Pressure Regulator 133 / 233

Transcription

1 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: 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

2 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

3 Technical Data and Type Designation Type 133, Pi bar Pressure rate Inlet pressure PN bar PN bar Outlet pressure 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 bar Pressure rate Inlet pressure PN bar PN bar Outlet pressure 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 for Pe 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) SSV Pso 400 mbar and safety diaphragm, PN 1 (133 and /-12 ) SSV Pso and Psu, as well as safety diaphragm, PN 1 (133 and /-12 ) SSV Pso 450 mbar and safety diaphragm, PN 1 (133 and /-12 ) 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 > bar Pressure rate Inlet pressure PN bar Max. orifice-ø 3/16 (4.7mm) Outlet pressure 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

4 Type 233, Pi > bar Pressure rate Inlet pressure PN bar Max. orifice-ø 3/8 (10mm) Outlet pressure 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 for Pe > 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 for Pi up to bar without DVGW-Reg N 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 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

5 Regulator variants Type 133 DN 25, PN 16 ANSI 150 Female thread Male thread DN 25, PN 16 DN 25, 133-E SSV Type 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 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 (-12) -71/ -72/

6 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 Rp 3/ /2 DN Rp DN Rp /2 DN Rp DN Rp J Dimension, Type 133-E R L N Rp Rp 1-1/

7 Command and adjustable range Command ranges for Pressure Springs Regulator Type Command range Part No. Colour marking 9 15 mbar red mbar blue with gas loss mbar silver protection mbar yellow mbar orange 8 16 mbar red mbar blue mbar green mbar orange mbar black-white mbar silver 133 HP mbar black 8 16 mbar red mbar blue mbar green mbar orange mbar black mbar metal blank mbar green mbar orange mbar black mbar metal blank HP mbar silver metal blank Adjustable ranges for SSV, Type 033 for upper shut-off Shut-off Adjustable range Part No. Colour marking Upper mbar red (overpressure) mbar blue Pso mbar green Adjustable ranges SSV -I,-II for upper and lower shut-off Shut-off Adjustable range Part No. Colour marking Upper mbar red (overpressure) mbar blue mbar green Pso mbar brown mbar silver Lower 8 50 mbar red (underpressure) Psu 7

8 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 mbar: AC 5 / SG 10 Response closing group SSV: Upper response pressure Pso, 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 Command Range mbar green Po = 50 mbar Command Range mbar orange Po = 100 mbar Command Range mbar blk-white

9 Regulator Type 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 Command Range mbar Po = 50 mbar Command Range mbar 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 ) Po = 20 mbar Command Range mbar Pressure Spring green Po = 50 mbar Command Range mbar Pressure Spring orange Po = 100 mbar Command Range mbar Pressure Spring black-white (1) With Pi > 4.0 bar, external impulse is required. (2) The volumes below the lines are not regulated with the accuracy indicated. 9

10 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 ) Po = 140 mbar Command Range mbar Pressure Spring silver Po = 300 mbar Command Range mbar Pressure Spring black Po = 400 mbar Command Range mbar Pressure Spring black (1) With Pi > 4.0 bar, external impulse is required. (2) The volumes below the lines are not regulated with the accuracy indicated. 10

11 Regulator Type , 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 Po = 20 mbar Command Range mbar Pressure Spring green Po = 50 mbar Command Range mbar Pressure Spring orange Po = 100 mbar Command Range mbar Pressure Spring black Po = 200 mbar Command Range mbar Pressure Spring silver (1) With Pi > 4.0 bar, external impulse is required. (2) The volumes below the lines are not regulated with the accuracy indicated. 11

12 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 Po = 50 mbar Command Range mbar Pressure Spring green Po = 100 mbar Command Range mbar Pressure Spring orange Po = 200 mbar Command Range mbar Pressure Spring black Po = 400 mbar Command Range mbar Pressure Spring silver (1) With Pi > 4.0 bar, external impulse is required. (2) The volumes below the lines are not regulated with the accuracy indicated. 12

13 Regulator Type , 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 Po = 20 mbar Command Range mbar Pressure Spring green Po = 50 mbar Command Range mbar Pressure Spring orange Po = 100 mbar Command Range mbar Pressure Spring black Po = 200 mbar Command Range mbar Pressure Spring silver (1) With Pi > 4.0 bar, external impulse is required. (2) The volumes below the lines are not regulated with the accuracy indicated. 13

14 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 Po = 50 mbar Command Range mbar Pressure Spring green Po = 100 mbar Command Range mbar Pressure Spring orange Po = 200 mbar Command Range mbar Pressure Spring black Po = 400 mbar Command Range mbar Pressure Spring silver (1) With Pi > 4.0 bar, external impulse is required. (2) The volumes below the lines are not regulated with the accuracy indicated. 14

15 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

16 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 limit of lift for upper shutoff with lower and upper switching points Schlumberger reserves the right to change these specifications without prior notice EU - GA GB For further information, please contact your local Schlumberger representative. 16