在Hauhinco传统与创新是互不分离的。Hauhinco是1908年在德国斯普罗克霍威尔，鲁尔矿业的摇篮成立的。至今，Hauhinco仍旧牢记自己的由来。再过去的100余年间，公司经历了很多组织结构和市场环境的变化，并仍旧不断地推陈出新，为市场带来创新性的产品。这些经验使得Hauhinco在市场中独树一帜。
Hauhinco是一家拥有悠久历史的成功的中型公司。如今，Hauhinco是世界领先的水液压应用领域供应商。我们的高压柱塞泵，阀以及系统被广泛地应用于世界各地的井下煤矿以及工业领域。而我们的员工正是我们成功的关键。
中文 (中国)
The valve piston (2) guided within the valve body (1) is pressed into the valve seat (3) by the force of the spring (4). The control chamber (5) is connected to the B-channel via the control channels (6) within the valve piston (2). The hydraulic pressure supplied at the B-channel with the valve closed is thus also acting on the control surface (A2). This pressure keeps the valve closed and shuts off the direction of fl ow from the B- to the A-channel. Conversely, the non-return valve opens when the hydraulic pressure at the A-channel exceeds the hydraulic pressure at the B-channel and the spring force (4). In order to reach the initial opening of the closed valve, the hydraulic pressure within the A-channel must be greater by the factor of the control ratio A2/A1. The response behaviour of the valve is dampened by the throttling pin.
Control surfaces, hydraulic forces
A channel: Area A1, open valve
B channel: Area A2, close valve
Control surface (5) = A2 > A1
General | |
| Weight | see Order information |
| Installation position | any |
| Ambient temperature | -10 to 50°C (hydraulic fluids, heed standard requirements) |
| Material Valve parts Material Seals | Stainless steel NBR, PTFE, PUR |
Hydraulic | |
| Hydraulic pressure connector A, B | ≤ 500 bar, höhere Druckstufen auf Anfrage |
| Direction of flow | A->B |
| Control ratio | A1≤A2, A1, A2 - Control surfaces |
| Pressure fluid - Medium - Temperature range - Medium - Quality - min. filter fineness connection | Water, HFA 5 to 40°C see Hauhinco media requirement, water, HFA Filter fineness 100μm |
| Pressure fluid - Medium - Temperature range - Medium - Quality - Viscosity | Mineral oil HLP according to DIN51624-2 5 to 50°C Cleanliness class -/19/16 according to ISO 4406 0,6 bis 100 mm²/s |
Ranges of application | |
| Control ratio A2/A1 ≥ 1,2 | Standard applications, e.g. backstop. Special valve features are a delayed response due to the area ratio, an increased resistance to wear due to the large sealing surface. |
| Control ratio A2/A1 ≤ 1,1 | Special applications, e.g. for a quick response with a low pressure difference between A- and B-channel, such as a pressure relief function, pre-loading valve. |
Included in the scope of supply | |
| Mounting screws for the valves |
| Description | Nominal size | Weight | Max. pressure | Basic position | Voltage | Note | Article number |
|---|---|---|---|---|---|---|---|
| Non-return valve C-RV DN16 | DN16 | 5,0kg | 500 | - | - | Control ratio [A2/A1]: 1,20 | 6260144 |
| Non-return valve C-RV DN25 | DN25 | 10,5kg | 500 | - | - | Control ratio [A2/A1]: 1,25 | 6271847 |
| Non-return valve C-RV DN25 | DN25 | 8,5kg | 500 | - | - | Control ratio [A2/A1]: 1,10 | 6259421 |
| Non-return valve C-RV DN40 | DN40 | 21,0kg | 500 | - | - | Control ratio [A2/A1]: 1,10 | 6154182 |
| Non-return valve C-RV DN65 | DN65 | 112,0kg | 500 | - | - | Control ratio [A2/A1]: 1,20 | 6600030 |
| Non-return valve C-RV DN80 | DN80 | 179,0kg | 500 | - | - | Control ratio [A2/A1]: 1,35 | 6260152 |
| Non-return valve C-RV DN100 | DN100 | 448,0kg | 500 | - | - | Control ratio [A2/A1]: 1,30 | 6169171 |
