Page 1
Instruction Manual
Form 5481
February 2009
Type 289P Pilot-Operated Relief Valve
Type 289P
W6834
Figure 1. NPS 1 Type 289P Pilot-Operated Relief Valve Figure 2. NPS 2 Type 289P Pilot-Operated Relief Valve
W3167-2
Introduction
Scope of Manual
This manual describes and provides instructions
and parts lists for the Type 289P pilot-operated relief
valve. Instructions and parts lists for any other Fisher®
equipment used with this relief valve will be found in
separate manuals.
Product Description
The Type 289P pilot-operated relief valve is used to
provide protection from overpressuring a downstream
system. This relief valve is suitable for service on
natural gas, air, propane, or any other operating
medium not corrosive to the internal parts. Smooth
opening action minimizes system pressure surges
during emergency action. Very little build-up over set
pressure is required to completely open the main valve
for maximum relief capacity. The external control line
provides quick, accurate pressure registration.
Specications
Some of the specications for a given relief valve as
it comes from the factory appear on the nameplate
attached to the Type 289P main valve spring case.
Other specications appear on the Type 6358B or
6365 pilot spring case.
www.emersonprocess.com/regulators
D102680X012
Page 2
Type 289P
Specications
Body Size and End Connection Style
NPS 1 or 2, NPT
Maximum Relief (Inlet) Pressure
NPS 1: 50 psig (3,4 bar) over relief set
pressure or 110 psig (7,6 bar) whichever is lower
NPS 2: 15 psig (1,0 bar)
Relief Set Pressure Ranges
See Table 1
Pilot Information
See Tables 2 and 3
1. Relief pressure plus maximum allowable build-up over setting.
2. The pressure/temperature limits in this manual and any applicable standard or code limitation should not be exceeded.
WARNING
!
To avoid injury or damage, install,
operate, and maintain the Type 289P in
accordance with federal, state, and local
codes; rules and regulations; and these
instructions. The Type 289P cannot be
used as ASME safety relief valves.
Only a qualied person must install or
service the relief valve. Be certain the
main valve nameplate or pilot spring case
is updated to accurately indicate any eld
changes in equipment, materials, service
conditions or pressure settings.
If a leak develops in the system, it
indicates that service is required. Failure
to correct the situation immediately may
create a hazardous condition.
(1)(2)
Principle of Operation (Figure 3)
Inlet pressure registers on the underside of the main
valve diaphragm and underside of the pilot diaphragm.
As long as the inlet pressure is below the set pressure,
the pilot control spring keeps the pilot valve plug
closed. Inlet pressure passes through the pilot
restriction and registers as loading pressure on top of
the main valve diaphragm, keeping it closed.
When inlet pressure rises above the set pressure, the
pressure on the pilot diaphragm overcomes the pilot
control spring and opens the pilot valve plug. The
pilot exhausts the loading pressure from the top of the
Pressure Registration
External
Pilot Control Line and Vent Connections
1/4 NPT
Relief Valve Temperature Capabilities
With Nitrile (NBR): -20° to 180°F (-29° to 82°C)
With Fluorocarbon (FKM):
0° to 300°F (-18° to 149°C)
Approximate Weights
NPS 1: 5 pounds (2 kg)
NPS 2: 15 pounds (7 kg)
main valve diaphragm and plug assembly. While inlet
pressure is above the set pressure, the pilot continuously
exhausts gas. Inlet pressure unbalance overcomes the
main spring force and opens the main valve.
As the inlet pressure drops, the pilot control spring begins
to close the pilot valve plug and the exhaust slows. This
causes the inlet pressure to build in the main valve
diaphragm casing, allowing the control spring to close
the main valve. Once the main valve is closed, the pilot
valve plug closes and the exhaust stops.
Installation
Personal injury or system damage may
result if this relief valve is installed
where service conditions could exceed
the limits given on the pilot spring case
or main valve nameplate. Installations
should be adequately protected from
physical damage.
Overpressuring any portion of this
equipment may cause equipment
damage, leaks in the relief valve, or
personal injury due to bursting of
pressure-containing parts. System
operation within the Specications
section does not eliminate the
possibility of damage from external
sources or debris in the pipeline.
The relief valve should be inspected
for damage regularly and after any
overpressure condition.
WARNING
!
