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Manufacturers of Authentic Reproductions of Historical Railway Components in 3½", 5", 7¼" & 10¼" Gauge Specialising in Vacuum Brakes & Trackwork
Upcoming Events
PNP Railways will be the
7¼" Gauge Society Annual Gathering at
The City of Newport Model Engineering Society
​Friday 18th & Saturday 19th September 2026
Select - Collection at the 7¼" Gauge AGM when placing your order.
Please note: PNP Railways will be attending Friday and Saturday only.
All pre-orders must be collected before 4.00 pm on Saturday 19th September.
Vacuum Release Valve
Product Details
Brand:
PNP Railways
The valve will allow atmospheric air pressure into the vacuum reservoir to release the brakes on a detached vehicle. The brakes will come off, as the air pressure equalizes each side of the diaphragm.
Before this device is used it should be established that the vehicle in question can not roll out of contro
Thread size = 1/4" NPT
Overall Length = 1 3/4"
Vacuum Limiting Valve
Vacuum Limiting Valve
Sets the maximum vacuum for reliable brake release
£48.00
Vacuum Brake Refurbishment Kit
Vacuum Brake Refurbishment Kit
Essential service parts to restore vacuum brake performance.
£24.80
Vacuum Brake Actuation Kits
Vacuum Brake Actuation Kits
This is the main component of a vacuum brake system. It generates the braking force when the vacuum is applied.
£48.95
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