Benefits Accurate regulation Exchangeable component technique Easy maintenance Suitable for HTB requirements DVGW-approval (DIN 3380/81, VP 200). Description The 133/233 regulator is a direct-acting, spring loaded regulator with an integrated safety shut-off device. The lever system ensures exact outlet pressure, and fast response when the flow rate varies. Applications They are designed for residential and industrial use, such as industries, and heating plants, as well as for all installations where accurate pressure control, easy adjustment and fast response times are required, such as for burners, industrial ovens, boilers, etc. Pressure Regulator Technical features Inlet pressure range Outlet pressure range Accuracy class Operating temperature Ambient Temperature Acceptable gases Safety devices Options Pi: 0.05 8.0 bar Po: 10 mbar 0,7 bar AC5/10, SG10/20, AG10/5-20 C to +60 C -30 C to +60 C Natural gas, propane, butane, air, nitrogen and all non-corrosive gases. Optional built-in safety shut-off valve: OPSO: Over-pressure shut-off (SSV-I, 033) UPSO: Under-pressure shut-off (SSV-II) Safety diaphragm Safety Relief valve Connections Sizes DN 25, DN 40 and DN 50 Dimensions see table page 6 Flanges PN16 DIN, ANSI 150 Thread G 3/4, G 1, G1 1/2 Construction Body GGG 40, DIN 1693 Actuator GD-Al Si 12, DIN 1725 Body SSV Brass Internal parts Brass/Steel, zinc protected Seals NBR rubber/viton Diaphragm NBR rubber/nbr rubber, reinforced fabric 1
The 133/233 regulators are direct-acting, spring loaded regulators, which can be used for all non-aggressive gases. The required outlet pressure can be easily set to another command range by adjusting the command variable, or by exchanging the spring. Due to their spring principle, these regulators operate independently of their positions. They offer various installation possibilities as a result of flange connections between the actuator body and the regulating unit and, flange connections between the actuator body and the SSV switching device. The nozzle, regulating unit, and SSV switching device, can be exchanged without removing the actuator body from the regulated member. The safety shut-off valve is equipped with a thermally working element. All models with a leaking gas blow-off valve (SRV) have a fixed blow-off pressure 1 ). The blow-off pressure is, independently of the setting of the outlet pressure, approximately 30 mbar above Pa. A ventilation/blow-off line has to be connected to the ventilation connection of the regulator. The models with safety diaphragms are not equipped with the SBV and the ventilation/blow-off line. If the working diaphragm is damaged, the safety diaphragm prevents gas from leaking in unacceptable amounts. 1) See accuracy class SRV page 8 ventilation connection with sieve design with integrated safety diaphragm feeler (1) (diaphragm) ventilation connection desired-value setting loaded spring flange connection actuator body actuator (4,7) (exchangeable nozzles) valve disk loaded spring (10) measuring unit with lever system (34) (5) valve rod reset with cap (26,35) design with leaking-gas blow-off valve SRV (8) (6) diaphragm compartment regulating unit body lever system (3) with actuator closing spring (14) SSV with thermal shutoff flange connection 2