(2)
2
Page 3
Type 289P
HOLLOW PASSAGE
IN VALVE PLUG STEM
UPPER PORTION
OF VALVE PLUG
LOWER PORTION
OF VALVE PLUG
EXPANDED VIEW OF THE TYPE 6358B
DIAPHRAGM ASSEMBLY AND VALVE PLUG
(FOR USE WITH NPS 1 AND 2 BODY SIZES)
INLET (CONTROLLED) PRESSURE
LOADING PRESSURE
OUTLET (EXHAUST) PRESSURE
ATMOSPHERIC PRESSURE
DIAPHRAGM
ASSEMBLY
DIAPHRAGM
ASSEMBLY
FIXED RESTRICTION
TO MAIN VALVE
DIAPHRAGM
TO EXHAUST PORT
NPS 1 TYPE 289P WITH TYPE 6358B PILOT
FIXED
RESTRICTION
TO MAIN VALVE
DIAPHRAGM
EXPANDED VIEW OF THE TYPE 6365 PILOT
DIAPHRAGM ASSEMBLY AND VALVE PLUG
(FOR USE WITH NPS 2 BODY SIZE ONLY)
INLET (CONTROLLED) PRESSURE
LOADING PRESSURE
OUTLET (EXHAUST) PRESSURE
ATMOSPHERIC PRESSURE
TO EXHAUST PORT
VALVE PLUG
NPS 2 TYPE 289P WITH TYPE 6358B PILOT
Figure 3. Type 289P Operational Schematics
3
Page 4
Type 289P
Table 1. Relief Set Pressure Ranges and Pilot Control Spring Infromation
MAIN VALVE
BODY SIZE,
NPS
1 6358B
2
PILOT
TYPE
6365 14-inches w.c. to 2 psig (35 mbar to 0,14 bar) 14A9672X012 Yellow 0.070 (1,78) 2.125 (54,0)
6358B 2 to 10 psig (0,14 to 0,69 bar) 14A9673X012 Black 0.102 (2,59) 2.125 (54,0)
RELIEF SET
PRESSURE RANGE
10 to 18 psig
18 to 30 psig
30 to 100 psig
(0,69 to 1,2 bar)
(1,2 to 2,1 bar)
(2,1 to 6,9 bar)
Before installing, inspect the main valve and pilot for
any shipment damage and any foreign material. Make
sure that the valve is oriented so that pipeline ow
enters the port labeled inlet. Apply pipe compound on
the pipe threads, but not on the body threads.
The typical pilot mounting position is shown in
Figures 1 and 2. To achieve other desired connections,
the pilot may be rotated on the pipe nipple.
The Type 289P requires a control line attached to the
1/4 NPT control connection. The control line should
be 3/8-inch (9,5 mm) outer diameter pipe or tubing or
larger and connected to a straight run of inlet piping.
If the pipeline contains dirt, install a lter in the control
line and/or upstream piping.
PILOT CONTROL SPRING INFORMATION
Part Number Color
1B986027212
1B788327022
1K748527202
Green
Unpainted
Red
Wire Diameter,
Inches (mm)
0.120
(3,05)
0.142
(3,61)
0.187
(4,75)
Free Length,
Inches (mm)
2.125
(54,0)
2.125
(54,0)
2.125
(54,0)
Note
Do not adjust the main valve spring.
Startup and Shutdown
With proper installation complete, slowly open
the upstream shutoff valve while using a gauge to
monitor inlet pressure to startup the relief valve or
backpressure regulator. If set pressure adjustment is
necessary, see the Pilot Adjustment section.
To shutdown, slowly close the upstream shutoff valves.
Release all pressure from the main valve and pilot by
opening a vent valve.
WARNING
!
If venting gas will accumulate and be
an explosion hazard under enclosed
conditions, such as in pit or underground
installations, make sure the installation
is remotely vented to a safe location.
To avoid possible injury or equipment
damage, never adjust the pilot control
spring to produce a set pressure higher
than the upper limit of the set pressure
range for that particular spring.
If it is necessary to vent the unit, install a 3/8-inch
(9,5 mm) exhaust line into the 3/8 NPT pilot exhaust
connection. This exhaust line may be vented directly
into the main valve outlet or separately to atmosphere.
In either case, the vent line or stack diameter should be
as large as practical with a minimum number of bends or
other restrictions.
