Reval 182 Pressure Regulators

Transcription

1 Reval 182 ressure Regulators

2 ressure regulators Reval 182 Reval 182 is pilot-controlled pressure regulator for medium and low pressure applications. Reval 182 is normally a fail to close regulator and specificaly will close under the following conditions: - breakage of main diaphragm; - lack of feeding to the pilot loop. This regulator is suitable for use with previously filtered, non-corrosive gases. Modular Design The modular design of pressure regulator Reval 182 allows retrofiting of an emergency monitor M/182 or slam shut valve and/or silencer on the same body. The Reval 182 regulator is truly a top entry design which allows easy maintenance and/or retrofiting options in the field. The unique dynamic balancing system ensures an outstanding turn down ratio combined with an extreme accurate outlet pressure control. Reval 182 Fig. 1 Fig. 2 Reval DB DEIGNED WITH YOUR NEED IN MIND - ompact Design - Outstanding Turn Down Ratio - Easy Maintenance - High Accuracy - Top Entry - Low Operation cost - Low Noise - Very LOW OERATING p

3 A A ILENER DB/182 Reval 182 Whenever certain noise limit is desired, the silencer allows you to considerably reduce the noise level (dba) up to the required value. The Reval 182 pressure regulator can be supplied with an incorporated silencer in either the standard version or version with incorporated slam-shut or incorporated monitor regulator. With the built-in silencer, the g and KG valve coefficients are 5% lower than the corresponding version without the silencer. Given the modular arrangement of the regulator, the silencer may be retrofited to both standard Reval 182 version as well as those with incorporated slam-shut or monitor, without any need to piping modification. ressure reduction and control operate the same manner as in standard version. LAM HUTH B/82 OR VB/93 Reval 182 Fig. 3 Fig. 4 The Reval 182 pressure regulator offers the possibility of installing an incorporated slum shut valve B/82 or VB/93 valve, depending on the regulator size, and this can be done either during the manufacture process or be retrofited in the field. Retrofiting can be done without modifying the pressure regulator assembly. The g and KG coefficients of a regulator plus incorporated slam-shut system are 7 or 10% (depending on the slam shuth type) lower than those for standard versions. The main characteristics of this device are: - intervention for over pressure and/or under pressure - manual re-setting with internal by-pass activated by the lever mechanism; - manual push button control; - compact dimensions; - easy maintenance; - optional pneumatic or electromagnetic remote control; - optional installation remote signal devices (contact switches or proximity switches).

4 MONITOR INORORATED M/182 LAM HUT Reval 182 Fig. 5 This emergency regulator (monitor) is directly integrated to the body of the main regulator. Both pressure regulators, therefore, use the same valve body with the following exceptions: - are governed by two different independent pilots and by separate regulator valve seats. - the operational characteristics of the M/182 monitor are the same as for the Reval 182 regulator - the g and KG coefficients of regulator having an incorporated monitor are 7% lower than those for standard version. Another great advantage offered by the incorporated monitor regulator is that it can be installed at any time, even on an already existing regulator, without piping modification. This solution allows the construction of reduction lines with compact dimensions. MAIN FEATURE Reval 182 > Design pressure: up to 25 bar (362,5 sig) > Design temperature: -20 to +60 (-4 to F) > Ambient temperature: -20 to +60 (-4 to F) > Range of inlet pressure bpe: 0,5 to 25 bar ( 7 to 262,5 sig) > Range of outlet pressure Wh: 7mbar to12 bar (2,8 w.c. to 174 sig) depending on installed pilot > Minimum working differential pressure: 0,1 bar (1,45 sig) > Accuracy class A: up to 2,5 > losing pressure class G: from 10 to 1 depending on outlet pressure > Available size : / > Flanging: class 150 RF or RTJ according to ANI B16.5 and N25/40 according to IO 7005.

