Valves for standard applications
Normal plate valves are suitable for all piston working machines such as compressors and pumps. We manufacture these valves according to our own factory standards in milled, forged and cast versions. Adapted to the wide range of applications, we also continuously manufacture special designs of various kinds as well as their spare parts in any design and for all media. These valves are also available with effective damping springs on request and are therefore particularly suitable for installation in compressors whose speed is to be increased.
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Standard GN valves
Standard design for oil-lubricated compressors.
This long proven valve series is suitable for all reciprocating machines in lubricated design.
This design starts with single ring valves and features slotted valve plates for larger designs.
Depending on the application, the plate load is applied by shaped springs (annular springs, corrugated ring springs or layer springs) or cylindrical compression springs.Special features:
- Small slot widths in the valve seats with maximum utilisation of the valve diameters result in low plate strokes and thus short opening and closing times.
- Thin, low-mass valve and damper plates are guided by low-wear sliding elements.
- Always optimal adaptation to the desired operating condition
- Optional use of damping elements possible
- For capacity control of the compressor, available with lift-off gripper for valve plate control
- Valve and performance optimisation by computer simulation as a service for our customers.
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ER/ ES valves (ring valves)
Due to their special design, DIENES single ring valves are suitable for very high loads; the low-mass individual ring plates and the shock-absorbing spring assemblies result in low-noise operation.
Operational safety is further increased by the use of safety catchers, the outer edge of which is seated in the valve nest. This results in a relatively small seat thickness and a small damaging space. These advantages make the valves particularly suitable for installation in refrigerating machines and compressors with high speeds.
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Concentric valves
Darstellung StrömungsverlaufConcentric plate valves take into account the general development with regard to speed increase. By utilising the entire piston area, the largest possible free flow cross-section is achieved with a small stroke, a low gap speed and a favourable compressor delivery ratio. The valves are of a closed design towards the cylinder, which results in maximum operational reliability despite increased stress.
In air-cooled compressors, more intensive cooling is achieved by attaching cooling fins directly to the pressure valve body. The discharge valve plates consist without exception of individual rings which are loaded by impact- and noise-damping spring assemblies. Due to the more favourable flow compared to the off-centre single valves, the service life of the plate valves is extended.Special designs with an extremely small clearance are also available on request.
Large gap cross-sections and thus low air velocities, as well as small dead spaces and thus a good degree of filling, guarantee the best utilisation of space. This results in a long service life of the plate parts, safety due to the closed construction and simple design of the cylinder head.
These advantages make the valves particularly suitable for installation in high-speed compressors with a small cylinder diameter in relation to the piston stroke.
Concentric valves with cooling fins.
This compact valve design with thermodynamic advantages over other designs is recommended due to favourable temperature transfer from the suction to the discharge section as well as to the outside. This ensures a long valve service life.Special features:
- Large gap cross-sections and thus low air velocities
- Small damage spaces and thus good filling ratio
- Best space utilisation
- Long service life of the plate parts
- Safety due to closed design
- Simple design of the cylinder head
- For capacity control of the compressor available with lift-off gripper for valve plate control
- Valve and performance optimisation by computer simulation as a service for our customers.
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DL valves
The DIENES high-lift plate valves are working valves and prove themselves in the use of oil-free compressors, flushing pump valves, for large compressors in the chemical industry, in mining and so on with friction-free, plane-parallel three-point valve plate guidance.
Due to the frictionless valve plate guide, DIENES DL valves can be used in any axis position.Special features:
- with frictionless, plane-parallel three-point valve plate guide
- Variable number of damping elements according to the intended use
- Suitable for completely oil-free operation
- Can be used in any axial position
- For capacity control of the compressor, available with lift-off gripper for valve plate control
- Valve and performance optimisation by computer simulation as a service for our customers.