A vent line or stack must be located to avoid venting
gas near buildings, air intakes, or any hazardous
location. The line or stack opening must be protected
against debris, weather, condensation, insects, or
anything else that might clog it.
Pilot Adjustment (See Figure 6 or 7)
If outlet pressure adjustment is necessary, monitor relief
(inlet) pressure with a gauge during the adjustment
procedure. Remove the pilot closing cap (key 12)
and loosen the locknut (key 11). Turn the adjusting
screw (key 10) into the spring case to increase the set
pressure. Turn the adjusting screw out of the spring
case to decrease the set pressure. When adjustment
is completed, tighten the locknut to lock the adjusting
screw in position and replace the pilot closing cap.
Maintenance
Relief valve parts are subject to normal wear and must
be inspected and maintained as necessary, depending
upon the service conditions.
WARNING
!
Avoid personal injury or damage
to property from sudden release
of pressure or uncontrolled gas or
other process uid. Before starting
to disassemble, carefully release all
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Page 5
Table 2. NPS 1 Main Valve Capacities and Type 6358B Pilot Information
MAIN VALVE SPRING,
PART NUMBER, AND
COLOR, PSIG (bar)
For set pressures up to
30 (2,1)
1F826927052
Pink
For set pressures over
30 (2,1)
1D892327022
Red
1. Set pressure is dened as the pressure at which the pilot exhaust starts to bubble (discharge).
2. Crack pressure is the inlet pressure at which the main valve starts audible ow.
3. Inlet pressure build-up over the set pressure to achieve wide-open capacity.
SET PRESSURE
RANGE,
PSIG (bar)
10 to 18
(0,69 to 1,2)
18 to 30
(1,2 to 2,1)
30 to 100
(2,1 to 6,9)
SET PRESSURE
PSIG (bar)
10
(0,69)
15
(1,0)
18
(1,2)
18
(1,2)
25
(1,7)
30
(2,1)
30
(2,1)
40
(2,8)
50
(3,4)
60
(4,1)
70
(4,8)
80
(5,5)
90
(6,2)
100
(6,9)
(1)
BUILD-UP OVER
,
SET PRESSURE TO
BEGIN OPENING MAIN
VALVE
Table 3. NPS 2 Main Valve Capacities and Types 6365 and 6358B Pilot Information
PILOT
TYPE
6365
6358B
1. Set pressure is dened as the pressure at which the pilot exhaust starts to bubble (discharge).
2. Crack pressure is the inlet pressure at which the main valve starts audible ow.
3. Inlet pressure build-up over the set pressure to achieve wide-open capacity.
RELIEF SET PRESSURE
RANGE, SPRING PART
NUMBER, AND COLOR
14-inches w.c. to 2 psig
(35 mbar to 0,14 bar)
14A9672X012
Yellow
2 to 10 psig
(0,14 to 0,69 bar)
14A9673X012
Black
SET PRESSURE
PSIG (bar)
0.5
1.0
1.5
2.0
2.0
4.0
6.0
8.0
10.0
(0,03)
(0,07)
(0,10)
(0,14)
(0,14)
(0,28)
(0,41)
(0,55)
(0,69)
(1)
,
(2)
, PSIG (bar)
0.8
(0,05)
0.8
(0,05)
0.8
(0,05)
0.9
(0,06)
0.9
(0,06)
0.9
(0,06)
1.4
(0,10)
1.4
(0,10)
1.4
(0,10)
1.4
(0,10)
1.6
(0,11)
1.6
(0,11)
1.6
(0,11)
1.6
(0,11)
BUILD-UP OVER SET
PRESSURE TO FULLY OPEN
MAIN VALVE
TO FULLY OPEN MAIN
VALVE
(3)
, PSIG (bar)
0.25
(0,017)
0.25
(0,017)
0.25
(0,017)
0.25
(0,017)
0.30
(0,021)
0.30
(0,021)
0.30
(0,021)
0.30
(0,021)
0.30
(0,021)
BUILD-UP OVER
SET PRESSURE
(3)
, PSIG (bar)
1.0
(0,07)
1.0
(0,07)
1.0
(0,07)
1.2
(0,08)
1.2
(0,08)
1.2
(0,08)
1.9
(0,13)
1.9
(0,13)
1.9
(0,13)
1.9
(0,13)
2.1
(0,14)
2.1
(0,14)
2.1
(0,14)
2.1
(0,14)
Type 289P
PRESSURE DROP
BELOW SET PRESSURE
TO RESEAT PILOT,
PSIG (bar)
1.0
(0,07)
1.0
(0,07)
1.0
(0,07)
1.0
(0,07)
1.0
(0,07)
1.0
(0,07)
1.0
(0,07)
1.0
(0,07)
1.0
(0,07)
1.0
(0,07)
1.0
(0,07)
1.0
(0,07)
1.0
(0,07)
1.0
(0,07)
PRESSURE DROP BELOW SET
PRESSURE TO RESEAT PILOT,
PSIG (bar)
0.25
(0,017)
0.25
(0,017)
0.25
(0,017)
0.25
(0,017)
0.30
(0,021)
0.30
(0,021)
0.30
(0,021)
0.30
(0,021)
0.30
(0,021)
pressures according to the shutdown
procedure. Use gauges to monitor inlet,
loading, and outlet pressures while
releasing these pressures.