Technical Data and Type Designation Type 133, Pi 0.05-4.0 bar Pressure rate Inlet pressure PN 1 0.05-1.0 bar PN 4 0.35-4.0 bar Outlet pressure 8-420 mbar Flow rate, up to 65 m 3 /h Natural gas Working temperature -20 bis +60 C Connection / Size see page 5 Type 233, Pi 0.05-4.0 bar Pressure rate Inlet pressure PN 1 0.05-1.0 bar PN 4 0.37-4.0 bar Outlet pressure 8-700 mbar Flow rate, up to 400 m 3 /h Natural gas Working temperature -20 bis +60 C Connection / Size see page 5 Designation of regulator 133 and 233 1 for Pe 0.1-4.0 2 bar approved according VP 200, DIN 3380 / 81 with DVGW-Reg. No., with t (HTB): - 31 without safety devices - 32 with SRV - 61 SSV Pso 400 mbar - 62 SSV Pso 400 mbar and SRV - 64 SSV Pso and Psu - 66 SSV Pso and Psu and SRV - 71 SSV Pso 450 mbar - 72 SSV Pso 450 mbar and SRV - 77 SSV Pso 450 mbar, SRV and gas loss protection, PN 1 (only 133) - 630 SSV Pso 400 mbar and safety diaphragm, PN 1 (133 and 233-8 /-12 ) - 650 SSV Pso and Psu, as well as safety diaphragm, PN 1 (133 and 233-8 /-12 ) - 730 SSV Pso 450 mbar and safety diaphragm, PN 1 (133 and 233-8 /-12 ) - 770 SSV Pso 450 mbar, gas loss protection and safety diaphragm, PN 1 (only regulator 133) (1) select the diaphragm housing -8" or -12" (2) note the max. orifice-ø Type 133, Pi > 4.0-6.0 bar Pressure rate Inlet pressure PN 6 0.35-6.0 bar Max. orifice-ø 3/16 (4.7mm) Outlet pressure 20-420 mbar Flow rate, up to 65 m 3 /h Natural gas Working temperature -20 bis +60 C External impulse Connection / Size see page 5 3
Type 233, Pi > 4.0-6.0 bar Pressure rate Inlet pressure PN 6 0.35-6.0 bar Max. orifice-ø 3/8 (10mm) Outlet pressure 20-700 mbar Flow rate, up to 400 m 3 /h Natural gas Working temperature -20 bis +60 C External impulse Connection / Size see page 5 Designation of regulator 133 and 233 1 for Pe >4.0-6.0 2 bar approved according DIN 3380 / 81 with DVGW-Reg. No., without t : - 32 with SRV - 66 SSV pso and psu, as well as SRV (1) select the diaphragm housing -8" or -12" (2) note the max. orifice-ø Designation of regulator 133 and 233 1 for Pi up to 8.0 2 bar without DVGW-Reg N. - 31 without safety devices - 32 with SRV - 34 with gas loss protection - 36 with gas loss protection and SRV - 61 SSV Pso - 62 SSV Pso and SRV - 64 SSV Pso and Psu - 66 SSV Pso and Psu and SRV Type Designation Example: Regulator type 233, pressure stage PN 4, 12 diaphragm housing, SSV for upper shut off 450 mbar, with safety relief valve (SRV): Type 233 12 4 72 Type 3 Diaphragm housing 2 Pressure rate 1 Safety shut-off valve (see table) (1) no digit for pressure rate PN 1 (2) no diaphragm housing size for type 133 (3) Type 133 single pipe marked 133-E Construction Body GGG 40, DIN 1693 Diaphragm housing GD-Al Si 12 DIN 1725 SSV-Body Brass, hot pressed Orifice Brass Diaphragm NBR/NBR reinforced O-rings NBR/Viton Valve disk regulator Aluminium/NBR Valve disk SSV Brass/NBR 4