5 MATERIAL Reval 182 Body Head covers tem lug Valve seat Diaphragm eals ompression fittings ast steel ATM A216 WB for all sizes Ductile iron G IO 1083 for ize 8 Dye stamped carbon steel AII 416 tainless steel ATM A 350 LF2 Nickel coated on sealing surfaces teel + vulcanized rubber Rubberized canvas Nitrile rubber According to DIN 2353 in zinc-plated carbon steel The characteristics listed above are referred to standard products. pecial characteristics and materials for specific applications may be supplied upon request. g, KG and K1 coefficient Reval 182 Nominal diameter (mm) ize (inches) g flow coefficient K G flow coefficient K1 body shape factor / For sizing formula refer to AUTION: The graph gives a quick reference of maximum recommended regulator capacity depending on selected size. Values are expressed in actual m3/h of Natural gas (s.g. 0,6): to have the data directly in Nm3/h it is necessary to multiply the value by the outlet pressure value in bar absolute Actual flow rate ( m3/h ) Logarithmic scale Outlet pressure ( bar )

6 ILOT Reval Reflux Reval Reflux regulators are equipped with series 200 pilot as listed below: - 201/A 204/. control range Wh: 0,3 7 mbar to 43 to bar; 0,58 (4,5 bar; to (2,8 623 W.c. sig) to 8.4 sig) - 204/A. 205/. control range Wh: 20,3 to to 6012 bar; bar; (290 (4,35 to 870 to 174 sig) sig) ilots - 207/. may control be adjusted range Wh: manually 41 to 74 or bar; remotely (595 to 1073 sig) ilots may be adjusted manually or remotely as shown in table 3: ilot adjustments Reval 182 ilot type.../a Manual setting Table: ilot adjusting instructions Reflux 819 ilot type.../d Electric remote setting control ilot type.../ ilot type.../a F.I.O. ilot type.../d ilot type.../ neumatic remote setting control Manual setting mart unit for remote setting, monitoring flow limitation and indirect flow Electric measurement remote setting control etting increased by pneumatic signal remote point reregulators reregulators The pilot loop is completed with a device called preregulator, separate from the pilot. The pilot loop is completed with a device called preregulator, external to the pilot. The preregulators listed below are available: The preregulators listed below are available: - R14/A: self adjusting preregulator that automatically regulates the feeding pressure to the pilot - complete R14/A: self with adjusting integral filter preregulator at the inlet. that automatically regulates the feeding pressure to the pilot - complete R31/A: self with adjusting integral filter preregulator the inlet. that automatically regulates the feeding pressure to the pilot - R34/A: complete adiustable with integral preregulator filter the complete inlet. tandard with integral supply filter with at pilot the inlet. 201/A - R32/A: with adjustable set point, range of feeding pressure to the pilot ep =0,1 to 1,7 bar (1,44 to 24,6 psig - Table R42/A: : ressostatic with adjustable device set point, range of feeding Reflux pressure 819 to the pilot ep =0,8 to 9,5 bar (11 to 137) psig REOTATI DEVIE MIN. MAX REOTATI 101M DEVIE from 0,01 Reval to 0,26 182bar from 0,02 to 1 bar 102M from 0,04 to 2,8 bar from 0,2 to 5,5 bar MOD. B MIN. MAX 102MH from 2,8 to 5,5 bar from 0,2 to 5,5 bar 101M 0,01* 0,26* 0,02 1* 102M 103M from 0,04 0,2 to 2,88 bar from 0,2 2 to 5,5 22 bar 102MH 103MH from 2,88 to 5,5 19 bar from 0,22 to 5,5 22 bar 103M 0, MH 104M from 1,6 to 18 bar from 7,5 to 45 bar MH from 18 to 41 bar from 7,5 to 45 bar values in bar(g) 105M from 3 to 44 bar from 30 to 90 bar MOD. 105MH VB from 44 MIN. to 90 bar from 30 MAX to 90 bar values in mbar(g)

