ตัวแทนจำหน่ายวาล์ว Fisher 66 Series Direct-Operated Regulators and Vacuum Service Equipment ในประเทศไทย
Fisher™ 66 Series direct-operated pressure-reducing regulators are widely used in burner control, tank blanketing systems and other applications where precise control of low-pressure industrial gases is needed, while 66 Series direct-operated vacuum service equipment comes in both vacuum regulator and vacuum breaker constructions. These products differ in pressure capabilities and construction (Figures 1 through 4).
Features
Sensitive Response to Pressure Changes
• Minimum lockup at high as well as low inlet pressures is provided on all regulators by a balancing diaphragm that reduces unbalanced forces acting on valve plug.
Seat Protection without Sacrifice in Shutoff Capability
• Retainer (Figure 2) of standard Type 66, 66Z or 66ZZ valve plug assembly closes against the orifice before assembly can over travel and thus over-compress O-ring.
Tank Blanketing Capability
• Maximum sensitivity and low outlet pressure accuracy make this an ideal regulator for tank blanketing (padding) applications.
Accuracy
• Pitot tube of Type 66, 66Z, or 66ZZ standard cast iron regulator registers body outlet pressure from point of highest velocity, creating a dynamic boost (Figure 5 or 6) that helps provide a more nearly constant downstream pressure and rapid adjustment to small demand changes.
Application Flexibility
• Steel and stainless steel bodies are available for increased resistance to piping stresses or whenever dictated by local codes. External registration is standard or optional depending on construction for wherever a remote control line is required.
Part Number
• 0B019727052
• 1E611427022
• 1D892527022
• 1D892627022
• 1D892727012
• 1D892827032
• 1D892927032
• 1D765727032
• 1D765827032
• 1D962627032
• 1N506427142
• 1D892527022
• 1E991427012
• 1J196527012
• 1H387327012
• 1N152427012
• 1D479927032
• 1D527327022
• 1D893027022
• 1D893127012
• 1D892827032
• 1D893227032
• 1D893327032
• 1D962627032
• 1E204427032
• 1N506527142
• 1D893027022
• 1E991527012
• 1J196627012
• 1K384427012
• 1D527527022
• 1D527627032
• 1D892627022
• 1D893427022
• 1D893227032
• 1D893527032
• 1D893627032
• 1D771227032
• 1D771327032
• 1E204527032
• 1D892627022
• 1E937227012
• 1J196727012
• 1E937227012
• 1K418127012
• 1J823827012
Specifications
Body Sizes and End Connection Styles
• NPS 2, 3 or 4 / DN 50, 80 or 100
• Cast Iron Body: NPT or CL125 FF
• Steel Body: NPT, CL150 RF, CL150 FF, CL300 RF
Emergency Inlet Pressure
• Type 66, 66Z, 66ZZ or 66 Series Vacuum Breakers: 25 psig / 1,7 bar positive pressure
• 66 Series Vacuum Regulators: 8 psig or 16.3-inches of mercury / 0,55 bar differential vacuum
Maximum Inlet Pressure to Avoid Internal Parts Damage
• Type 66: 10 psig / 0,69 bar
• Type 66Z: 5 psig / 0,34 bar
• Type 66ZZ: 2 psig / 0,14 bar
Recommended Inlet Pressure
• Type 66, 66Z or 66 Series Vacuum Breakers: 5 psig / 0.34 bar positive pressure
• Type 66Z: 2 psig / 0,14 bar
• 66 Series Vacuum Regulator: 6-in w.c. or 0.4-in of mercury / 15 mbar differential vacuum
Emergency Outlet (Casing) Pressure
• Type 66, 66Z or 66ZZ: 8 psig / 0,55 bar positive pressure
• 66 Series VR: 14.7 psi or 29.9-in of mercury / 1.01 bar differential vac
• 66 Series VB: 8 psi or 16.3-in of mercury / 0.55 bar differential vac
Maximum Safe Pressure to Avoid Internal Parts Damage
• Type 66, 66Z or 66ZZ: 1 psig / 0,07 bar differential above outlet pressure setting
• 66 Series Vacuum Regulator: No more than 1 psig / 0,07 bar differential change from spring setting
Pressure Registration
Type 66, 66Z or 66ZZ
• Cast Iron Body: Internal (standard) or External
• Steel Body: External (standard) or Internal
• 66 Series Vacuum Regulators or Breakers: External
Temperature Capabilities
• NBR: -40° to 180°F / -40° to 82°C
• FKM: 0° to 350°F / -18° to 177°C
• EPDM: -40° to 275°F / -40° to 135°C
Approximate Weights
• NPS 2 (DN 50) NPT: 50 Pounds / 23 kg
• NPS 3 (DN 80) Body: 100 Pounds / 45 kg
• NPS 4 (DN 100) Body: 155 Pounds / 70 kg
Additional Technical Data
• For additional technical information, contact your local Sales Office or refer to technical documentation.
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