Regulator variants Type 133 DN 25, PN 16 ANSI 150 Female thread Male thread DN 25, PN 16 DN 25, 133-E SSV Type 233-12 G 3/4, G1 3/4 -, 1 -NPT 3/4 -, 1 -BSPT G1 1/2 (140 mm length) G1 1/2 (160 mm length) Type 233-8 DN 50, PN 16 ANSI 150 DN 40, PN 16 ANSI 150 Female thread G1 1/2, 1 1/2 NPT 1 1/2 -BSPT SSV Installation Please indicate desired installating position when you order. If not otherwise stated, the regulators are assembled and adjusted for normal installation (position 2): Regulator 133-vent pointing outward, Regulator 233-vent pointing inward. Pos. 1 Pos. 3* Regulator 233-vent Pos. 5 pointing outward Pos. 2 Pos. 4* Regulator 233-vent Pos. 6 pointing outward Pos. 7 Pos. 8 Pos. 9 Pos. 10 *) Pos. 3 and 4: Not to use for 233-8 (-12) -71/ -72/ -730 5
Dimensions J Model Thread Flange A B C C D E F G H J K Weight in kg Type Size Ventilation (approx.) (1) (2) Connection (1) (2) 133-3/4 /1 DN 25 190 155 100 160 170 100 100 75 120 Rp 3/4 74 4 6 233-12 1 1/2 DN 40 350 250 150 200 265 155 115 75 120 Rp 1 110 11 15 233-12 - DN 50 350 250-200 265 155 115 75 120 Rp 1 110-16 233-8 1 1/2 DN 40 260 250 150 200 220 125 115 75 120 Rp 1 105 9 13 233-8 - DN 50 260 250-200 220 125 115 75 120 Rp 1 105-14 J Dimension, Type 133-E R L N Rp 1 110 41 Rp 1-1/2 140 50 6
Command and adjustable range Command ranges for Pressure Springs Regulator Type Command range Part No. Colour marking 9 15 mbar 955-200-08 red 133 14 20 mbar 955-200-09 blue with gas loss 18 26 mbar 955-201-06 silver protection 24 40 mbar 955-202-98 yellow 38 53 mbar 955-200-11 orange 8 16 mbar 955-200-08 red 12 20 mbar 955-200-09 blue 133 15 35 mbar 955-200-10 green 30 70 mbar 955-200-11 orange 50 140 mbar 955-200-12 black-white 100 210 mbar 955-200-83 silver 133 HP 140 420 mbar 955-200-84 black 8 16 mbar 955-200-13 red 12 20 mbar 955-200-14 blue 233-12 15 35 mbar 955-200-15 green 30 70 mbar 955-200-16 orange 70 140 mbar 955-200-17 black 100 210 mbar 955-200-18 metal blank 30 70 mbar 955-200-15 green 233-8 70 140 mbar 955-200-16 orange 140 300 mbar 955-200-17 black 210 450 mbar 955-200-18 metal blank 233-8 HP 420 700 mbar 955-200-69 silver 955-200-18 metal blank Adjustable ranges for SSV, Type 033 for upper shut-off Shut-off Adjustable range Part No. Colour marking Upper 40 70 mbar 955-200-22 red (overpressure) 50 150 mbar 955-200-23 blue Pso 140 450 mbar 955-200-24 green Adjustable ranges SSV -I,-II for upper and lower shut-off Shut-off Adjustable range Part No. Colour marking Upper 20 60 mbar 955-200-22 red (overpressure) 50 120 mbar 955-200-23 blue 100 400 mbar 955-200-24 green Pso 300 600 mbar 955-200-52 brown 400 1000 mbar 955-202-42 silver Lower 8 50 mbar 955-200-32 red (underpressure) Psu 7
