gwr safety valve in stock

A 5 inch gauge GWR 14XX 0-4-2T, to Neville Evans" "Didcot" design, recently completed by an experienced model engineer. Run at his club for steam test and to check valve setting earlier in the year, it"s in excellent mechanical condition throughout.

Hand pump"s fine, the injectors are ineffective - we replaced the originals, but suspect the nice scale steam valves are too small for the job they"re intended to do - we"d recommend replacement.

It"s not always obvious in old black and white photos whether and when the GWR painted safety valve bonnets or not.  Some prototype locos are shown in the Russell book with polished brass bonnets, but later in their lives appeared to have painted ones.  Is there a rule, or did they make it up as they went along?  Specifically 14xx and 4575 locos classes would be nice to know about.  Presumably, during WW2 everything got painted over, but what happened afterward prior to nationalisation?

The Great Western Railway (GWR) 2251 Class was a class of 0-6-0 steam tender locomotive designed for medium-powered freight. They were introduced in 1930 as a replacement for the earlier Dean Goods 0-6-0s and built up to 1948. In service they were colloquially known simply as ‘Colletts’.

The GWR 5700 Class, or 57xx class, is a class of 0-6-0 pannier tank steam locomotive, built by the Great Western Railway (GWR) and British Railways (BR) between 1929 and 1950. With 863 built, they were the most prolific class of the GWR, and one of the most numerous classes of British steam locomotive.

They were distributed across most of the GWR network and, after nationalisation of the railways in 1948, across the Western Region of British Railways, and also other regions.

The early 0-6-0 tank engines were fitted with either saddle tanks (wrapped over the boiler) or side tanks (mounted at the side of the boiler and reaching down to the running platform). GWR first fitted pannier tanks (mounted on the side of the boiler but not reaching down to the running platform) in 1898 to nine 4-4-0 tank locomotives and, in 1901, to five 0-6-0T locomotives which were also fitted with Belpaire fireboxes.

George Churchward"s period as Chief Mechanical Engineer (1901–21) is well known for significant improvements in locomotive design and manufacture,GWR 1361 class of five 0-6-0 saddle tanks in 1910).

increasing boiler pressures, for example, the various rebuilds of the GWR 2721 class started at 150 lbf/in2 (1.03 MPa), increasing to 165 lbf/in2 (1.14 MPa), and then to 180 lbf/in2 (1.24 MPa)

With the completion of grouping in 1923, GWR"s collection of 0-6-0 tank locomotives was expanded with the stock from 28 acquired companies. The acquired tank locomotives came from different manufacturers, were a mixture of side, saddle and pannier, and varied widely by size and state of repair.

The first batch of 300 locomotives built between 1929 and 1931 included a medium height chimney, a mid-boiler dome, safety valve with cover, and an enclosed cab. They were similar in appearance to older 0-6-0 tank engines that had been rebuilt as pannier tanks, particularly the later rebuilds of the 2721 class. The 2721 class was itself a development of the 1854 class, which in turn was based on the 645 class.

Of the first batch of 300 locomotives, most were fitted with vacuum brakes and steam heating, and some of these were also fitted with GWR"s Automatic Train Control (ATC) safety system.

To work over the electrified underground lines, the 9700 Class locomotives had a special type of ATC equipment that lifted clear of the centre rail and had tripcock brake valves that matched the London Transport signalling system.

It was unusual, but not unprecedented, for GWR to use outside contractors to build locomotives (50 of the 200 strong 5600 class had been built by Armstrong Whitworth).Great Depression.

Fitted with polished brass safety valve covers. Includes the first No. 8700, which was later modified as the prototype for the 9700 class, and was renumbered No. 9700 in January 1934.

Built for working on London Transport lines. Built with new style cab, condensing equipment, Weir pump, modified ATC (to lift clear of central rail), and tripcock brake valves.

The first 5700s built were painted in the standard GWR livery of the time; mainly green above the running plate with the words "GREAT WESTERN" painted in yellow letters with red and black shadowing on the side of the pannier tanks, buffer beams painted red with the number shown in yellow letters with black shadowing, and the front of the smokebox and chimney were black.Kings and Castles, were painted black from 1942 to 1945.

The 5700s were used on GWR for various duties including shunting, pilot work, and light to medium goods. They were also used on branch, commuter and shorter mainline passenger trains.

The 5700s were the last steam locomotives used on GWR/Western region. The last working locomotives were allocated to Croes Newydd, and were working goods trains and shunting until November 1966.

