Hydraulics & Pneumatics Limited manufactured a wide range of industrial and marine hydraulic and pneumatic equipment, and valves for liquids and gases.

The valves, known as 'Fullway' valves were available in a wide range of sizes to suit many applications. They could also be remotely controlled and so were suitable for automatic systems.

They had many advantages over the competition. They offered a smooth full-way passage that avoided the possibility of turbulence, and could operate without leakage, in either direction of flow. They required no lubrication, which could contaminate the media, had no wearing surfaces, so they were reliable for long periods, and needed little attention. The smaller valves could operate at pressures of up to 5,000p.s.i. They were suitable for viscous or gritty liquids, or high vacuum, and could work over the wide temperature range of -80oF to +400oF.


An SFFK ball valve.

 SFFK ball valves were fitted with a spherical plug shut-off unit and provided a straight through circular passage with excellent flow characteristics.

Turbulence was eliminated because the medium passed, as if through a smooth pipe, and a leak-tight seal was given in either direction of flow.

The valve was fitted with 90o rotational stops and consisted of a forged steel body with an anodised aluminium alloy spherical plug, and Perbunan seals.
BK ball valves, like the SFFK valves, had the same excellent flow characteristics and freedom from turbulence. Sealing of the spherical plug was ensured by sealing rings under pressure, which gave a leak-tight seal in either direction of flow.

The body and connections were of rust-proofed steel, the spherical plug was made of brass, and the seals were made of Perbunan.


A BK ball valve.


A low pressure NK ball valve.

 The NK valve was fitted with a spherical plug shut off unit offering excellent flow characteristics and freedom from turbulence. Sealing was ensured by an annular sealing ring whose contact pressure increased as the operating pressure rose. This provided a tight seal in both directions of flow. The valve operated over a rotation of 90o.

The body and interior parts were made of brass and the seals were of Perbunan or Polyamide.
Like the other valves in the range the MK was fitted with a spherical plug shut off unit and so had the same flow characteristics and freedom from turbulence as the other models. Sealing of the spherical plug was ensured by sealing rings under pressure, which gave a leak-tight seal in either direction of flow.

The spherical plug had a hard chromium plated surface and the seals were made of Perbunan, Polyamide or Teflon.


A screwed ball -valve type MK.


A flanged ball-valve type KFK.

 The valve had the same excellent flow and operating characteristics as the other models.

The KFK valve was shorter, and mounted between two large pipe flanges. It could handle very high pressures of up to 4,250p.s.i.

The internal pipe diameter was between ½ inch and 2 inches. The body was made of steel and the plug of chromed steel or chromed cast iron. The seals were of Perbunan, Polyamide or Teflon.
BKM valves were 3 or 4 way valves which provided a tight seal in all directions of flow. The operating pressure was up to 4,250p.s.i. depending upon size, but they were not suitable for use with gases or vacuum. They had a forged steel, black anodised body, a bronze annular piston and stainless steel ball-plug. The seal rings were made of Teflon.


A BKM Multi-Way valve.


An MW3 3 Way Valve.

 Fullway 3 way valves were fitted with a spherical plug shut off and control unit, and had 'T' or 'L' ports. They were ideal for use with oil or water up to a pressure of 3,550p.s.i.

The smaller sizes had a wrought steel body, whereas the larger models had a
malleable cast iron body. The interior parts were made of chromium plated brass and the seals were made of Perbunan or Polyamide.
H & P produced their own high pressure seals up to a diameter of 6 inches. They were originally developed for the aircraft industry and worked without backing rings up to a pressure of 5,000p.s.i. They were also suitable for use in hydraulic systems.

Many of the rings were made of P.T.F.E. although they were available in a range of materials.


The inner workings of a Fullway multi-way valve.


A power operated remote control for Fullway valves.

 The H & P remote control was designed to operate the whole range of Fullway valves. It consisted of a double-acting hydraulic cylinder that was attached to the pipework by two 'U' bolts.

The distance between the valve and the 'U' bolts could be adjusted to endure that the valve fully opened and closed.
Several different types of control valve were produced to operate the remote controls. The one opposite is a simple hand-operated valve.
More complex or automatic control systems for the remote controls could use solenoid valves. The photograph shows a double H & P solenoid operated valve.
Speed controls, such as the one opposite were produced to control the time taken for the remote control to open or close a valve.

  Large diameter Fullway valves in use in a tanker wagon loading
  station.		  
Several remote controls in
operation.
The Fullway valve system was extremely sophisticated, and complex systems could easily be developed. Large installations could be remotely controlled from a central point, an important feature that found uses in many industries including shipping.
            
Read about H & P's
marine products

I would like to thank Derek Beddows for his help in producing this section.
Return to the Turner
Manufacturing Co.