Accuracy class and closing group regulator (AC, SG): Outlet pressure po: 8 mbar - 20 mbar: AC 20 / SG 30 >20 mbar - 50 mbar: AC 10 / SG 20 > 50 mbar - 420 mbar: AC 5 / SG 10 Response closing group SSV: Upper response pressure Pso, 40 1000 mbar: AG 10 Lower response pressure Psu, 8 20 mbar: AG 30 >20 50 mbar: AG 10 Accuracy class SRV: (Po + approx. 30 mbar) ± 10% Ventilation: Gas pressure regulators without a safety diaphragm, and gas pressure regulators with an integrated safety reliev valve (SRV), require ventilation and blow-off lines respectively. The minimum diameters stipulated by the DIN 3380 standards are DN 15. In order to ensure disturbance-free regulation and a sufficiently quick response for load changes, the following nominal widths and installation lengths have to be observed: up to 3 m ventilation line: DN 20 up to 5 m ventilation line: DN 25 For longer lengths, at least DN 40 is recommended. Pressure difference minimal, between outlet pressure Po and SSV shut-off: SSV 033: 20 mbar between Po and Pso SSV II, lower: 14 mbar between Po and Psu SSV II, upper: 20 mbar between Po and Pso Regulator Type 133-E, Body DN 25, Pe max 1.0 bar Flow rate in m 3 /h natural gas in standard state (ρn = 0.78 kg/m 3 ) Adjustable Data Inlet Outlet Pressure Pressure Orifice Inserts Po (mbar) Pi (bar) Spring range / 12.5 mm 10 mm 8 mm 6.3 mm 4.7 mm 3 mm No. / colour (1/2 ) (3/8 ) (5/16 ) (1/4 ) (3/16 ) (1/8 ) Po = 20 mbar 0.1 16 15 12 11 7 3 Command Range 0.3 27 26 18 14 12 6 15 35 mbar 0.5 32 28 19 17 15 8 955-200-10 green 1.0 38 37 20 20 19 11 Po = 50 mbar 0.1 - - - - - - Command Range 0.3 20 16 12 10 7 5 30 70 mbar 0.5 24 20 14 12 10 6 955-200-11 orange 1.0 29 26 17 16 14 10 Po = 100 mbar 0.1 - - - - - - Command Range 0.3 21 18 12 10 9 4 35 140 mbar 0.5 28 23 16 12 10 6 955-200-12 blk-white 1.0 40 38 23 19 16 10 8
Regulator Type 133-77 and -770 (with gas loss protection), Body DN 25, Pe max 1.0 bar Flow rate in m 3 /h natural gas in standard state (ρn = 0.78 kg/m 3 ) Adjustable Data Outlet Pressure Inlet Orifice Po (mbar) Pressure 12.5 mm Spring range / Pi (bar) No. / colour Po = 20 mbar 0.1 13 Command Range 0.3 20 18 26 mbar 0.5 25 955-2001-06 1.0 32 Po = 50 mbar 0.15 14 Command Range 0.3 22 38 53 mbar 0.5 27 955-200-11 1.0 34 Regulator Type 133, Actuator Body DN 25 Flow rate in m 3 /h natural gas in standard state (ρn = 0.78 kg/m 3 ) (see footnotes 1. and 2.) Adjustable Data Inlet Outlet Pressure Pressure 1 Orifice Inserts Po (mbar) Pi (bar) Spring range / 12.5 mm 10 mm 8 mm 6.3 mm 4.7 mm 3 mm No. / colour (1/2 ) (3/8 ) (5/16 ) (1/4 ) (3/16 ) (1/8 ) 0.1 24 17 16 9 - - 0.3 40 36 29 22 13 6 Po = 20 mbar 0.5 48 46 40 30 17 8 Command Range 1.0 61 56 53 41 25 12 15 35 mbar 1.5-63 61 56 33 14 Pressure Spring 2.0-64 63 57 38 18 955-200-10 3.0 - - - 59 51 24 green 4.0 - - - 64 52 31 5.0 - - - - 53 35 6.0 - - - - 54 40 8.0 - - - - 60 50 0.1 14 13 11 - - - 0.3 31 29 22 16 12 4 Po = 50 mbar 0.5 44 42 37 24 15 8 Command Range 1.0 58 52 46 40 24 11 30 70 mbar 1.5-59 57 54 30 14 Pressure Spring 2.0-61 60 56 35 16 955-200-11 3.0 - - - 60 48 22 orange 4.0 - - - 65 53 27 5.0 - - - - 54 30 6.0 - - - - 56 36 8.0 - - - - 66 50 0.2 22 18 14 12 8 3 0.3 33 28 18 16 11 4 Po = 100 mbar 0.5 50 35 28 24 12 8 Command Range 1.0 60 52 48 39 23 12 50 140 mbar 1.5-58 56 52 29 13 Pressure Spring 2.0-60 59 55 34 16 955-200-12 3.0 - - - 60 48 21 black-white 4.0 - - - 63 52 25 5.0 - - - - 60 31 6.0 - - - - 65 35 8.0 - - - - 70 50 (1) With Pi > 4.0 bar, external impulse is required. (2) The volumes below the lines are not regulated with the accuracy indicated. 9