NPS 1 Type 289P Main Valve
This procedure is to be performed if inspecting
or replacing main valve parts. Key numbers are
referenced in Figure 4.
Note
The main valve body (key 1) may remain
in the line during maintenance. Lightly
lubricate O-rings before assembly.
Disassembly
1. Loosen the set screw (key 6) to remove
spring compression.
2. Remove the screws (key 8) and remove the spring
case (key 2), spring (key 7), and spring seat (key 4).
3. Remove the screws (key 29) from the stem guide
assembly (key 31). Lift out the diaphragm (key 5)
and trim assembly.
4. Unscrew the hex nut (key 24) and remove the lower
spring guide (key 17), diaphragm head (key 3), and
inspect diaphragm (key 5).
5. Slide the washer (key 27), gasket (key 19), stem
guide assembly (key 31), and bushing (key 23) from
the pitot tube (key 18).
6. Remove the upper O-ring (key 30), O-ring holder
(key 21), O-ring (key 20), O-ring washer (key 22),
and lower O-ring (key 30) from around the pitot tube
(key 18).
7. Inspect and replace parts as necessary.
5
Page 6
Type 289P
Assembly
1. Replace the O-ring (key 37). Slide the lower O-ring
(key 30), O-ring washer (key 22), O-ring (key 20),
O-ring holder (key 21), upper O-ring (key 30), bushing
(key 23), stem guide assembly (key 31), gasket
(key 19), and washer (key 27) on to the pitot tube
(key 18).
2. Slide the diaphragm head (key 3) and lower spring
guide (key 17) into the pitot tube. Tighten the hex
nut (key 24).
3. Replace machine screws (key 29).
4. Position the diaphragm (key 5) so the holes line up
with those in the body (key 1).
5. Replace the spring (key 7), spring seat (key 4),
and spring case (key 2).
6. Compress the spring slightly with the adjusting
screw (key 6) to ensure there are no wrinkles in
the diaphragm.
7. Tighten the screws (key 8) in a crisscross pattern.
Tighten the adjusting screw (key 6) until it is snug.
NPS 2 Type 289P Main Valve
This procedure is to be performed if inspecting,
cleaning, or replacing the main valve parts. Key
numbers and thread lubrication requirements are
indicated in Figure 5.
Note
The body (key 1) may remain in the
pipeline during maintenance. The pilot
control line and, if used, the remote
vent piping must be removed before
removing the main valve spring case.
1. Remove the closing cap (key 14), and loosen
the adjusting screw (key 6) to remove
spring compression.
2. Unscrew the cap screws (key 8), and remove the
spring case (key 2) and spring (key 7).
3. Lift the edges of the diaphragm (key 5), and remove
the machine screws (key 29), securing the stem
guide assembly (key 31).
4. Remove the stem guide assembly. The diaphragm
assembly (keys 3, 17, 5, and 26) and the pitot tube
(key 18) and associated parts (keys 19, 22, 23, 11,
and 25) will lift out with the stem guide assembly.
5. Inspect the parts removed in step 4. If part
replacement is necessary, unscrew the hex nut
(key 11), and separate the parts one piece at a time.
6. Assemble the parts using new gaskets (key 19).
Also replace the diaphragm (key 5), if necessary.
