Product Overview

ManualsBrandsAsco RedHat ManualsPilot Operated Solenoid Valves2" Threaded Normally Closed 2-Way Pilot Operated Gas Shutoff Valve (120V)

373

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2/2

SERIES

S261

COMBUSTION

Features

•2-way normally closed operation

•Die-cast aluminum bodies

•Zero differential piloted diaphragm

•For on-off control of fuel gas in commercial and

industrial gas burners

•Valves provided with 1/8" NPT upstream and

downstream pipe taps with plug for routine testing

•Broad ambient temperature range -20˚F up to 170˚F

Valve Parts in Contact with Fluids

Body Aluminum

Seals and Disc NBR

Core Tube 305 Stainless Steel

Core and Plugnut 430F Stainless Steel

Core Guide CA

Springs 302F Stainless Steel

Shading Coil Copper

Pipe Plug Zinc-Plated Steel

Standard Coil

and Class of

Insulation

Watt Rating and

Power Consumption

Ambient

Temp.°F

Spare Coil

Family

AC Explosionproof

Watts

Holding

Inrush AC

F 10.5 21 69 -20 to 167 (-29 to 75) 529027

F 15.4 27 162 -20 to 170 (-29 to 77) 529029

F 28.2 55 451 -20 to 170 (-29 to 77) 529031

Standard Voltages: 120 volts, AC 60 Hz

Optional Voltages: 24, 240 volts AC, 60 Hz

S261 catalog number includes codification for voltage. However voltage must be

specified when ordering spare coil.

Electrical

Construction

^ #

Fluid

Fuel Gas

Solenoid Enclosures

Standard: Type 1 General Purpose Junction Box

Housing with two 7/8" knock-outs.

Valve Response Time

Opening Time: Less than 1 second

Closing Time: Less than 1 second

Close-off Pressure

50 psi (3.5 bar) maximum

Approvals

UL listed to standard 429 “Electrically Operated Valves,”

Guide YIOZ, File MP932 Safety Valves.

FM Approved to Class 7400 “Liquid and Gas Safety

Shutoff Valves”

CSA Certified to Automatic Gas Valves ANSI Z21.21,

CSA 6.5 C/I (meets standard C22.2 No. 139

“Electrically Operated Valves”), File 112872

ASCO™ Gas Shutoff Valves

Pilot Operated | 3/8" - 3" NPT

Summary of content (4 pages)

PAGE 1
2/2 SERIES S261 ASCO™ Gas Shutoff Valves Pilot Operated | 3/8" - 3" NPT Features ^ # • 2-way normally closed operation • Die-cast aluminum bodies • Zero differential piloted diaphragm • For on-off control of fuel gas in commercial and industrial gas burners • Valves provided with 1/8" NPT upstream and downstream pipe taps with plug for routine testing • Broad ambient temperature range -20˚F up to 170˚F Fluid Fuel Gas NC Construction Solenoid Enclosures Valve Parts in Contact with Fluids Body Standar
PAGE 2
/2 SERIES S261 Specifications English units (Metric) Gas Operating Pressure Max. Capacity ¨ Differential psi (bar) Fluid Pipe Orifice Flow Temp. Size Size Factor ˚F (˚C) in in (mm) Cv (Kv) Btu/hr. Min. Max. COMBUSTION (Fuel Gas) - NORMALLY CLOSED Catalog Number 24/60 120/60 240/60 Const. Ref. UL 3/8" 3/4" (19) 4.2 (3.6) 225,000 0 30 (2.1) 140 (60) S261SH01N3CG5 S261SH02N3CG5 S261SH04N3CG5 1 1/2" 3/4" (19) 5.4 (4.7) 291,200 0 30 (2.
PAGE 3
2/2 SERIES S261 Dimensions inches (mm) Const. Ref. 3 N B W J Ø .87 [22.2] KNOCKOUTS FOR CONDUIT CONNECTION BOTH SIDES M PIPE TAPS ANPT 1/8" PLUG 4 PLACES T P H K PIPE SIZE ANPT BOTH ENDS (SEE TABLE) R A L FLOW Const. Ref. 4 N W B J M T Ø .87 [22.2] KNOCKOUTS FOR CONDUIT CONNECTION BOTH SIDES PIPE TAPS ANPT 1/8" PLUG 4 PLACES H COMBUSTION P K PIPE SIZE ANPT BOTH ENDS (SEE TABLE) R L A FLOW Visit our website at ASCO.
PAGE 4
2/2 SERIES S261 Dimensions inches (mm) Const. Ref. 5 N W B J T M Ø .87 [22.2] KNOCKOUTS FOR CONDUIT CONNECTION BOTH SIDES PIPE TAPS ANPT 1/8" PLUG 4 PLACES P K H PIPE SIZE ANPT (SEE TABLE) R L A FLOW COMBUSTION 376 Visit our website at ASCO.