Regulator Type 133, Actuator Body DN 25 Adjustable Data Inlet Flow rate in m 3 /h natural gas in standard state (ρn = 0.78 kg/m 3 ) (see footnotes 1. and 2.) Outlet Pressure Pressure 1 Orifice Inserts Po (mbar) Pi (bar) Spring range / 12.5 mm 10 mm 8 mm 6.3 mm 4.7 mm 3 mm No. / colour (1/2 ) (3/8 ) (5/16 ) (1/4 ) (3/16 ) (1/8 ) 0.1 - - - - - - 0.3 18 15 12 10 7 3 Po = 140 mbar 0.5 25 21 17 14 10 6 Command Range 1.0 44 36 29 22 17 10 100 210 mbar 1.5-46 38 28 24 13 Pressure Spring 2.0-53 43 35 29 16 955-200-83 3.0 - - 56 47 39 22 silver 4.0 - - - 59 49 26 5.0 - - - - 55 31 6.0 - - - - 65 35 8.0 - - - - 79 46 0.5 18 15 11 8 6-1.0 35 29 23 16 13 9 Po = 300 mbar 1.5-38 33 25 18 12 Command Range 2.0-46 40 33 25 15 140 420 mbar 3.0 - - 53 43 38 21 Pressure Spring 4.0 - - 66 51 46 26 955-200-84 5.0 - - - - 55 31 black 6.0 - - - - 65 35 8.0 - - - - 79 42 0.7 26 22 17 12 10 6 1.0 33 28 21 17 12 8 Po = 400 mbar 1.5-37 31 26 16 10 Command Range 2.0-44 38 31 23 12 140 420 mbar 3.0 - - 50 41 36 18 Pressure Spring 4.0 - - 64 49 44 24 955-200-84 5.0 - - - - 53 29 black 6.0 - - - - 63 33 8.0 - - - - 77 40 (1) With Pi > 4.0 bar, external impulse is required. (2) The volumes below the lines are not regulated with the accuracy indicated. 10
Regulator Type 233-12, Actuator Body DN 40 Adjustable Data Inlet Flow rate in m 3 /h natural gas in standard state (ρn = 0.78 kg/m 3 (see footnotes 1. and 2.) Outlet Pressure Pressure 1 Orifice Inserts / Valve Disk Angle Po (mbar) Pi (bar) Spring range / 25 mm (1 ) 20 mm (3/4 ) 12.5 mm (1/2 ) 10 mm (3/8 ) 6.3 mm (1/4 ) No. / colour 30 10 10 10 10 0.1 75 58 40 24 12 0.3 142 114 82 48 23 0.5 188 149 110 64 32 Po = 20 mbar 1.0 250 208 158 98 47 Command Range 1.5 280 241 195 125 57 15 35 mbar 2.0-260 215 147 68 Pressure Spring 3.0-300 266 190 92 955-200-15 4.0-310 300 210 113 green 5.0 - - 300 230 120 6.0 - - 300 250 130 8.0 - - - 250 160 0.1 51 43 26 20-0.3 125 95 62 43 21 0.5 169 130 88 58 29 Po = 50 mbar 1.0 250 190 140 95 46 Command Range 1.5 286 228 180 120 57 30 70 mbar 2.0-254 210 140 68 Pressure Spring 3.0-295 250 190 90 955-200-16 4.0-315 280 220 110 orange 5.0 - - 300 230 122 6.0 - - 300 250 130 8.0 - - - 250 160 0.2 73 52 38 25 15 0.3 110 81 54 36 20 0.5 160 119 79 53 30 Po = 100 mbar 1.0 237 183 136 90 44 Command Range 1.5 266 221 168 119 57 70 140 mbar 2.0-258 204 142 65 Pressure Spring 3.0-290 248 191 87 955-200-17 4.0-319 277 230 109 black 5.0 - - 300 240 124 6.0 - - 300 250 130 8.0 - - - 250 160 0.4 140 107 70 45 22 0.5 175 134 90 56 27 Po = 200 mbar 1.0 304 224 156 98 43 Command Range 1.5 355 272 207 127 57 100 210 mbar 2.0-291 230 142 64 Pressure Spring 3.0-350 287 190 86 955-200-18 4.0-376 310 230 110 silver 5.0 - - 320 250 125 6.0 - - 330 260 130 8.0 - - - 260 160 (1) With Pi > 4.0 bar, external impulse is required. (2) The volumes below the lines are not regulated with the accuracy indicated. 11