There were numerous other classes of pannier tanks built by the GWR. The majority belonged to two "families" of "large" and "small" designs. Others included absorbed stock, more specialised types and conversions of tender locos. The two main groups were:

A "large" group originally featuring saddle tanks (or in a few cases side tanks), 4 ft 6 in driving wheels and double frames e.g. 1076 Class or inside frames GWR 645 Class, culminating in the 94xx.

A "small" group originally built at Wolverhampton Works with saddle tanks and driving wheels of 4 ft commencing with the GWR 850 Class and culminating in the BR 16xx

For example, within the "small" group, the GWR 5400 Class locomotives were derived from the William Dean-designed GWR 2021 Class (an enlargement of the 850 Class), with larger wheels for higher top speed and fitted with autotrain apparatus ("auto-fitted") for push-pull passenger work. The GWR 6400 Class were similar to the 5400 Class, also being auto-fitted, but having the same size wheels as the 5700. The GWR 7400 Class were very similar to the 6400 Class, but were not auto-fitted and had a higher boiler pressure.

Within the "large" group, the GWR 9400 Class was the post-war updated design of the 8750 variant of the 57xx: heavier and longer, but nominally no more powerful, using the same taper boiler as the GWR 2251 Class.

The first 5700 locomotive, No. 7711, underwent trials from January to April 1956, first running between Finchley Road and Baker Street. Modifications were needed to the cab for clearance and the tripcock brake valves after problems were found when running in reverse. Curtains were also fitted to the cab to reduce smoke and fumes in tunnels. In May, the 5700s became the standard for engineering trains on London Transport when they bought No. 7711 (for £3,160), decided to buy another (No. 5752), and planned to buy more over the coming years.

Between 1959 and 1965 the National Coal Board (NCB) bought five 5700s from BR for use at pits in South Wales, continuing a tradition of the GWR selling withdrawn pannier tank locomotives to the NCB.

One of the NCB 5700s, No. 7754, was the last in industrial service, and after working at various collieries was moved to Deep Duffryn Colliery at Mountain Ash in 1970, where an ex-GWR fitter kept it working until 1975 when a loose piston resulted in a blown cylinder cover. No. 7754 could still be seen on shed in 1980.National Museum Wales, who placed it on permanent loan to the Llangollen Railway. It is now owned by the Llangollen Railway Trust.

No. 9682 was withdrawn in 1965 and sent to Barry scrapyard. It was bought by the GWR Preservation Group in 1982 and, after overhaul, returned to traffic in 2000. It has since been loaned to various heritage railways, most recently the Chinnor and Princes Risborough Railway. It was taken out of service in 2009 and returned to Southall for overhaul.

Mainline Railways had OO gauge Class 5700 models in their catalogue in 1982–3, with models in GWR green and BR black.Bachmann Branchline has made OO gauge models of the 5700 and 8750 classes in various GWR and BR liveries, and also in the liveries of LT, NCB, Stephenson Clarke, and even GNSR (the fictional railway company in The Railway Children).Hornby produced various OO gauge models of the 8750 class in GWR and LT liveries.

Graham Farish has made British N gauge models of the 5700 and 8750 classes in various GWR and BR liveries.Dapol make British N gauge models of the 5700 and 8750 classes in various GWR and BR liveries.

Aster Hobbies produced a gauge 1 live steam 5700 Pannier tank in several GWR liverys, BR black, BR green and London Transport. Although the LT shade of red is totally wrong, using signal red instead of the Crimson red, however it is still eye catching in the bright red.

"GWR 5700/8750 Pannier tank O Gauge Model Loco kit". Just Like The Real Thing. Archived from the original on 12 April 2013. Retrieved 14 February 2015.

Of all the challenges you face keeping your customers’ plants operating at full capacity, safety and relief valves shouldn’t be one of them. NASVI’s job is to give you the confidence that your valve supply chain is rock solid regardless the pressure it’s under.

Three features distinguished Great Western Railway (GWR) locomotives from virtually all others. They were copper-capped chimneys, brass safety valve bonnets and pannier tanks which carried water in oblong carriers bolted to each side of the boiler. The reason for using pannier tanks in preference to the more widely employed saddle tanks was because on the GWR the use of square-topped Belpaire fireboxes made it difficult to accommodate saddle tanks. The use of panniers also allowed access to the inside valve gear and cylinders for inspection and maintenance.