7 A OTIONAL Reval 182 For Regulator - stroke limiter - flow-limiting devices - limit switches - position transmitters - steel fittings, single or dual sealing For ilot - supplementary filter F 14 - dehydrating filter F 14/D IN-LINE MONITOR Reval 182 The monitor is generally installed upstream of the main regulator. Although the function of the monitor regulator is different, the two regulators are virtually identical from the point of view of their mechanical components. The only difference is that monitor is set at a higher pressure than the main regulator. The g and KG coefficients of the regulator plus in-line monitor system are about 20% lower than those of the regulator alone. M/A AELERATOR Reval 182 When the monitor is required to take over rapidly in the event of a main regulator failure, an M/A or V/25 accelerator pilot installation on the monitor is recommended. Installation of the accelerator is mandatory when monitor is used as safety accessory according to ED directive. This device, connected by sensing line to the downstream pressure, discharges the gas enclosed in the motorization chamber of the monitor regulator, allowing the monitor to take over faster. The set point of M/A accelerator is usually higher than set point of the monitor by 0.3 to 0.5 bar. A V/25 accelerator is available too with pressure set range Who 15 mbar to 6 bar. In case of working monitor configuration (two stage pressure cut with monitor override) the accelerator may not be necessary.

8 REVAL 182 Reval 182 E H G A F B D Overal dimensions in mm ize (mm) Inches 1" 2 2 1/ Ansi 150/N A B D E F G H Tubing onnections e10 x i 8 Face to face dimensions according to IE and EN 334 Weights in Kgf - Ansi 150/N REVAL B82 Reval 182 E Overal dimensions in mm ize (mm) Inches 1" 2 2 1/ Ansi 150/N A B * * * * * D * * * * * E F G H * * * * * L 98* 146* 146* 146* 146* M 194* 219* 232* 246* 263* N 125* 125* 125* 130* 130* Tubing onnections e10 x i 8 *indicated Dimensions with the MODEL VB/93 Weights in Kgf N * VB/93 H - Ansi 150/N * 56 52* 70 60* 88 72* * G A B D F D B L * VB/93 M

9 REVAL M182 Reval 182 E G A H F B D L Overal dimensions in mm ize (mm) Inches 1" 2 2 1/ Ansi 150/N A B D E F G H L Tubing onnections e10 x i 8 Face to face dimensions according to IE and EN 334 Weights in Kgf - Ansi 150/N

10 REVAL DB/182 Reval 182 E G A H F B D Overal dimensions in mm K ize (mm) Inches 1" 2 2 1/ Ansi 150/N A B D E F G H K Tubing onnections e10 x i 8 Face to face dimensions according to IE and EN 334 Weights in Kgf - Ansi 150/N REVAL 182+DB/182+B82 Reval 182 E H G A F Overal dimensions in mm ize (mm) Inches 1" 2 2 1/ Ansi 150/N A B * * * * * D * * * * * E F G H * * * * * K L 98* 146* 146* 146* 146* M 194* 219* 232* 246* 263* N 125* 125* 125* 130* 130 Tubing onnections e10 x i 8 *indicated Dimensions with the MODEL VB/93 Weights in Kgf N * A - Ansi 150/N * 90 52* * * * D B K D B L * A M

11 REVAL DB/182+ M/182 Reval 182 E H G F D B L K M Overal dimensions in mm ize (mm) Inches 1" 2 2 1/ Ansi 150/N A B D E F G H L M K Tubing onnections e10 x i 8 Face to face dimensions according to IE and EN 334 Weights in Kgf - Ansi 150/N

12 ietro Fiorentini olutions Reducing and metering stations Metering Ball valves DA ITEMARE!!!!!!!! ietro Fiorentini.p.A. via E.Fermi 8/10 I Arcugnano (VI) Italy Tel Fax The data are not binding. We reserve the right to make eventual changes without prior notice. T-s 520-E April 10