Regulator Type 233-8, Actuator Body DN 40 Adjustable Data Inlet Flow rate in m 3 /h natural gas in standard state (ρn = 0.78 kg/m 3 ) (see footnotes 1. and 2.) Outlet Pressure Pressure 1 Orifice Inserts / Valve Disk Angle Po (mbar) Pi (bar) Spring range / 25 mm (1 ) 20 mm (3/4 ) 12.5 mm (1/2 ) 10 mm (3/8 ) 6.3 mm (1/4 ) No. / colour 30 10 10 10 10 0.2 75 56 30 19 14 0.3 105 78 47 30 18 0.5 142 115 68 46 26 Po = 50 mbar 1.0 235 189 132 90 46 Command Range 1.5 262 223 166 118 55 30 70 mbar 2.0-255 200 147 68 Pressure Spring 3.0 - - 243 190 90 955-200-15 4.0 - - 278 232 112 green 5.0 - - 293 254 126 6.0 - - 304 270 138 8.0 - - - - 170 0.3 93 73 41 26 18 0.5 136 106 65 42 26 Po = 100 mbar 1.0 220 170 114 79 41 Command Range 1.5 261 205 149 102 55 70 140 mbar 2.0-236 180 126 66 Pressure Spring 3.0 - - 231 186 87 955-200-16 4.0 - - 263 225 109 orange 5.0 - - 285 248 128 6.0 - - 300 275 146 8.0 - - - - 178 0.4 124 96 63 42 23 0.5 148 118 79 52 27 Po = 200 mbar 1.0 260 198 127 90 46 Command Range 1.5 298 252 152 117 58 140 300 mbar 2.0-296 190 143 70 Pressure Spring 3.0 - - 266 197 89 955-200-17 4.0 - - 300 240 112 black 5.0 - - 312 256 131 6.0 - - 324 279 146 8.0 - - - - 178 0.7 152 126 86 61 32 Po = 400 mbar 1.0 220 175 118 80 46 Command Range 1.5 277 214 142 107 54 210 450 mbar 2.0-256 172 130 66 Pressure Spring 3.0 - - 223 167 86 955-200-18 4.0 - - 241 176 108 silver 5.0 - - 266 206 127 6.0 - - 281 217 142 8.0 - - - - 172 (1) With Pi > 4.0 bar, external impulse is required. (2) The volumes below the lines are not regulated with the accuracy indicated. 12
Regulator Type 233-12, Actuator Body DN 50 Adjustable Data Inlet Flow rate in m 3 /h natural gas in standard state (ρn = 0.78 kg/m 3 ) (see footnotes 1. and 2.) Outlet Pressure Pressure 1 Orifice Inserts / Valve Disk Angle Po (mbar) Pi (bar) Spring range / 25 mm (1 ) 20 mm (3/4 ) 20 mm (3/4 ) 12.5 mm (1/2 ) 10 mm (3/8 ) 6.3 mm (1/4 ) No. / colour 30 30 10 10 10 10 0.1 97 74 66 41 25 12 0.3 214 180 142 79 50 23 0.5 288 250 187 119 69 30 Po = 20 mbar 1.0 385 360 267 182 106 46 Command Range 1.5 425 400 292 230 128 57 15 35 mbar 2.0-410 317 255 153 68 Pressure Spring 3.0 - - 362 324 205 86 955-200-15 4.0 - - 394 340 240 105 green 5.0 - - - 350 264 118 6.0 - - - 362 288 130 8.0 - - - - 305 150 0.1 66 52 45 31 20-0.3 165 130 110 65 43 22 0.5 245 200 157 97 60 29 Po = 50 mbar 1.0 387 320 240 163 98 45 Command Range 1.5 421 390 287 219 127 55 30 70 mbar 2.0-410 317 255 152 66 Pressure Spring 3.0 - - 365 312 205 89 955-200-16 4.0 - - 394 340 240 110 orange 5.0 - - - 350 264 123 6.0 - - - 362 288 140 8.0 - - - - 305 160 0.2 95 65 60 40 30 14 0.3 160 117 105 65 44 21 0.5 241 178 155 97 62 29 Po = 100 mbar 1.0 380 307 260 162 98 45 Command Range 1.5 446 379 326 216 126 57 70 140 mbar 2.0-410 376 255 153 69 Pressure Spring 3.0 - - 420 320 205 91 955-200-17 4.0 - - 430 375 240 110 black 5.0 - - - 390 270 125 6.0 - - - 405 300 140 8.0 - - - - 310 160 0.4 165 125 110 70 45 25 0.5 204 150 133 83 55 30 Po = 200 mbar 1.0 320 248 221 149 97 45 Command Range 1.5 371 310 267 198 126 57 100 210 mbar 2.0-360 305 230 152 71 Pressure Spring 3.0 - - 360 300 205 91 955-200-18 4.0 - - 400 320 240 110 silver 5.0 - - - 330 265 125 6.0 - - - 350 300 140 8.0 - - - - 310 160 (1) With Pi > 4.0 bar, external impulse is required. (2) The volumes below the lines are not regulated with the accuracy indicated. 13
