High Flow Automatic Cascading Sequence Valve · 6000 psi
$479.00
The Aqua Environment model 1085 valve is an open-shut valve having two control pressure ports. When pressure is applied to the top port, the valve opens. When pressure is applied to the side control port, the valve closes. When no pressure or equal pressures up to 6000 psi are applied to both control ports, the valve is held open by a bias spring. The standard valve has about 250 psi open bias however other springs can be provided for 0 to 400 psi bias. This item is not regularly stocked. Please contact Nuvair sales for estimated lead times.
SKU
1085
The Aqua Environment 1085 primary function is control of cascade systems used for such purposes as filling breathing air cylinders and vehicle CNG (compressed natural gas) tanks. Used between a compressor and a cascade system of storage tanks, the 1085 valve can be used to fill the highest pressure bank first, then the next highest, etc. without operator assistance. Here, the 1085 valve permits the compressor to operate at the pressure of the bank being filled rather than the maximum system pressure, as is the case with simple priority or back pressure valves. When used between the storage banks and tank being filled, the 1085 can deliver gas from the lowest pressure bank until equalized, then the next higher pressure bank, etc. without operator assistance. A one-inch thread section is provided on the end permitting a way to mount the valve. A one-inch hole is required in a mounting plate or panel.
The standard 1085 valves comes with a bias pressure of 250 psi. Contact the Nuvair sales team directly if a custom bias pressure is required. Additional bias pressures include:
- 80 psi (SKU 1085-80)
- 120 psi (SKU 1085-120)
- 400 psi (SKU 1085-400)
Typical Applications
- Sequence valve for automatic cascading
- High flow
Specifications
| SKU | 1085 |
| Type | Sequence Valve |
| Inlet Port Size | 1/4" MNPT |
| Outlet Port Size | 1/4" FNPT |
| Control Port Size | Close control: 1/4" FNPT Open control: 1/4" MNPT |
| Maximum Rated Pressure |
6000 psi |
| Maximum Differential Pressure |
6000 psi |
| Outlet Pressure Rating |
6000 psi |
| Maximum Control or Dome Pressure |
6000 psi |
| Body Material | Anodized aluminum |
| Flow Coefficient (Cv) | 0.8 (0.23" orifice) |
| Leakage | Bubble Tight |
| Open Bias Pressure | 7% greater pressure required on shut control relative to open control to actuate valve closed |
| Bias Pressure | 250 psi standard |
| Minimum Temperature |
–15°F (–26°C) |
| Internal Materials | Anodized aluminum Brass Stainless steel Steel |
| Body Material | Anodized aluminum |
| Seal Materials | Kel-F, Viton |
| Weight | 28.7 oz (815 g) |
| Overall Length | 9" (22.9 cm) |
| Round Diameter | 2.25" (5.7cm) |
| Repair Kit | 1085-20 |
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