During assembly, use lubricants or sealants on the
parts indicated in Figure 5. The following parts are
listed in the order with which they are placed on the
pitot tube (key 18):
• One gasket (key 19)
• O-ring washer (key 22)
• Another gasket (key 19)
• Stem guide assembly (key 31) secured
with screws (key 29)
• The third gasket (key 19)
• Lower diaphragm plate (key 26)
• Diaphragm (key 5), install pattern side up,
toward the spring (key 7)
• Diaphragm plate (key 3)
• Lower spring seat (key 17)
• Hex nut (key 11) Tighten the hex nut.
7. Inspect the O-ring (key 20) and orice (key 10).
To replace the orice, remove the O-ring and
unscrew the orice from the body (key 1). If only
the O-ring (key 20) is to be replaced, leave the
orice in the body (key 1). Coat the threads of the
orice with sealant, and screw it into the body. Coat
the O-ring with a lubricant, and place the O-ring in
the orice.
8. Position the diaphragm assembly and stem guide
assembly in the valve body (key 1) so that the
O-ring washer sits squarely on the O-ring and so that
the machine screw holes in the stem guide assembly
match the holes in the valve body. Insert and tighten
the machine screws (key 29).
9. Turn the diaphragm to line up with the spring case
cap screw holes.
10. Place the spring case (key 2) on the valve body.
Insert and tighten the cap screws (key 8).
11. Place the spring (key 7) on the lower spring seat.
12. Coat the adjusting screw (key 6) threads with a
suitable anti-seize compound. Thread the screw
into the spring case until top of adjusting screw is
1-inch (25 mm) above the spring case.
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Page 7
Type 289P
Type 6358B Pilot
Key numbers are referenced in Figure 6. The pilot may
remain on the pipe nipple (key 29) during maintenance.
Disassembly
1. Remove the closing cap (key 12), loosen the locknut
(key 11), and back out the adjusting screw (key 10) to
remove the spring (key 7) tension.
2. Remove the machine screws (key 17). Separate
the spring case (key 2) and body (key 1). Remove
the control spring seat (key 8) and the control spring
(key 7).
3. Lift out the diaphragm assembly (key 5) and valve
plug (key 4). Check the stem guide (key 9) and
restriction (key 20) for damage or plugging.
4. If necessary to replace the diaphragm assembly
(key 5), the valve plug (key 4), the valve spring
(key 14), or the stem O-ring (key 37), remove the
connector cap (key 6) and gasket (key 36) from the
top of the diaphragm assembly.
Assembly
Note
In step 7, if installing a control spring of
a different set pressure range, be sure
to remove the set pressure range on the
spring case and indicate the new range.
7. Place the control spring (key 7) and the control
spring seat (key 8) on the diaphragm assembly
(key 5).
8. Install the spring case (key 2) on the body (key 1)
with the vent assembly (key 16) oriented to prevent
clogging or entrance of moisture. Install the machine
screws (key 17) and tighten in a crisscross pattern,
using 5 to 7 foot-pounds (7 to 9 N•m) of torque.
9. Replace the closing cap gasket (key 19) if necessary,
and install the closing cap (key 12).
Type 6365 Pilot
Key numbers are referenced in Figure 7. The pilot may
remain on the pipe nipple (key 29) during maintenance.
Disassembly
1. If removed, install the body plug gasket (key 13) over
the body plug (key 3), and install the body plug into
the body (key 1).
2. Install the stem guide (key 9), if removed, and make
sure to install the gasket (key 36) between the body
(key 1) and the stem guide.
Note
In step 3, if installing a different size
restriction, be sure to remove the code
letter on the bottom of the pilot and
indicate the new letter.
3. If the restriction (key 20) was removed, coat the
threads with lubricant and install it.
4. If replacing the stem O-ring (key 37), sparingly apply
lubricant and install the O-ring over the valve plug
(key 4).
5. If removed, install the valve plug (key 4) and valve
spring (key 14) into the diaphragm assembly (key 5).
Place a new gasket (key 36) on the diaphragm
assembly, and secure with the connector cap
(key 6).
1. If necessary to check the outlet end of the body
cavity and the seating surfaces for moisture or
debris, remove the body plug (key 3) and body plug
gasket (key 13) from the body assembly (key 1).