Between 1959 and 1965 the National Coal Board (NCB) bought five class 5700 engines for use in pits in South Wales where they retained their BR numbers. The NCB locomotives did not receive maintenance to match GWR standards and were run into the ground, saving the cost of expensive overhauls. One of the NCB, 7754, was the last in industrial service, and after working at various collieries was moved to Deep Duffryn Colliery at Mountain Ash in 1970, where an ex-GWR fitter kept it working until 1975 when a loose piston resulted in a blown cylinder cover. 7754 could still be seen on shed in 1980. The NCB donated 7754 to the National Museum Wales, who placed it on permanent loan to the Llangollen Railway. It is now owned by the Llangollen Railway Trust.

The 5700s were the last steam locomotives used on GWR/Western region. The last working locomotives were allocated to Croes Newydd, and were working goods trains and shunting until November 1966. By the end of the steam era the record keeping of allocations and working of local steam locomotives was rather lax, and it was not unknown for locomotives to be used after being officially withdrawn. For many years Nos. 4646, 4696, and 9774 were thought to be the last ex-GWR locomotives to work on British Rail, but No. 9641 was also still in steam at Croes Newydd at the same time.

The 5700 class locomotives were the most numerous GWR class still in service at the end of 1965 with 27 still in service. The other two classes still operating at this time were the 1600 and 5600 classes which were also tank engines.

The 56xx Class for Train Simulator, developed by Peter Gillam, is available in three control modes and a variety of liveries, including Great Western Railway ‘Shirt Button’ and large logo variants, and pre and post 1956 BR liveries. The main features of the locomotive include cylinder cocks with prototypical operation and dynamic cylinder cock steam, ejector operated brake vacuum creation including leakage management, feathered safety valves, dynamic smoke effects, notched reverser, operational reverser locking lever, steam leak effects when stationary, mason"s valve and steam heating valve affect the heating system pressure gauge, custom head code lamps which can be set from the cab, operational water tank gauge, dual chime whistle with working in-cab chains and external steam blasts, plus operable front and rear windows, doors, seats and roof and window panels.

The locomotive is also Quick Drive compatible, giving you the freedom to drive the GWR 56xx Class on any Quick Drive enabled route for Train Simulator, such as those available through Steam. Also included are scenarios specifically for the ’Memories of Maerdy’ route (available separately and required to play these scenarios).

A recent flurry of purchases means that our stock of 45XX (flat tanks) /4575 Sloping tanks is now down to JUST FIVE MODELS, two in GWR livery and three in BR livery:

• 4505 Type 3.1: Square footplate, tall safety valve bonnet, no ATC, no outside steam pipes and no shutters, extended bunker with packed rear buffer beam. 0 gauge finescale.

• 4585Type 5: Sloping tanks, curved footplate, tall safety valve bonnet, ATC, outside steam pipes, shutters, long bunker and standard rear buffer beam. Scale 7.

• 4588 Type 5: Sloping tanks, curved footplate, ATC, short safety valve bonnet, shutters, long bunker and standard rear buffer beam. BR lined green later emblem on tank sides. O gauge finescale.

• 5514Type 5: BR lined green Lion-over-Wheel emblem: Sloping tanks, curved footplate, ATC, short safety valve bonnet, shutters, long bunker and standard rear buffer beam, Scale 7.

• 5551Type 5: BR lined green Totem emblem: Sloping tanks, curved footplate, ATC, short safety valve bonnet, shutters, long bunker and standard rear buffer beam, Scale 7.

8750s are available in GWR (green and black), BR mostly back feed engines and two top feed locomotives in the attractive BR lined black as used on empty stock working at Paddington.

We have a reasonable choice of GWR plain green engines, but choice of BR types is now more limited. Some BR plain black engines remain, but all the lined black models of 4702 have now been sold. A very limited choice of Scale 7 locomotives is now left.

All GWR plain green engines are now sold except one model in S7. All BR lined black engines are now sold. We have a few BR plain black engines and a good choice of BR lined green engines, including some in Scale 7. Many great Grange names are still available.

The bodies and chassis for these engines are now being built as the tenders have been completed and painted. There are still some 28XX – both BR and GWR square frame and curved frame – available, but there are very few 38XX locos left. So I you want a 38XX please let me know as soon as possible, especially GWR engines, as it may be necessary to reshuffle the build to accommodate this. There is very little time left to undertake this change.

We increased the Collett Hall build to 54 locomotives with a few left in both GWR and BR liveries. These are mainly 49XX and 69XX types (BR). The Modified Halls production has been increased from 15 to 24, so there are a few extra available. Half the Modified Halls will be fitted with mechanical lubricators which provide interesting extra detail. Witherslack Hall is proving to be the most popular locomotive name followed by Wolf Hall and Lady Margaret Hall.