The mechanical parts that complete a fixed suppression system beyond the cylinder, valve and nozzle: manifolds that combine multiple cylinders into one discharge path, actuator assemblies that convert the release signal into mechanical action, pressure switches that confirm discharge back to the panel, and the associated fittings.
Every one of these is matched to the system design. Pressure switches in particular are the panel's proof that discharge actually occurred, so a substitution changes what the system reports. Order from the system drawings.

Kidde Fenwal
Kidde Fenwal 82-878751-000 Lever and Pressure Operated Control Head
Sale price$701.00
Regular price$841.20
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 82-878759-000 Recharge Adapter, 2-1/2 Valve
Sale price$5,009.90
Regular price$6,011.88
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal WK-196656-800 Bolt-Hex, 7/8 X 5 Hex, for 4 CL600 Flanges
Sale price$27.15
Regular price$32.58
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 81-803242-000 Safety Outlet, 3/4" NPT 2400-2800 psi (165-193 Bars)
Sale price$204.70
Regular price$245.64
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 82-878750-000 Pressure Operated Control Head, Stackable
Sale price$436.70
Regular price$524.04
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 82-878757-000 Recharge Adapter, 1-1/2 ECS, FE13 Valve
Sale price$1,268.10
Regular price$1,521.72
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 81-152901-125 Nut-Hex, 1-1/8, for 4 CL900 Flanges
Sale price$122.05
Regular price$146.46
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 81-890208-000 CO2 Stop Valve, 4 Flanged Brass (Order Flanges Separately)
Sale price$36,064.60
Regular price$43,277.52
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 81-802537-000 Tee, 1/8 with Nuts
Sale price$93.90
Regular price$112.68
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 81-994706-625 Kit, 5/8" Type I Valve Rebuild 81 903684 000 Safety Disc (Red) and Washer WK 295500 000 Nut Safety Disc WK 800760 000 Main
Sale price$516.85
Regular price$620.22
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 81-196901-125 Stud, 1-1/8" Fully Threaded, for 4 CL900 Flanges
Sale price$122.05
Regular price$146.46
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 90-300008-001 Valve Marine, Cross-over 3-way, 4" Size
Sale price$32,433.80
Regular price$38,920.56
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 82-878754-000 Hydrostatic Test Adapter - 1-1/2" ECS Valve
Sale price$885.25
Regular price$1,062.30
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 81-870023-000 CO2 Stop Valve, 1/2
Sale price$2,044.60
Regular price$2,453.52
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 90-121100-000 Kit, ADS 5/8" I Valve Re Build Includes 1 of Each of the Following: 81 902048 000 Safety Disc (White) and Washer WK 923066
Sale price$397.45
Regular price$476.94
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 81-934809-000 Stainless Steel Lock-Out Valve, 4"
Sale price$66,892.70
Regular price$80,271.24
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 83-843792-000 Double Tee Pulley for CO2 Systems, or for WHDR/IND Systems Using the XV Control Head for Cabling 2 Remote Manual Releases
Sale price$58.05
Regular price$69.66
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 81-870049-000 CO2 Stop Valve, 2
Sale price$5,102.45
Regular price$6,122.94
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 81-872442-000 Discharge Head, Grooved Nut (for ADS and CO2)
Sale price$494.65
Regular price$593.58
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 85-220031-003 3 Way Directional Valve, 2 NPT, Carbon Steel, UL Listed for ECS 500 ADS Fluoro K, ECS 360 3M NOVEC 1230, ECS 500 3M NOVEC
Sale price$17,715.60
Regular price$21,258.72
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 85-220031-002 3 Way Directional Valve, 1 1/2 NPT, Carbon Steel, UL Listed for ECS 500 ADS Fluoro K, ECS 360 3M NOVEC 1230, ECS 500 3M
Sale price$13,773.40
Regular price$16,528.08
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 81-872335-000 Pneumatic Control Head, 3 5 Seconds
Sale price$1,568.25
Regular price$1,881.90
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 85-170200-000 Kit, 3" ECS, ADS Valve Re Build. Includes 1 of Each of the Following: 06 220371 001 Disc Burst Assembly 06 118265 001
Sale price$898.05
Regular price$1,077.66
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 81-681016-900 Flange-Weld, 4" CL900
Sale price$2,356.20
Regular price$2,827.44
Not in stock - available on backorder - lead time on request