RB 4700 Commercial & Industrial Regulator

Transcription

1 RB 4700 Commercial & Inustrial Regulator The RB 4700 regulator is esigne for use in inustrial an istribution applications such as istrict station an heating plants, an for inustrial customers. DESCRIPTION The RB 4700 is a pilot-operate regulator with an optional integrate safety shut-off evice. Its pilot system provies a fast an accurate response to flow rate variation. Pilot supply is protecte by a separate fine filter. An automatically loae pressure feeer allows accurate control at high inlet pressure. The optional built-in shut-off valve offers protection against over-pressure or over- an uner-pressure. Its bypass system makes it easy to relatch the shut-off valve. KEY BENEFITS» High flow capacity» Accurate control» w ifferential» Easy maintenance» Rugge construction for urability» w noise» Travel inicator» Approve by the major European gas istribution companies Technical Features Inlet pressure 25 bar Outlet pressure 5 mbar 13 bar Differential pressure 0.5 bar mini Accuracy Up to AC1 / up to SG 2.5 Operating temperature -20 C to +60 C Ambient temperature -30 C to +60 C (boy material) Acceptable gases Natural gas, town gas, propane, butane, air, nitrogen or any non-corrosive gas Safety evices Optional built-in safety shut-off valve: Over-pressure shut-off (OPSO) an uner-pressure shut-off (UPSO) Options Noise reuction Travel stop ( 25 only) Operational Diagram Accuracy class (AC), lock-up pressure class (SG) an lock-up pressure zone:» mbar: AC 2.5 / SG 5» 100 mbar: AC 1 / SG 2.5 The typical lock-up pressure zone is: Qmin, Pu = 2.5 Qmax, Pu 100 Sizes & Connections Sizes 25, 40, 50, 80, 100 Boy lengths EN 334 face-to-face recommene imensions ( 16-25; 50) Boy rating an Flanges Steel: 16, 20, 25, 50 Cast iron: 16, 20, 25 Materials Boy Hea Internal parts & Pilot Seals Diaphragm Spheroial graphite cast iron EN 1563 grae EN-GJS Steel EN grae G 20 Mn 5 Presse steel / UNI EN10025 Steel, stainless steel, brass an aluminium Nitrile rubber Synthetic rubber with fabric reinforcement Inlet Pressure Outlet Pressure Feeing Pressure Motorization Pressure SPECIFICATIONS

2 PILOT SYSTEM RB 4700 regulators are equippe with a TF 500 series pilot system, as follows: TF 5 1 X Options 1 w pressure: mbar 2 Meium pressure: bar 3 High pressure: bar Spring characteristics: : wire iameter De: external iameter Stanar conitions: - Absolute pressure of bar - Temperature of 15 C Correction factor for non-natural gas applications: The flow rates are inicate for a 0.6 specific gravity gas. To etermine the volumetric flow rate for gases other than natural gas, multiply or calculate the values in the capacity tables using the sizing equations with a correction factor. The table below lists correction factors for some common gases: Gas type Specific Correction gravity factor Air Butane Carbon ioxie (ry) Carbon monoxie (ry) Natural gas Nitrogen Propane Propane-Air mix Specific gravity or relative ensity (air = 1, non-imensional value) Use the following formula to calculate the correction factor for gases not liste above. In the formula, is the specific gravity of the gas. Correction factor = where: 0.6 : height : no. of spires Q = volumetric flow rate in m 3 /h at stanar conitions P u = absolute inlet pressure in bar P = absolute outlet pressure in bar Sin = angle in egrees Outlet Pressure Range Pilot Type Spring Coe De mbar bar TF TF TF TF TF TF TF TF TF TF The TF 500 series pilot system inclues a built-in pre-regulator which is loae by the oulet pressure to provie the pilot with a feeing pressure 500 mbar above outlet pressure. The pre-regulator is fitte with a separate filter. Remote Control The TF 512-PL series pilot system is esigne for applications where the regulator set point must be controlle remotely, such as leak management systems, process control applications, etc. In the TF 512-PL series pilot system, the pilot setting element, which is a spring in conventional pilots, is replace by an external loaing pressure. See separate Technical Information Bulletin FLOW CAPACITY Sizing Equation Accessories A separate AP series accelerator may be ae to the TF 500 series pilot system. This accelaror is recommene in case of on /off loas in orer to limit the pressure surge when the gas eman stops. The AP series accelerators can be set in the following ranges:» AP/1 w pressure: mbar» AP/2 Meium pressure: bar» AP/3 High pressure: bar For a 0.6 specific gravity gas, the wie-open orifice flow (Q) may be calculate using the following equations:» Sub-critical flow behaviour: Q = K G v P (P u - P ) where (P u - P ) 0.5 P u or Q = K G P u sin [ K1 V (P u - P) ] 2 P u where (P u - P ) 0.5 P u» Critical flow behaviour: Q = K G P u / 2 where (P u - P ) > 0.5 P u Flow Coefficient K G K G Basic K G With SSV an Silencer K

