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Figure 2

. Typical Heater Installation

COLD WATER

SUPPLY

THERMOSTAT

CHECK

VALVE

HOT WATER

SERVICE

SAFETY

VALVE

FROM CIRCULATING PUMP

DRAIN

STRAINER

F AND T

STEAM TRAP

QUICK VENT

AIR VALVE AND

VACUUM BREAKER

INSTANTANEOUS HEATER

TO RETURN

CONTROL

PIPE

GATE

VALVE

GATE

VALVE

GATE VALVE

STRAINER

STEAM

TRAP

INITIAL PRESSURE

TYPE ET124 OR ET134

TEMPERATURE REGULATOR

DO NOT INSULATE

BELOW THIS LINE

Figure 3

. Type T124 Tubing Bends Connection

PILOT

FLEXIBLE

ARMORED TUBING

TEMPERATURE

ADJUSTING SPRING

COWL BRACKET

SET SCREW

PRESSURE

LIMIT SPRING

DELIVERY PRESSURE

ADJUSTMENT SCREW

1/4" CONTROL PIPE

1/4" UNION

RESTRICTION BEND

MAIN VALVE

TYPE E OR E2

NO. 4A BLEED PORT

NO. 8B

TEE

BLEED PORT BEND

TEMPERATURE ADJUSTING

HAND WHEEL

THERMOSTAT BULB

Types T124 and T134

Содержание T124

Страница 1: ... and T134 Introduction Scope of the Manual This manual provides instructions for installation maintenance and parts information for the Types T124 and T134 temperature pilot Product Description The steam pressure reducing valve and temperature regulator in a single pilot operated valve is a combination of Type T124 or T134 Pilot and a Type E or C Main Valve Steam pressure is modulated in proportio...

Страница 2: ...g The pilot is opened by compressing the pressure limit spring When steam is turned on it flows to the pilot through the connecting nipple and union see Figure 2 At No 8B tee on the pilot outlet the flow divides One branch is connected to bleedport No 4A and the other to restriction elbow No 5A and the underside of the main valve diaphragm Bleedport No 4A restricts the flow builds pressure under t...

Страница 3: ...ALVE STRAINER STEAM TRAP INITIAL PRESSURE TYPE ET124 OR ET134 TEMPERATURE REGULATOR DO NOT INSULATE BELOW THIS LINE Figure 3 Type T124 Tubing Bends Connection PILOT FLEXIBLE ARMORED TUBING TEMPERATURE ADJUSTING SPRING COWL BRACKET SET SCREW PRESSURE LIMIT SPRING DELIVERY PRESSURE ADJUSTMENT SCREW 1 4 CONTROL PIPE 1 4 UNION RESTRICTION BEND MAIN VALVE TYPE E OR E2 NO 4A BLEED PORT NO 8B TEE BLEED P...

Страница 4: ...ately designed and supported to prevent extraordinary loads to the pressure equipment Planning 1 Locate the regulator in a horizontal pipe Provide a trap ahead of the regulator to prevent water hammer and erratic operation 2 Use a strainer to avoid damaging effects of scale and dirt in pipelines to protect the regulator 3 Provide a three valve bypass to facilitate inspection of the regulator witho...

Страница 5: ...applied to the upper portion globe and flanges of the main valve Do not insulate the diaphragm chamber or any part of pilot See Figure 2 Start up and Setting WARNING The pilot may be handling hazardous fluids Only qualified personnel who are familiar with the installation should be permitted to install readjust inspect or maintain the pilot CAUTION Insulation may be applied to the pilot body only ...

Страница 6: ... flange bolts key 7 and take off the blind flange key 26 Remove the screen key 46 and gasket key 45 3 Hold the pusher plate key 41 with a socket wrench and remove stem nuts key 25 The disk key 24 will drop off 4 Lift out the stem key 22 and valve spring key 43 Assembly 1 Reassemble the pilot in the reverse of the Dismantling procedure 2 Ensure that diaphragm screw key 37 and cowl bracket key 19 ar...

Страница 7: ...n bulbs at this temperature during replacement process 2 Back off temperature adjusting wheel key 14 to within a turn or two of the barrel nut key 1 Back off pressure adjusting screw key 20 to remove all compression from spring This will allow temperature diaphragm plate key 7 to remain seated in correct alignment on balls key 10 after disengagement of thermostat assembly Unless pilot is upright b...

Страница 8: ...ous heater outlet 4 Thermostat may be kinked or broken or have lost its fill Alternately warm and cool thermostat 10 F 12 C above and below its set point If thermostat is operative the pin between the lever and pressure diaphragm will become loose and snug as the temperature stem on opposite end of the lever moves up and down 5 Orifice in bleedport may be plugged 6 A lift of condensate to a hot we...

Страница 9: ...el WAL04 04057 90 Composition Disk 303 Stainless steel WAL04 04060 00 24 Disk Standard 440 CH WAL04 01772 90 Composition Disk Brass Hycar WAL07 53512 00 25 Stem Nut Steel WAL05 02888 00 Brass WAL05 02886 00 26 Blind Flange Cast Iron WAL04 02151 00 Cast Steel WAL04 11678 00 27 Blind Flange Bolt Steel and Iron WAL05 04803 00 Steel and Steel WAL05 11720 00 28 Temperature Plate Center Ledloy WAL04 037...

Страница 10: ... E F TYPE T134 SIDE VIEW FRONT VIEW Figure 6 Type T124 Assembly THERMOSTAT ASSEMBLY VARIES 1 8 NPT 10 Types T124 and T134 ...

Страница 11: ...COMPOSITION DISK ADJUSTMENT INDICATOR Figure 7 Type T124 Options Assembly 11 Types T124 and T134 ...

Страница 12: ...ding the products or services described herein or their use or applicability All sales are governed by our terms and conditions which are available upon request We reserve the right to modify or improve the designs or specifications of such products at any time without notice Emerson Electric Co does not assume responsibility for the selection use or maintenance of any product Responsibility for p...

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