2. Remove the closing cap (key 12), loosen the locknut
(key 11), and back out the adjusting screw (key 10)
to remove control spring (key 7) tension.
3. Remove the machine screws (key 17). Separate the
spring case (key 2) and body assembly (key 1).
Remove the control spring seat (key 8) and the
control spring (key 7).
4. Remove the diaphragm assembly (key 5) and
plug/stem assemblies (key 4). Make sure the
plug/stem guide (key 9) and the registration hole in
the pilot restriction (key 20), are not damaged
or plugged.
5. To replace the diaphragm assembly, the plug/stem
assembly, the plug/stem spring (key 14), remove the
connector cap and connector cap gasket (keys 6 and
36) from the top of the diaphragm assembly.
Assembly
6. Install the diaphragm assembly (key 5) and push
down on it to see if the valve plug (key 4) moves
smoothly. The diaphragm assembly should stroke
approximately 1/16-inch (1,6 mm) after the valve
plug contacts the port.
1. If removed, put the body plug gasket (key 13) over
the body plug (key 3). Place the body plug in
the body.
7
Page 8
Type 289P
2. Install the plug/stem guide (key 9) if it was removed.
3. Install the restriction plug (key 20) if it was removed.
4. If removed, install the plug/stem assembly (key 4)
and plug/stem spring (key 14) into the diaphragm
assembly (key 5). Install a replacement connector
cap gasket (key 36) on the diaphragm assembly
connector, and secure with the connector
cap (key 6).
5. Install the diaphragm assembly (key 5) and push
down on it to see if the plug/stem assembly
(key 4) strokes smoothly. The diaphragm assembly
should stroke approximately 1/16-inch (1,6 mm)
after the valve plug contacts the port.
Note
In step 6, if installing a control spring of
a different range from the one that was
removed, be sure to delete the spring
range originally appearing on the spring
case and indicate the new spring range.
6. Stack the control spring (key 7) and control spring
seat (key 8) onto the diaphragm assembly (key 5).
Key Description Part Number
3 Diaphragm Head, Aluminum 1D666428982
4 Spring Seat, Cadmium plated steel 1D667125072
5* Diaphragm, Nitrile (NBR) 24B5622X012
6 Adjusting Screw, Steel 1F710532982
7 Spring, steel
10 to 30 psig (0,69 to 2,1 bar) 1F826927022
30 to 100 psig (2,1 to 6,9 bar) 1D892327022
8 Machine Screw, Steel (8 required) 1A391724052
9 Screen, Monel
11* Gasket, Copper (2 required) 0Y008915042
13* Snap Ring, Carbon steel 13A9938X012
15 Gasket, Composite 13A9929X012
16 Nameplate, Aluminum - - - - - - - - - - -
17 Lower Spring Guide, Cadmium plated steel 1D666625072
18 Pitot tube, Aluminum 17A8789X012
19* Gasket, Composite 1F826804022
20* O-ring, Nitrile (NBR) 1F269206992
21 O-ring Holder, Aluminum 1F826409012
22 O-ring Washer, Aluminum 1F826509012
23 Spacer, 303 Stainless steel 14A9683X022
24 Hex Nut, Cadmium plated steel 1A499724122
27 Washer, Aluminum 1F826709012
28 Pipe Plug, Cadmium plated steel T13718T0012
29 Machine Screw, Steel (2 required) (not shown) 1H526928982
30* O-ring, Synthetic rubber (2 required) 1D687506992
31 Stem Guide Assembly
Zinc with 303 Stainless steel 1F8272X0012
Zinc with Brass 1F8272000A2
36 Pitot Tube Plug 1B561428982
37 O-ring, Nitrile (NBR) 1E216306992
(1)
1E564843122
7. Install the spring case (key 2) on the body (key 1)
with the vent assembly (key 16) oriented to prevent
clogging or entrance of moisture. Install the machine
screws (key 17) and, using a crisscross pattern,
torque them to 5 to 7 foot-pounds (7 to 9 N•m).
8. Tighten the locknut (key 11), replace the closing cap
gasket (key 19) if necessary, and install the closing
cap (key 12).
Parts Ordering
When corresponding with a local Sales Ofce
concerning this relief valve, include the type number
and all other pertinent information stamped on the pilot
spring and main valve nameplate. Specify the elevencharacter part number when ordering new parts from
the following parts list.