3 Operational Diagram SSV 8600 SAFETY SHUT-OFF VALVE Accuracy class (AG)» w pressure: AG 10» Meium pressure: AG 2.5» High pressure: AG 1 Minimum ifference between regulator an SSV settings ( Pw):» 15%, with a minimum ifference of 10 mbar for UPSO an 20 mbar for OPSO. Type Designation an Options SSV 86 X X Versions 1 ø ø 150/TR 3 ø 90 4 ø 90/TR 1 OPSO 2 OPSO + UPSO The RB 4700 Series regulators can be fitte with the SSV 8600 safety shutoff valve for overpressure (OPSO) or combine uner-an-over pressure (UPSO/OPSO) protection. The SSV trip pressure can easily be ajuste inepenently of regulator set point. The following accessories make the SSV 8600 easier to use:» Manual shut-off button for emergency closing» Easily accessible lever for relatching the valve» Built-in bypass for balancing pressure before relatching the safety shut-off valve. Use the relatching lever to operate the bypass. Remote control accessories (optional):» Valve position inicator (inuctive etector or Ree switch)» Remote triggering by explosion-proof solenoi valve Inlet Pressure SET RANGE Over-Pressure Shut-Off Springs (OPSO) Spring Coe De Colour 8611/ /21 (Ø 150/TR) 8631/ / 8642 (Ø 90/TR) Yellow mbar Re mbar White mbar Blue mbar bar Orange mbar bar bar Brown mbar bar bar bar Green mbar bar bar bar Black mbar bar bar bar Grey mbar bar bar bar Yellow bar bar Re bar bar Uner-Pressure Shut-Off Springs (UPSO) Spring Coe Outlet Pressure De Colour 8611/ /21 (Ø 150/TR) Spring characteristics: : wire iameter De: external iameter 8631/ / 8642 (Ø 90/TR) White 5-18 mbar Blue mbar Orange mbar bar bar bar Brown mbar bar bar bar Green mbar bar bar bar : height : no. of spires bar min p = 1 bar

4 SSV 8500 SAFETY SHUT-OFF VALVE Accuracy class (AG)» w pressure: AG 10» Meium pressure: AG 2.5» High pressure: AG 1 Minimum ifference between regulator an SSV settings ( Pw):» 10 mbar Ps 30 mbar: OPSO Ps + 20 mbar UPSO Ps - 10 mbar» 30 mbar < Ps 100 mbar: OPSO Ps + 20 mbar UPSO Ps - 20 mbar» 100 mbar < Ps 300 mbar: OPSO Ps + 40 mbar UPSO Ps - 40 mbar» Ps > 300 mbar: OPSO 120% Ps UPSO 80% Ps The RB 4700 Series regulators (*) can be fitte with the SSV 8500 safety shut-off valve for overpressure (OPSO) or combine uner-an-over pressure (UPSO/OPSO) protection. The SSV trip pressure can easily be ajuste inepenently of the regulator set point. The closing plug of the SSV controller is use as pulling tool to relatch the valve. A built-in bypass, for balancing pressure before relatching the safety shut-off valve, is operate by pulling the valve stem. Type Designation an Options SSV 85 X X Versions 1 Ø Ø 90 Operational Diagram (*) except for size 100. Inlet Pressure Outlet Pressure Ps: Set point outlet pressure OPSO: Over-pressure shut-off UPSO: Uner-pressure shut-off 3 Ø 90/TR 1 OPSO 2 OPSO + UPSO Maximum Inlet Pressure For higher inlet pressure, the SSV 8500 is fitte with heavier closing spring which gives a positive lock-up even in case of high pressure ifferential across the valve. The following table inicates the maximum inlet pressure for both options Stanar 6 bar 6 bar 6 bar 6 bar Heavy uty 16 bar 16 bar 16 bar 6 bar SET RANGE Over Pressure Shut-off Springs (OPSO) Spring Coe De 8511/ / /132 (Ø 90 TR) mbar bar mbar bar mbar bar mbar bar bar bar bar bar bar Uner Pressure Shut-off Springs (UPSO) Spring characteristics: : wire iameter De: external iameter : height : no. of spires Spring Coe De 8511/ / /132 (Ø 90 TR) mbar bar mbar bar bar mbar bar bar mbar bar bar bar bar bar