Regulator Type 233-8, Actuator Body DN 50 Adjustable Data Inlet Flow rate in m 3 /h natural gas in standard state (ρn = 0.78 kg/m 3 (see footnotes 1. and 2.) Outlet Pressure Pressure 1 Orifice Inserts / Valve Disk Angle Po (mbar) Pi (bar) Spring range / 25 mm (1 ) 20 mm (3/4 ) 20 mm (3/4 ) 12.5 mm (1/2 ) 10 mm (3/8 ) 6.3 mm (1/4 ) No. / colour 30 30 10 10 10 10 0.2 75 60 48 34 22 14 0.3 122 83 71 52 33 20 0.5 187 148 117 74 49 28 Po = 50 mbar 1.0 321 266 208 151 104 45 Command Range 1.5 352 320 240 190 129 55 30 70 mbar 2.0-370 270 231 155 66 Pressure Spring 3.0 - - - 300 208 94 955-200-15 4.0 - - - 340 236 117 green 5.0 - - - 349 259 130 6.0 - - - 358 281 141 8.0 - - - - - 168 0.3 94 78 75 45 28 20 0.5 137 116 108 70 42 28 Po = 100 mbar 1.0 293 241 189 122 83 46 Command Range 1.5 342 332 232 164 107 55 70 140 mbar 2.0-401 270 208 134 66 Pressure Spring 3.0 - - - 281 189 92 955-200-16 4.0 - - - 317 237 113 orange 5.0 - - - 340 251 131 6.0 - - - 356 270 146 8.0 - - - - - 172 0.4 115 95 88 55 38 22 0.5 154 120 116 69 48 27 Po = 200 mbar 1.0 293 241 198 127 93 45 Command Range 1.5 363 343 252 181 121 57 140 300 mbar 2.0-414 296 228 147 69 Pressure Spring 3.0 - - - 304 199 95 955-200-17 4.0 - - - 350 231 117 black 5.0 - - - 378 262 139 6.0 - - - 392 284 150 8.0 - - - - - 181 0.7 160 123 110 81 62 29 Po = 400 mbar 1.0 221 165 153 113 82 40 Command Range 1.5 294 216 191 142 110 54 210 450 mbar 2.0-274 231 170 128 66 Pressure Spring 3.0 - - - 226 167 91 955-200-18 4.0 - - - 252 200 112 silver 5.0 - - - 278 232 133 6.0 - - - 295 255 150 8.0 - - - - - 183 (1) With Pi > 4.0 bar, external impulse is required. (2) The volumes below the lines are not regulated with the accuracy indicated. 14
Operating Principle The function of a regulator is to keep the outlet pressure constant, independently of the inlet pressure and the gas flow. At zero consumption (Q = 0), they close tightly. The comparator (1) is loaded with a spring (2) and transmits its movement to the actuator (4) by means of a lever system (3). The desired values are achieved by the respective command variable (spring load). The venturi effect, which is achieved by the design of the body, outlet section (5) and connection channel (6) to the comparator (1), overcomes the spring characteristics and generates a slight increase in the outlet pressure at an increasing flow. Without gas flowing, the regulator is open, i.e., the set command value (spring force) presses the comparator (1) as well as the lever system (3) downwards; the actuator opens and gas flows through the orifice (7). As a result, an outlet pressure can develop and generate a force at the comparator (1), which counteracts the set command value. If this force exceeds the command value, the rods (3) are lifted by the comparator (1), and the valve disk (4) starts to narrow the clearance area at the