Page 489 - Industrial Ancillaries 2020 Catalogue (Sterling)

Process Valves 12
Watson Smith VP10 Proportional Pressure Control Valve
BSPP Thread (ISO G)
Speci cations
Medium: Compressed air ltered to 5 μm, oil-free, dry
Flow Direction: Determined
Mounting: Preferred vertical mounting
Operating Pressure: At least 0.7 bar above maximum required output
pressure range
Fluid Temperature: -10°C up to maximum +180°C
Ambient Temperature: -40°C to +85°C. Consult our Sales Team for use below +2°C
Response Time: < 2 bar: less than 0.5 seconds > 2 bar: 2 seconds for 10 to 90% step change
Total Error: ± 0.5% of span
(typical, independent error includes the combined effect of non-linearity, hysteresis, deadzone and repeatability)
Output Signal: 0.2 bar to 1.0 bar, 0.2 bar to 2.0 bar,
0.2 bar to 4.0 bar (2 wire version),
0.2 bar to 6 bar, 0.2 bar to 8 bar (3 wire version)
Air Consumption: < 4 bar: 0.85 l/min typical at 50% signal >4 bar: 1.75 l/min typical at 50% signal
Temperature Effect: Average 0.1% of span/°C for span and zero over operating range Supply Sensitivity: < 0.075% span output change per % supply pressure change Failure Mode: Signal falls to bleed pressure when electrical supply fails
Materials
Body: Passivated zinc die-casting, epoxy painted Diaphragms: Nitrile
Internal: Beryllium copper/brass
Flapper Nozzle and Supply Valve: Stainless steel / nylon
Electrical Information
Electromagnetic Compatibility: This is a passive electromagnetic instrument and is unaffected by interfering high frequency signals
Electrical Signal: Two wire version 4 mA to 20 mA or 0 V to 10 V
Three wire version requires 12 V DC to 24 V DC supply
Connections: 30 mm square connector DIN 43650 provided, mountable in four directions (alternative connections available)
170
Features
• Robust proportional I/P and E/P converters • Suitable for a wide range of applications
• High accuracy
• High ow versions available
• IP 65 protection in normal operation
Part No. Control Signal Output Pressure bar
Flow l/min Weight kg Price
VP1001BJ100A00 0 - 10 V 0.2 - 1
300 0.823 £726.30
VP1001BJ400A00 VP1002BJ400A00 VP1004BJ400A00 VP1006BJ401A00 VP1008BJ401A00
4-20mA 0.2-1 300 4-20mA 0.2-2 300 4-20mA 0.2-4 300 4-20mA 0.2-6 300 4-20mA 0.2-8 300
0.823 £515.16 0.823 £605.23 0.823 £726.30 0.823 £576.96 0.823 £692.37
VP1002BJ100A00 0 - 10 V 0.2 - 2
300 0.823 £605.23
VP1004BJ100A00 0 - 10 V 0.2 - 4
300 0.823 £1,419.80
VP1006BJ101A00 0 - 10 V 0.2 - 6
300 0.823 £657.54
VP1008BJ101A00 0 - 10 V 0.2 - 8
300 0.823 £713.49
489
Process Valves