5 REGULATOR - Overall Dimensions Actuator A B C B P Weight (kg) D 16/20/ /20/ with TF with TF 512 or TF A B C Vent an Sensing Lines» Pilot sensing line: Rp 1/4 with compression fitting for 10 mm pipe Rp 1/4 with compression fitting for 12 mm pipe Rp 3/8 with compression fitting for 10 mm pipe P SAFETY SHUT-OFF VALVE - Overall Dimensions SSV 8600 E C E C Aitional weight Actuator Ø 150 Actuator Ø 90 (kg) RB 4700 without SSV Vent an Sensing Lines» SSV sensing line: Rp 1/4 with compression fitting for 10 mm pipe» SSV vent line: Rp 1/4 C SSV 8500 E Aitional weight (kg) Vent an Sensing Lines» SSV sensing line: Rp 1/4 with compression fitting for 10 mm pipe» SSV vent line: Rp 1/8 E Regulator RB 4700 an SSV 8600 D B TYPE DESIGNATION AND OPTIONS To specify the version of the RB 4000 regulator to be orere, select the options an relevant coes from the table below. C R B E 4 7 X X X X Options 1 Pilot TF Pilot TF Pilot TF Without safety evice 1 Over-pressure shut-off 2 Over- an uner-pressure shut-off 25 Orifice (Ø 30 mm) 40 Orifice (Ø 38 mm) 50 Orifice (Ø 48 mm) 80 Orifice (Ø 78 mm) 100 Orifice (Ø 98 mm) S With built-in silencer Regulator RB 4700 an SSV 8500 A Example: Moel RBE S is a regulator with a TF 511 pilot, an over-pressure shut-off an silencer.

6 INSTALLATION 1 Upstream valve 2 Differential pressure gauge 3 Strainer / Filter 4 Upstream pressure gauge 5 Regulator 6 Pilot 7 Pressure gauge 8 Monitor regulator 9 Shut-off valve sensing line 10 Regulator process line 11 Pilot sensing line 12 Downstream pressure gauge 13 Discharge vent pipe 14 Downstream valve 15 Pilot process line (TF 511 only) 17 Motorization line 18 Accelerator 19 Safety relief valve (optional) 20 Monitor pilot 23 Shut-off valve e Typical installation with safety shut-off valve e u xu + 2xu 7xu Typical installation with safety shut-off valve, monitor an active regulators 9 u xu + 2xu 7xu Information to be specifie when orering:» Regulator type coe» SSV type» Minimum an maximum inlet pressures» Outlet pressure range setting» Outlet pressure setting» Connection type» Options OPSO setting* UPSO setting* * (if requeste) Our company is the worl s leaing provier of smart metering, ata collection an utility software systems, with over 8,000 utilities worlwie relying on our technology to optimize the elivery an use of energy an water. To realize your smarter energy an water future, start here: For more information, contact your local sales representative or agency: ITRON GmbH Hareckstraße 2 D Karlsruhe Germany Phone: Fax: While Itron strives to make the content of its marketing materials as timely an accurate as possible, Itron makes no claims, promises, or guarantees about the accuracy, completeness, or aequacy of, an expressly isclaims liability for errors an omissions in, such materials. No warranty of any kin, implie, expresse, or statutory, incluing but not limite to the warranties of non-infringement of thir party rights, title, merchantability, an fitness for a particular purpose, is given with respect to the content of these marketing materials. Copyright 2011, Itron. All rights reserve. GA-RB-4700-EN-V