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.

Potter
Potter PS40-EX Explosion-Proof Supervisory Pressure Switch
Sale price$966.70
Regular price$1,160.04
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 85-104890-002 ADS N2 Driver Assembly, 4890 Cu. in. Capacity EMPTY. Refer to Flow Calcs for ADS Driver Quantity. Order Supervisory
Sale price$3,890.20
Regular price$4,668.24
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 85-104890-001 ADS N2 Driver Assembly, 4890 Cu. in. Capacity. Refer to Flow Calcs for ADS Driver Quantity. Order Supervisory Pressure
Sale price$3,700.90
Regular price$4,441.08
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 85-104070-002 ADS N2 Driver Assembly, 4070 Cu. in. Capacity EMPTY. Refer to Flow Calcs for ADS Driver Quantity. Order Supervisory
Sale price$3,218.30
Regular price$3,861.96
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 85-104070-001 ADS N2 Driver Assembly, 4070 Cu. in. Capacity. Refer to Flow Calcs for ADS Driver Quantity. Order Supervisory Pressure
Sale price$3,218.30
Regular price$3,861.96
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 85-102300-002 Siren Driver & ADS N2 Driver Assembly, 2300 Cu. in. Capacity EMPTY. Refer to Flow Calcs for ADS Driver Quantity. Order
Sale price$3,122.10
Regular price$3,746.52
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 85-102300-001 Siren Driver & ADS N2 Driver Assembly, 2300 Cu. in. Capacity. Refer to Flow Calcs for ADS Driver Quantity. Order
Sale price$3,122.10
Regular price$3,746.52
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 85-101040-002 EMPTY N2 Driver Assembly, 1040 Cu. in. Capacity for Nitrogen Siren 90-981574-001. Includes a Port for a Supervisory
Sale price$4,043.00
Regular price$4,851.60
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 85-101040-001 N2 Driver Assembly, 1040 Cu. in. Capacity for Nitrogen Siren 90-981574-001. Includes a Port for a Supervisory Pressure
Sale price$3,401.00
Regular price$4,081.20
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 81-486600-000 Pressure Switch, 3 Pole Single Throw Weather-proof
Sale price$2,245.25
Regular price$2,694.30
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 81-486536-000 Pressure Switch, 3 Pole Double Throw
Sale price$601.00
Regular price$721.20
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 81-207877-003 CO2 Manifold Y Fitting (Replaces 81-207877-000)
Sale price$1,177.85
Regular price$1,413.42
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 6-01-3508-0005 Pilot Manifold for 5 Selector Valves
Sale price$4,438.05
Regular price$5,325.66
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 6-01-3508-0004 Pilot Manifold for 4 Selector Valves
Sale price$3,695.85
Regular price$4,435.02
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 6-01-3508-0003 Pilot Manifold for 3 Selector Valves
Sale price$2,961.20
Regular price$3,553.44
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 6-01-3508-0002 Pilot Manifold for 2 Selector Valves
Sale price$2,308.95
Regular price$2,770.74
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 38-400020-100 2" BSP Manifold Coupling
Sale price$83.65
Regular price$100.38
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 38-400006-002 Manifold Safety Device, BSP 100 BAR
Sale price$237.15
Regular price$284.58
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 38-351140-011 8 Stub 2 Row 2" Manifold BSP 140L Cylinders with Check Valves
Sale price$927.85
Regular price$1,113.42
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 38-351140-010 6 Stub 2 Row 2" Manifold BSP 140L Cylinders with Check Valves
Sale price$782.05
Regular price$938.46
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 38-351140-009 4 Stub 2 Row 2" Manifold BSP 140L Cylinders with Check Valves
Sale price$673.70
Regular price$808.44
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 38-351140-008 6 Stub 1 Row 2" Manifold BSP 140L Cylinders with Check Valves
Sale price$892.00
Regular price$1,070.40
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 38-351140-007 5 Stub 1 Row 2" Manifold BSP 140L Cylinders with Check Valves
Sale price$817.85
Regular price$981.42
Not in stock - available on backorder - lead time on request
Kidde Fenwal
Kidde Fenwal 38-351140-006 4 Stub 1 Row 2" Manifold BSP 140L Cylinders with Check Valves
Sale price$732.60
Regular price$879.12
Not in stock - available on backorder - lead time on request