Parts List
NPS 1 Type 289P Main Valve (Figure 4)
Key Description Part Number
1 Body, Aluminum 3U888208012
2 Spring Case, Aluminum 2P901508012
*Recommended spare part.
1. Monel® is a marked owned by Special Metals Corporation.
NPS 2 Type 289P Main Valve (Figure 5)
Key Description Part Number
Parts Kits (Included are keys 5, 9, 15,
19, 20 and 38), Nitrile (NBR) R289HX00022
1 Valve Body, Cast iron 31B1992X012
2 Spring Case, Aluminum 3K129444022
3 Diaphragm Head, Plated steel 0W020225072
5* Diaphragm, Nitrile (NBR) 24B6447X012
6 Adjusting Screw, Zinc 1B537944012
7 Spring, Plated steel
14-inches to w.c. to 2 psig
(35 mbar to 0,14 bar), white 1B536427152
2 to 10 psig (0,14 to 0,69 bar), dark blue 1B536527052
8 Cap Screw, Plated carbon steel (8 required) 1A407824052
9* Screen 11B1994X012
10* Orice, Brass 1E702613012
11 Hex Nut, Zinc-plated steel 1A309324122
13 Snap Ring 10B9241X012
14 Closing Cap, Zinc T11069X0012
15* Gasket, Neoprene (CR) 1P753306992
17 Spring Seat, Zinc-plated steel 1D779925062
18 Stem, Brass 17A8788X012
19* Gasket, Composition (3 required) 1D779804022
20* O-Ring, Nitrile (NBR) 1P336106992
22 O-Ring Washer, Stainless steel 1E702136072
23 Spacer, Brass 1E702214172
24 Hex Nut, Plated carbon steel 1B228228982
26 Lower Diaphragm Head, Plated steel 1E703125072
27 Washer, Aluminum 1C680511032
28 Pipe Plug, Plated carbon steel T13718T0012
29 Machine Screw, Plated carbon steel (4 required) 1F386528992
31 Stem Guide Assembly, Cast iron plate 1E7028000A2
38* Gasket 11B1993X012
8
Page 9
AS - ANTI SEIZE
LS - LEAD SEAL
PARTS NOT SHOWN: 29
14A8406-D
AS
17
27
37
23
18
11
7
5
31
30
15
Figure 4. NPS 1 Type 289P Main Valve Assembly
Type 289P
6
2
4
LS
24
8
16
3
19
LS
28
21
20
22
1
9
13
29
28
14
2
6
7
17
3
15
25
27
24
11
8
31
5
19
26
23
20
22
10
18
1
38
26A0323-G
9
13
Figure 5. NPS 2 Type 289P Main Valve Assembly
9
Page 10
Type 289P
12
10
19
8
6
5
14
9
37
3
13
1
4
20
16
36
7
2
11
17
B2619-1
A6920
TYPE 6358B PILOT INTERIOR VIEW TYPE 6358B PILOT EXTERIOR VIEW
Figure 6. Type 6358B Pilot Assembly
Type 6358B Pilot (Figure 6)
Key Description Part Number
Parts Kit (includes keys 4, 5, 13, 14,
19, 36, and 37) R6358X00012
1 Pilot Body, Aluminum 39A0138X012
2 Spring Case, Aluminum 25A6220X012
3 Body Plug, Aluminum 1B797509032
4* Valve Plug and Stem Assembly
Nitrile (NBR) plug with stainless steel stem 14B6372X012
Fluorocarbon (FKM) plug with stainless
steel stem 16A2924X012
5* Diaphragm Assembly
Nitrile (NBR) 15A6216X072
Fluorocarbon (FKM) 15A6216X172
6 Connector Cap, Stainless steel 16A2921X012
7 Spring
10 to 18 psig (0,69 to 1,2 bar), green 1B986027212
18 to 30 psig (1,2 to 2,1 bar), unpainted 1B788327022
30 to 60 psig (2,1 to 4,1 bar), red 1B798525062
Key Description Part Number
8 Spring Seat, Zinc-plated steel 1B798525062
9 Stem Guide, Stainless steel 16A2923X012
10 Adjusting Screw 10B7192X012
11 Locknut 1A946324122
12 Closing Cap 23B9152X012
13* Body Plug Gasket or O-ring
Nitrile (NBR) 1C495704022
Fluorocarbon (FKM) 1N463906382
14 Valve Spring 17A2328X012
16 Vent Assembly, Type Y602X1-A12 (2 required) 27A5515X012
17 Machine Screw (6 required) 10B6189X022
20 Restriction
High gain 17A7270X012
36* Stem Guide Gasket,
Fluorocarbon (FKM) (2 required) 1U1716X0012
37 Stem O-ring
Nitrile (NBR) 16A2920X012
