharge Time	Typically less than 60 seconds
Typical Applications	Data centers, telecommunications, museums, archives