Data Sheet

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Bulletin 71.2:92C

D100137X012

November 2009





The Type 92C regulator (Figure 1) is an economical

cast iron, steel, or stainless steel pressure-reducing

regulator used in steam, liquid or hot air service. This

regulator is available with a Type 6392 pilot for use

as a pilot-operated regulator or without a pilot for use

as a pressure-loaded regulator. The pilot-operated

version uses inlet pressure as the operating medium;

no separate air supply is required. The pressure-

loaded version is used where remote adjustment of the

regulator pressure setting is required; a Type 67, 1301F

regulator, or a 670 panel loader can be used as the

loading regulator.

A Type 6492HM or 6492HTM safety override pilot is

also available for the Type 92C. The Type 6392 pilot

is used in a series installation with the Type 6492HM

or 6492HTM safety override pilot installed on the

upstream valve. The Type 6492HM or 6492HTM

safety override pilot senses pressure downstream

of the second valve, and prevents pressure from

rising above safe operating pressure in the event the

downstream valve fails. This system is approved by

ASME B31.1-1989, 122.14.2.A, and can replace an

ASME safety valve when vent piping is not practical

and upstream pressure does not exceed 400 psig

(27,6 bar). Local codes and standards may require

approval by an appropriate authority prior to installation.



  The machine-lapped,

at-face seating surfaces featured in the

Type 92C regulator and Type 6392 pilot design

have been time-proven to minimize seat leakage

when downstream demand is zero and the regulator

is shutoff.

W3110

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W3111-2



Figure 1. Type 92C Pressure Regulator

Summary of content (16 pages)

PAGE 1
Bulletin 71.2:92C November 2009 Type 92C Self-Powered Control Valve W3111-2 W3110 Type 92C Pressure-Loaded Control Valve Type 92C Self-Powered Control Valve with Type 6392 Pilot Figure 1. Type 92C Pressure Regulator Introduction The Type 92C regulator (Figure 1) is an economical cast iron, steel, or stainless steel pressure-reducing regulator used in steam, liquid or hot air service.
PAGE 2
Bulletin 71.
PAGE 3
Bulletin 71.
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Bulletin 71.2:92C PILOT REGULATOR SPRING PILOT DIAPHRAGM PILOT SUPPLY DOWNSTREAM BLEED HOLE PILOT VALVE PLUG PILOT VALVE SPRING DOWNTREAM CONTROL LINE MAIN VALVE DIAPHARGM PITOT TUBE MAIN VALVE PLUG MAIN VALVE SPRING A6618 inlet pressure outlet pressure atmospheric pressure loading pressure Note: Pilot is shown here above the main valve body for illustration purposes only. See figures 1 and 8 for actual pilot position and appearance of pilot supply line and loading-pressure tubing. Figure 2.
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Bulletin 71.2:92C bleed restriction loading regulator optional piping for steam loading main valve diaphragm pitot tube MAIN VALVE PLUG 36A1546-B A2946 MAIN VALVE SPRING inlet pressure outlet pressure loading pressure Figure 3. Type 92C Pressure-Loaded Control Valve Operational Schematic Principle of Operation Pilot-Operated Regulator Refer to the schematic in Figure 2. Pilot supply pressure is piped from the inlet side of the main valve to the pilot inlet connection.
PAGE 6
Bulletin 71.2:92C type 6492HM safety override pilot type 6392 pilot type 6392 pilot type 92c main valve type 92C main valve EO557 inlet pressure outlet pressure atmospheric pressure loading pressure intermediate pressure Figure 4. Type 92C with Type 6492HM Safety Override Pilot Operational Schematic Table 4.
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Bulletin 71.2:92C pressure drop across valve (bar) 2,00 4,00 10,0 8,00 6,00 12,0 3/4-inch (19 mm) orifice size diaphragm differential (PSI) 15 1,00 10 0,50 9/16-inch (14 mm) orifice size 5 0 100 50 150 diaphragm differential (bar) 20 200 pressure drop across valve (PSI) 26A3808-A A2508-2 note: to determine required loading pressure, add the diaphragm differential pressure to the desired outlet pressure setting Figure 5.
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Bulletin 71.2:92C Capacity Information Steam Capacities Typical regulating capacities in pounds of saturated steam per hour are shown in Table 5 for pilot-operated regulators. A typical performance curve is shown in Figure 6. To determine capacities for pressure-loaded regulators, multiply the appropriate Table 5 value by the capacity factor listed in Table 7. Cv = Valve sizing coefficient (see Table 6) G = Specific Gravity 1.
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Bulletin 71.2:92C Table 5.
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Bulletin 71.2:92C Table 5.
PAGE 11
Bulletin 71.2:92C Table 6.
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Bulletin 71.2:92C 190 13,0 typical performance NPS 1 (DN 25) type 92C 3/4-inch (19 mm) orifice size outlet pressure (Psi) 170 12,0 160 11,0 150 10,0 140 130 120 9,00 250 psig (17,2 bar) 200 psig (13,8 bar) 300 psig (20,7 bar) 8,00 175 psig (12,1 bar) 110 outlet pressure (bar) 180 7,00 100 0 500 (227) 1000 (454) 1500 (680) 2000 (907) 2500 (1134) 3000 (1361) 3500 (1588) 4000 (1814) 26A3807-A A2509-2 flow rate (Pounds PER HOUR saturated steam) (Kg/h) notes: 1.
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Bulletin 71.2:92C 7.81 (198) 1/2, 3/4, 1 npt 6.06 (154) diameter 4.56 (116) 0.25 (6,4) 1/4 npt downstream control line connection 2.25 (57,2) 4.88 (124) inches (mm) 16A3176-D A2512-2 Figure 7.
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Bulletin 71.2:92C Ordering Information Regulator When ordering, specify: Refer to the Specifications section on pages 2 and 3. Review the descriptions to the right of each specification and indicate the desired choice wherever there is a selection to be made. Application 1. Range of temperatures 2. Range of inlet pressures (maximum, normal, minimum) 3. Outlet pressure setting 4. Range of flow rates (maximum, normal, minimum controlled) 5. Body size 6.
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Bulletin 71.2:92C Ordering Guide (continued) Override Pilot Spring Ranges (if applicable) (Select One) Type 6492HM 10 to 30 psig (0,69 to 2,1 bar) 25 to 75 psig (1,7 to 5,2 bar) 70 to 150 psig (4,83 to 10,3 bar) Type 6492HTM 15 to 100 psig (1,0 to 6,9 bar) 80 to 250 psig (5,5 to 17,2 bar) Pressure Loading Supply (Optional) Yes (Type 670 panel loader)** Main Valve Replacement Parts Kit (Optional) Yes, send one replacement parts kit to match this order.
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Bulletin 71.2:92C Industrial Regulators Natural Gas Technologies TESCOM Emerson Process Management Regulator Technologies, Inc. Emerson Process Management Regulator Technologies, Inc. Emerson Process Management Tescom Corporation USA - Headquarters McKinney, Texas 75069-1872 USA Tel: 1-800-558-5853 Outside U.S. 1-972-548-3574 USA - Headquarters McKinney, Texas 75069-1872 USA Tel: 1-800-558-5853 Outside U.S.