Fluorocarbon (FKM) 16A2920X022
* Recommended spare part
10
Page 11
Type 289P
1
13
3
17
16
2
12
11
10
8
6
14
20
4
19
7
36
5
9
TYPE 6365 PILOT INTERIOR VIEW TYPE 6365 PILOT EXTERIOR VIEW
Figure 7. Type 6365 Pilot Assembly
Type 6365 Pilot (Figure 7)
Key Description Part Number
Parts Kits (included are keys 4, 5, 13,
14, 19, and 36)
0.5 to 10 psig (0,03 to 0,69 bar) R6365X00012
1 Body Assembly, Aluminum 39A0138X012
2 Spring Case, Aluminum 25A6220X012
3 Body Plug, Aluminum 1B797509032
4* Plug/Stem Assembly
Nitrile (NBR) plug with stainless steel stem 19A0137X012
5* Diaphragm Assembly (includes heat-treated
416 Stainless steel diaphragm plate) 15A6216X182
6 Connector Cap, 18-8 Stainless steel 16A2921X012
7 Control Spring, Zinc-plated steel spring wire
14-inches w.c. to 2 psig (35 mbar to 0,14 bar) 14A9672X012
8 Spring Seat, Steel 1B798525062
Key Description Part Number
9 Plug/Stem Guide, Stainless steel 16A2923X012
10 Adjusting Screw, Plated steel 10B3692X012
11 Locknut, Zinc-plated steel 1A946324122
12 Closing Cap, Aluminum 23B9152X012
13* Body Plug Gasket, Composition 1C495704022
14* Plug/Stem Spring, Inconel
16 Type Y602-12 Vent Assembly, Plastic 27A5516X012
17 Machine Screw, Carbon steel (6 required) 10B6189X022
19* Closing Cap Gasket, Composition 15A6218X012
20 Restriction, Plated carbon steel
No. 70 drill size or 0.028-inch (0,71 mm)
diameter, standard (indicated by H for
high gain stamped on pilot body and
yellow color code) 17A7279X012
36* Connector Cap Gasket, Fluorocarbon (FKM) 1U1716X0012
(1)
X750 17A2328X012
* Recommended spare part
1. Inconel® is a marked owned by Special Metals Corporation.
11
Page 12
Type 289P
Industrial Regulators
Emerson Process Management
Regulator Technologies, Inc.
USA - Headquarters
McKinney, Texas 75069-1872 USA
Tel: 1-800-558-5853
Outside U.S. 1-972-548-3574
Asia-Pacic
Shanghai, China 201206
Tel: +86 21 2892 9000
Europe
Bologna, Italy 40013
Tel: +39 051 4190611
Middle East and Africa
Dubai, United Arab Emirates
Tel: +971 4811 8100
For further information visit www.emersonprocess.com/regulators
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business of Emerson Process Management.
The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed as warranties or
guarantees, express or implied, regarding the products or services described herein or their use or applicability. We reserve the right to modify or improve the designs or specications of such
products at any time without notice.
Emerson Process Management does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use and maintenance of any Emerson
Process Management product remains solely with the purchaser.
Natural Gas Technologies
Emerson Process Management
Regulator Technologies, Inc.
USA - Headquarters
McKinney, Texas 75069-1872 USA
Tel: 1-800-558-5853
Outside U.S. 1-972-548-3574
Asia-Pacic
Singapore, Singapore 128461
Tel: +65 6777 8211
Europe
Bologna, Italy 40013
Tel: +39 051 4190611
Gallardon, France 28320
Tel: +33 (0)2 37 33 47 00
TESCOM
Emerson Process Management
Tescom Corporation
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©Emerson Process Management Regulator Technologies, Inc., 1977, 2009; All Rights Reserved
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