orifice (7) thereby throttling the gas flow. If the outlet pressure falls due to the sinking gas volume behind the orifice (7) and, hence, in the diaphragm compartment (8), the actuator (4) is opened by the dominating spring force. This changing process is repeated until a balance between the command value and the outlet pressure on the comparator (1) depending on the gas flow, is achieved. If the actuator (4.7) is damaged, or if the rods (3) are blocked, the pressure in the regulating unit, and behind the actuator (4.7) can only increase until the integrated SSV responds and interrupts the gas flow. feeler (1) (diaphragm) ventilation connection desired-value setting loaded spring (2) flange connection actuator body actuator (4,7) (exchangeable nozzles) valve disk loaded spring (10) measuring unit with lever system (34) (5) valve rod reset with cap (26,35) design with leaking-gas SBV (8) (6) diaphragm compartment regulating unit body lever system (3) with actuator closing spring (14) flange connection 15
Over-pressure function When the outlet pressure of a gas pressure regulator reaches an inadmissible value, the increased pressure is also transmitted through the pulse bore (13) to the comparator (9) of the SSV. When the force below the comparator (9) reaches the force of the load spring (10) against over-pressure, the comparator (9) with the lever system (11) (for SSV with upper switching point) and with the guide bush (28) (for SSV with upper and lower switching points) is pushed upwards. The lever system (11) is released so that the force of the closing spring (14) is set free, and the valve disk (12) is pushed against the orifice (7). Under-pressure function When the outlet pressure of the regulator falls to such a degree that the force below the comparator (9) becomes smaller than the force of the spring for under-pressure (30), the load spring (30) pushes the comparator downwards. (Against over-pressure (10), the load spring is mounted with the guide bush (28) at the retention shoulder (32)). The lever system is released so that the force of the closing spring (14) is also released and the valve disk (12) is pushed against the orifice. Commissioning The SSV is commissioned by pulling out the valve rod (26) and engaging the lever system (11). However, the SSV with upper and lower shut-off require that the pressure below the comparator (9) lies above the lower switching pressure against underpressure, and below the switching pressure against over-pressure, so that the lever (11) touches the arm (33) of the rocking lever (34). The cap (35) and the valve rod (26) are equipped with threads. Consequently, a slight resetting of the valve rod is possible. with upper switching point P so 400 mbar 3 6 4 7 5 13 14 12 34 36 11 10 9 32 33 12 limit of lift for upper shutoff 14 34 36 11 26 35 with lower and upper switching points 10 30 28 9 Schlumberger reserves the right to change these specifications without prior notice EU - GA - 00026.0 - GB - 12.00 For further information, please contact your local Schlumberger representative. 16