Humphrey handbediende ventielen: Tactiele Betrouwbaarheid
Humphrey manually operated valves and mechanical switches are designed for environments where reliability is a must and electricity is not always the best option. By combining the legendary diaphragm-poppet technology with various operating mechanisms, this series offers an indestructible solution for manual process control. Inacom supplies these classics to machine building and the process industry.
Why choose diaphragm-poppet operation?
With manual or mechanical operation, valves are often exposed to varying forces and contaminated environments. Humphrey manually operated valves use a design without sliding seals. For more information on this specific design, see the manufacturer's website Humphrey Products.
- Insensitive to contamination: The poppet design is "self-cleaning". Dirt does not get the chance to damage the seal, because it is blown away with every switching cycle.
- No lubrication required: Ideal for locations where maintenance is difficult. The valves work completely dry.
- Direct response: There is no stiction. Even after a long period of inactivity, Humphrey manually operated valves respond immediately at the first touch.
Various operating options
The strength of this series lies in the huge variety of actuators. Engineers can choose from different methods to activate the valve:
- Manual: Push buttons (palm buttons), toggle switches and hand levers for ergonomic operation.
- Foot-operated: Robust foot pedals for applications where the hands must stay free.
- Mechanical: Roller cams, cam operation and plungers for integration into moving machine parts.
Technical specifications manual & mechanical
| Feature | 125 series | 250 series | 500 series |
|---|
| Port size | 1/8" PIPE | 1/4" PIPE | 1/2" PIPE |
| Flow (Cv) | 0.22 Cv | 0.50 Cv | 2.5 Cv |
| Operation | Push button, roller, lever | Button, foot, cam | Lever, cam |
| Pressure range | Vacuum to 8.6 bar | Vacuum to 8.6 bar | Vacuum to 8.6 bar |
| Housing | Zinc / aluminium | Zinc / aluminium | Brass |
Applications of Humphrey manually operated valves
In modern industry these valves are often used as emergency stop circuits, simple clamping devices or reliable limit switches in dusty sawmills and metal workshops. Because Humphrey manually operated valves are so robust, they often outlast the machine in which they are mounted.
At Inacom we are happy to help you select the right operating method. Looking for a valve that gives a signal at a specific stroke? Then a roller lever version is ideal. Want a simple on/off switch for an operator? Then we recommend the ergonomic push buttons. This creates a safe and efficient working environment.