Hydarulics and Pneumatics 1

[kothavale]

I am building 200 HP Power pack/2000 Litres & want to use cartridge valve for handling high flows.

Could you advise me what is the best material for making manifold block for cartridge valves.

Are the cartridge valves of different makes like Moog, Vickers and Rexroth are interchangeable.

Thanks
Kothavale

 

[atad]

Material for the Manifold block is largely dependent on the pressures and therefore the stresses the manifold will be subjected too.

The manufacturer of the cartridge valves will give you advice on this.

However here is a material that was developed for pressure manifold type duties;

Sonderbaustahl HYT 60

Yield figures : 305N/mm² sizes upto 250mm
290N/mm² sizes 250 to 400mm

Tensile figures : 550-680N/mm² sizes upto 250mm
550-680N/mm² sizes 250 to 400mm.

 

[EdDanzer]

Manifolds with pressures under, 3,000 psi can be aluminum, under, 5,000 psi can be cast iron, under, 10,000 psi should be steel. The material choice may be driven by size also.
You may need to check threaded areas for adequate strength of the material.
Some cartridges are interchangeable, but you must check closely to know for sure.

 

[NJG]

As a quick rule of thumb, I used simple thin/thick cylinder calcs to give me a feel for the minimum wall thicknesses/material yield around cartridges, based on the internal pressure. Also depends how many cartridges, pitch from cartridge to cartridge and size restraints of block required

You should also find the minimum number of thread and yield of the material (both cartridge and block)to prevent the cartridges stripping out of the manifold block.

There are DIN standard interface sections, and standard port sizes Metric/BSP/SAE, which Eaton/Vickers, Moog and Rexroth use. These guys ar normally quite open with this data.