Japan, Ross Asia
Ross Asia No.2151B2002(21 series) Inline poppet valve with extended temperature range

Made in Japan
 Manufacturer : Ross Asia
 Model : No.2151B2002(21series)
Features
- 1/4″ to 1 1/2″ port sizes
- 2, 3, or 4-way valve
- Hot and cold applications
- Easily adapted for vacuum service
- Extreme temperature range options up to 300°F (150°C) on pressure control models Down to -40°F (-40°C) with Buna-N seals
Specifications
| Explanation | 21 Series Cryogenic 2/2 Single Pilot Valve, Normally Closed, 1/4″ NPT (In-Out) | 
| Valve type | Direction control | 
| Series | 21 | 
| Actuation | Air pressure | 
| Function | 2/2 Single pilot | 
| Initial position | Normally closed | 
| Return | Spring | 
| Thread type | NPT | 
| Inlet pipe size | 1/4″ | 
| Outlet pipe size | 1/4″ | 
| Construction | Poppet | 
| Attachment | In line | 
| Pilot type | External | 
| Size | 03-Aug | 
| Average resume | 2.3 | 
| Duty class | Continuous work | 
| Fluid medium | Filtered air | 
| Working pressure | 30-150 psig (2-10 bar) | 
| Minimum pilot supply | Above inlet pressure | 
| Length | 3.56 inches (90mm) | 
| Width | 3.11 inches (79mm) | 
| Height | 3.71 inches (94mm) | 
| Weight | 1.8 lbs (0.8 kg) | 
| Valve body material | Cast aluminum | 
| Poppet/spool material | Aluminum and stainless steel | 
| Seal material | Fluorocarbon | 
| Application | Low temperature | 
| Ambient temperature | -40 to 120F (-40 to 50C) | 
| Medium temperature | -40 to 175F (-40 to 80C) | 












