Audited Supplier
3A certified Donjoy Double Seat Mixproof Valves Manifold for Food Beverage Processing
Technical specification:
| Size | DN40-DN150 ,1.5"- 6" |
| Working temperature | 14°F to 266°F (-10 to 130°C), 284°F (140°C) for short time sterilisation. |
| Max. Working Pressure | 145psi (10bar) |
| Min. working pressure | Absolute vacuum |
| Compressed air pressure | 5.5 bar to 7 bar |
| Parts in contact with the medium | AISI 316L |
| Other stainless steel parts | AISI 304 |
| Internal surface finish | Ra 32μin (0.8μm) as default, Ra 16μin (0.4μm) as best. |
| Seat Material | EPDM, FDA177.2600 , (Default) FPM , FDA177.2600 (Option) |
| Pneumatic Actuator Types | Normally Closed (NC) - Air to open and spring to close; Normally Open (NO) - Air to close and spring to open; Air to Air (AA) - Air to open, air to close. |
| Actuator air pressure | 79-102 psi (5.5 bar-7 bar) |
| Units for intelligent control and indication | C-top control IL-top control (Positioner) Electric connection AS-I bus connection |
| End Connections | butt-welded, tri-clamp |
| Packaging details | standard export package or customized |
3A Hygienic Double-Seat Mixing Proof Valve for Food Beverage Processing
Design Features
Default with normally closed pneumatic actuator
Compact and robust design, forged spherical bodies
Pressure balanced design
One-piece Body & Clamped Body to choose from
A wide selection of different body combinations.
Easy disassembly by releasing the clamp
Cleaning/Sterilization Parts for Options
100% hydraulic tested / 100% inspected
Operations
Actuators
Stainless steel actuator
Units for intelligent control and indication:
C-top control
IL-top control (Positioner)
Electric connection
AS-I bus connection
Connection:
Clamped, welded and threaded, flanged etc.
Packaging Details:
Bubble pack for each valve.
Outside packing is by carton or plywood case.
OPERATING PRINCIPLES
-Lift type mixing proof valve is remotely operated by compressed air. It is normally closed before running.
-The mixing proof valve is constructed with two independent plugs, which will form a leakage chamber to atmosphere under normal working status. When occasional failure causes leakage happen, medium will flow into the chamber and be diacharged at the outlet port.
-The leakage chamber is closed when the valve is operating, the medium can flow through one pipeline to another. This valve can be clean in place. Many options of CIP and SIP combination are available to users.(Refer to cleaning sterilization function options)
-Clean system can clean the upper, lower stem and leakage chamber, which ensure the valve to be high hygienic. Effectively cleanig system makes the fluid that special for (CIP) clean in place directly wash all the inside calve body, it takes shorter time than common cleaning system.
-Another beneficial of the high cleaning system is that the lift type mixing proof valve can be applied to aseptic processing. If user's steam into CIP pipeline, the system will constitute a shield that can isolate air.
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