Staitechonline at www.staitech.com · Email: [email protected]· Tel: +44(0) 1453 882736 ZUERCHER BR Series LOW PRESSURE IN-LINE & ANGLE-PATTERN TANK PRESSURE REDUCING REGULATORS Pressure/Vacuum Rating Max inlet pressure: 16 Barg Max back-pressure: 2 Barg Vacuum tight. Leak Tight to EN 12266-1:2003 Leakage rate A For T = -10°C to +150°C: Leakage rate A For T = -20°C to -10°C: Leakage rate C Pressure Control Parameters Max controllable inlet pressure: 6 Barg (Higher pressures upon request) Pressure Control Range Parameters Spring: -200 to 1000mbar Pilot: -200 to 2000mbar Temperature Range -20°C to +160°C (Higher temp on request) Seat Diameters Ø 4mm, 6mm, 10mm, 14mm, 21mm, 32mm Flow Control Range Direct -Acting Spring: 16 to 1600 NM³/Hr Equilibrated Spring: 30 to 1600 NM³/Hr Piloted Diaphragm: On request. Flanged Connection Options EN 1092-1 PN10/PN16 Flanges EN 1092-1 Grooved DIN 2512 PN10/PN16 ASME Class 150/300 Flanges Materials Body and Trim: AISI 316L or Alloy C22® Upper Body: AISI 304 Diaphragm: PTFE, Viton, or EPDM O-Rings: FFKM, Viton, or EPDM Options Adjusted and Sealed Ø63 Diameter St St Gauge Rain Hood Available Certification ATEX Ex II 2 GDc IIC Certified Option EN10204:2004 3.1 Material Traceability Cert of Conformance to TA Luft, PED, FDA Functionality and Performance Cert. Each valve individually tested and certified ZURCHER MODEL BR Tank Blanketing Regulator: Spring loaded low pressure reducer for process gases.
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ZUERCHER BR Series LOW PRESSURE IN-LINE & ANGLE-PATTERN TANK PRESSURE REDUCING REGULATORS
Pressure/Vacuum Rating Max inlet pressure: 16 Barg Max back-pressure: 2 Barg Vacuum tight. Leak Tight to EN 12266-1:2003 Leakage rate A For T = -10°C to +150°C: Leakage rate A For T = -20°C to -10°C: Leakage rate C
Pressure Control Parameters Max controllable inlet pressure: 6 Barg (Higher pressures upon request)
Pressure Control Range Parameters Spring: -200 to 1000mbar Pilot: -200 to 2000mbar
Temperature Range -20°C to +160°C (Higher temp on request)
Seat Diameters Ø 4mm, 6mm, 10mm, 14mm, 21mm, 32mm
Flow Control Range Direct -Acting Spring: 16 to 1600 NM³/Hr Equilibrated Spring: 30 to 1600 NM³/Hr Piloted Diaphragm: On request.
Flanged Connection Options EN 1092-1 PN10/PN16 Flanges EN 1092-1 Grooved DIN 2512 PN10/PN16 ASME Class 150/300 Flanges
Materials Body and Trim: AISI 316L or Alloy C22® Upper Body: AISI 304 Diaphragm: PTFE, Viton, or EPDM O-Rings: FFKM, Viton, or EPDM
Options Adjusted and Sealed Ø63 Diameter St St Gauge Rain Hood
Available Certification
ATEX Ex II 2 GDc IIC Certified Option
EN10204:2004 3.1 Material Traceability
Cert of Conformance to TA Luft, PED, FDA
Functionality and Performance Cert. Each valve individually tested and certified
ZURCHER MODEL BR Tank Blanketing Regulator: Spring loaded low pressure reducer for process gases.
ZUERCHER BR Series LOW PRESSURE IN-LINE & ANGLE-PATTERN TANK PRESSURE REDUCING REGULATORS
ZUERCHER bench test every regulator for actual pressure and flow performance prior to dispatch and the test
certs are a standard part of the documentation pack supplied with every ZUERCHER regulator
ZUERCHER TEST BENCH FOR TANK BLANKETING REGULATORS
Reducing Regulator Function Spring-loaded pressure reducing regulators are self-acting regulators designed to keep process pressure “B” at a constant level.
The nominal pressure is set by means of the setscrew, located at the spring housing.
When at rest, the regulator remains in the open position. As inlet pressure “A” rises, pressure is released through the open valve seat “F” to the process side of the valve and through the internal feedback bore “E” underneath the diaphragm.
When the diaphragm force “C” exceeds the spring force “D”, as process pressure “B” increases. The diaphragm is lifted and the valve seat “F” closes.
When process pressure “B” drops below the preadjusted nominal pressure, the spring force “D” presses the diaphragm downwards, so that the valve seat “F” opens and admits gas until pressure equalization is reached again.
ZUERCHER BR Series LOW PRESSURE IN-LINE & ANGLE-PATTERN TANK PRESSURE REDUCING REGULATORS
Angle-Pattern Threaded Option
Angle Pattern Thread options: DN25 BSPF/NPTF.
Pilot Operated Option
Pilot operated – In line Pattern Control Pressures up to 2000mbar Size range flanged: DN15 to DN100 Flange options: ANSI 150lbs/300lbs DIN PN16. Thread options: DN25 BSPF/NPTF.