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44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวีวัฒนา กทม. 10170. 

website: 

https://www.add-furnace.com/

  โทร: 02-888-3472 

Line ID: @add11 e-mail: [email protected] 

 
 
 
 

2.  If it is necessary to adjust the regulator:

 

•  Loosen the locknut (key 13).

 

•  Turn the adjusting screw (key 12) while monitoring

 

Disassembly

 

 
 

 

note

 

the pressure. Turn clockwise to increase the set 
pressure; turn counterclockwise to decrease the 
set pressure.

 

•  Tighten the locknut after adjustment is made.

 

 

 

Shutdown

 

1. 

lose the upstream shutoff valve.

 

2. 

lose the downstream shutoff valve.

 

3.  If vent valves are installed, open the vent valve 

between the regulator and the downstream shutoff 
valve. Then, open the vent valve between the 
regulator and the upstream shutoff valve.

 

4.  If vent valves are not installed, safely bleed off 

both inlet and outlet pressures, and check that the 
regulator contains no pressure.

 

 

 

Maintenance

 

Regulator parts are subject to normal wear and must be 
inspected and replaced as necessary.  The frequency 
of inspection and replacement of parts depends

 

upon the severity of service conditions as well as the 
requirements of local, state, and federal regulations.

 

 

  

WaRnIng 

 

 

To avoid personal injury or equipment 
damage from sudden release of 
pressure or explosion of accumulated 
gas, do not attempt any maintenance or 
disassembly without first isolating the 
regulator from system pressure

 

and relieving all internal pressure from 
the regulator.

 

The body assembly (key 1) may remain 
mounted in a line or panel or on other 
equipment during disassembly as long 
as the entire regulator does not have to 
be replaced.

 

 

The following procedure describes how to completely 
disassemble the regulator.  When part replacement 
or inspection is required, complete only those steps 
necessary to accomplish the task, and then start the 
assembly at the appropriate step. Key numbers are 
referenced in Figure 2.

 

 

1.  Remove closing cap (not shown), if used.

 

2.  Loosen locknut (key 13), and turn adjusting 

screw (key 12) counterclockwise so that spring 
tension is relieved.

 

3.  Remove the cap screws and nuts (keys 14 and 15) 

that hold the spring case (key 2) on the body (key 1). 
Then, remove the spring case, regulator spring (key 4), 
and upper spring seat (key 11).

 

4.  Remove the diaphragm assembly (key 9).

 

5.  Unscrew and remove the stem guide (key 8) from 

the valve body.

 

6.  Remove the stem seal O-ring (key 5) from the 

body. If the O-ring is to be replaced, it should be 
lubricated.

 

7.  Unscrew the body plug (key 10). This permits 

removal of the valve spring (key 3) and the disk holder 
assembly (key 6).

 

 

Spring Installation

 

Reassemble in the reverse of the above procedures.

 

1.  Lubricate the upper spring seat and the exposed 

threads of the adjusting screw with Anti-Seize lubricant.

 

Summary of Contents for Fisher 64 Series

Page 1: ...sually are shipped separately for line or panel mounting or installed on other equipment Instructions and parts lists for other equipment are found in separatemanuals Product Description The 64 Series regulators are spring loaded direct operated devices typically used to deliver constant reduced pressure of gaseous fluids to pilot operated controllers and other pneumatic instrumentation Type 64 Ba...

Page 2: ...le standard limitation should not be exceeded The Type 64R has an integral low capacity relief valve The valve stem seats against a drilled hole in the diaphragm plate If the reduced pressure should exceed the set pressure the diaphragm lifts off the valve stem so that a limited amount of excess pressure can flow into the spring case and bleed out through a screened vent A 64 Series regulator is a...

Page 3: ...y WaRnIng If using this regulator on hazardous gas or flammable fluid make sure that the vented gas is piped to a safe well ventilated area Do not install a regulator so that the gas will be vented into a closed space This could result in a fire or explosion which could cause personal injury or equipment damage 4 Toremotely vent the spring case remove the screen if present and connect 1 4 inch NPT...

Page 4: ...ed gas do not attempt any maintenance or disassembly without first isolating the regulator from system pressure and relieving all internal pressure from the regulator The body assembly key 1 may remain mounted in a line or panel or on other equipment during disassembly as long as the entire regulator does not have to be replaced The following procedure describes how to completely disassemble the r...

Page 5: ...bar Type 64 R64X0000H22 Type 64R R64RX000H22 1 Body aluminum T1063708012 Key Description Part number 2 Spring ase For use with adjustingscrew aluminum 2P901508012 For use with handwheel aluminum 1F8095000A2 For panel mounting cast iron 2E542919042 3 Valve Plug Spring steel Types 64 and 64R 1D666827222 Type 64B T1114337022 NA E heat treated Inconel 1 19A2859X012 4 ontrol Spring See Table 1 5 O Ring...

Page 6: ...วัฒนา กทม 10170 website https www add furnace com โทร 02 888 3472 Line ID add11 e mail add028883472 gmail com HanDWHEEl aDjuSTIng SCREW HanDWHEEl aDjuSTIng SCREW FOR PanEl MOunTIng AH9113 E 10A6399 A AN9265 D B1471 Figure 2 Type 64R Regulator Assembly ...

Page 7: ... Screw ap for cast iron spring case only not shown 20B3082X012 24 Drive Screw plated steel 4 required forcast iron spring case 1E501728982 25 Gauge See Table 2 27 Locknut aluminum for cast iron spring case 1N936009012 42 NA E Tag 18 8 stainless steel not shown 19A6034X012 43 Tag Wire 304 stainless steel not shown 1U7581X0022 Optional 657 or 667 Series actuator Mounting Parts not shown Key Descript...

Page 8: ... บริษัท บริษัท เอดีดี เฟอร เนส จำกัด Add Furnace Co Ltd ที อยู bangkok 44 ซ บรมราชชนนี 70 ถ บรมราชชนนี ศาลาธรรมสพน ทวีวัฒนา กทม 10170 website https www add furnace com e mail sales add furnace com add028883472 gmail com โทร ออกแบบ 08 08 170 170 088 300 1122 โทร 02 888 3472 Online Support Line ID add11 Wechat ID add0883001122 แฟกซ 02 888 3258 line ID add11 ...

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