Kimray 212 SMT PBT Istruzioni operative
PISTON BALANCED
THROTTLING
Repair Manual
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PISTON BALANCED THROTTLING REPAIR MANUAL
INDEX
Introduction .................................................................................................... 1
Elastomer Materials ....................................................................................... 2
Repair Kit Contents ........................................................................................ 3
Disassembly: Topworks Pressure Opens ..................................................... 5
Disassembly: Topworks Pressure Close ....................................................... 7
Disassembly: Piston & Body ......................................................................... 9
Cleaning & Inspection ................................................................................. 11
Assembly: Piston & Body ............................................................................ 13
Assembly: Topworks Pressure Opens ........................................................ 15
Assembly: Topworks Pressure Close ......................................................... 17
Testing ......................................................................................................... 19
NOTE: We reserve the right to modify or change, without prior
notice, any statement or information contained herein. If exact
dimensions or specifications are required by the customer
certified prints will be furnished for a minimum charge upon
request to KIMRAY, Inc.
® Copyright 2006, KIMRAY, Inc.
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PISTON BALANCED THROTTLING REPAIR MANUAL
INTRODUCTION
SCOPE
This repair manual contains information concerning the Piston Balanced Throttling Pressure Open/
Pressure Close low pressure motor valve. Included are detailed instructions regarding disassembly, repair,
assembly and testing.
DESCRIPTION
The PBT-PO/PC is a diaphragm operated motor valve designed to control or pressure in liquid or gas sys-
tems up to 400 psig with 15 to 30 psig pneumatic actuating signal. The piston balanced throttling motor valve
be used as oil or water dump valve, and for throttling service in back pressure or pressure reducing applica-
tions when installed with pressure pilots.
MAINTENANCE
Maintenance should be performed on a regular basis. Initial interval of 12 months is recommended. The
maintenance interval may increase or decrease depending on changing application environments.
WARNING
Before performing any service to regulator verify all system pressures are bled-off or pilot is properly iso-
lated and de-pressurized.
GENERAL SPECIFICATIONS
Working Pressures 125-300 Hydrostatic Test: ANSI B16.37
Body materials Grey Iron ASTM A48-94a Class 20
Ductile Iron ASTM A395 Class 65-45-12
Steel ASTM A216 WCB
Bonnet Materials Grey Iron ASTM A48-94a Class 20
Ductile Iron ASTM A395 Class 65-45-12
Steel ASTM A216 WCB
Body Types Thru
Connection Types Screw, Flange
Elastomers Buna-N (Nitrile)
To get the long service you have come to expect from Kimray products, always use GENUINE KIMRAY
PARTS when doing repairs. Remember, parts made to less than Kimray specifications don’t save you
money!!!
ENG-002.13 Issued 6/20
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PISTON BALANCED THROTTLING REPAIR MANUAL
ELASTOMER MATERIALS
TEMPERATURE:
-10° to +350° F
-23° to +177° C
APPLICATION:
Crude Oil & Gas Production, Glycol Dehydrators,
Gasoline, Jet Fuel & Diesel Fuel Pumping, Water Disposal,
Methanol Injection Pumps. (Also Vacuum Service) (Gas
permeability is very low)
FLUID / GAS:
Crude Oil & Gas, Sour Gas (C02), Propane, Gasoline,
Diesel, Fuel Oil Systems
DO NOT USE WITH:
Hot Water, Not preferred for wet H2S, Methyl Alcohol,
Amines, Sodium hydroxide solutions
TEMPERATURE:
-65° to +300° F
-54° to +148° C
APPLICATION:
Steam Flood
FLUID / GAS:
Steam, Water, Alcohol
DO NOT USE WITH:
Crude Oil & Gas, Diester Lubricants (Lube Oils)
TEMPERATURE:
-40° to +220° F
-40° to +104° C
APPLICATION:
High abrasion resistance Seats, Diaphragms
FLUID / GAS:
Crude Oil gas and Water, Sour Gas (C02), propane,
butane, fuel, mineral oil and grease
TEMPERATURE:
±0° to +300° F
-17° to +149° C
APPLICATION:
Production Heaters, Thermostats
FLUID / GAS:
Crude Oil & Gas at High Temperature
DO NOT USE WITH:
Alcohol, Glycols
TEMPERATURE:
+30° to +500° F
0° to +260° C
APPLICATION:
Crude Oil & Gas Production (High heat), Steam
Flood Production Chemicals (corrosion inhibitors) Amine
Sweetener Systems, Gasoline, Diesel, Fuel Oil Systems
FLUID / GAS:
Crude Oil & Gas Production, H2S, Steam, Petroleum
fluids, Sea Water
TEMPERATURE:
-15° to +300° F
-26° to +149° C
APPLICATION:
Crude Oil & Gas Production w/ H2S C02
FLUID / GAS:
Crude Oil & Gas H2S, C02, Sea Water
TEMPERATURE:
Buna-N:
-40° to +220° F
-40° to +105° C
Low-Temp:
-85° to +120° F
-65° to +49° C
APPLICATION:
Crude Oil & Gas Production Glycol Dehydrators,
Gasoline, Jet Fuel & Diesel Fuel Pumping, Water Disposal,
Methanol Injection Pumps, Water pump seals, hydraulic
pump seals
FLUID / GAS:
Crude Oil & Gas, Good to Poor in Sour Production (See
HSN), Water, Glycols, Hydraulic Oils, Resistance to crude
oil in the presence of hydrogen sulfide and amines, Diesel
fuel, fuel oils
DO NOT USE WITH:
Aromatic hydrocarbons, chlorinated hydrocarbons,
phosphate esters (hydraulic fluids)
TEMPERATURE:
-350° to +500° F
APPLICATION:
High heat, high chemical resistance, highly resistance
to gas permeation
AFLAS ® is a trade mark of Asahi Glass Co VITON ®is a trade mark of Dupont
ETHYLENE PROPYLENE
POLYURETHANE
GYLON
POLYACRYLATE
HSN (Highly Saturated Nitrile)
NITRILE
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PISTON BALANCED THROTTLING REPAIR MANUAL
REPAIR KIT CONTENTS
NOTE:
Always check fastener tightness prior to valve installation,
testing, and use, as fasteners have the potential to loosen
in transit. This is recommended to ensure your safety and
proper valve function.
*Kimray assembly torque method at right*
Four Bolt
Four Bolt
1
1
2
2
3
3
4
4
Six Bolt
Six Bolt
1
1
2
2
3
3
4
4
5
5
6
6
Eight Bolt
Eight Bolt
1
1
2
2
3
3
4
4
5
5
8
8
6
6
7
7
Sixteen Bolt
Sixteen Bolt
1
1
2
2
9
9
14
14
5
5
16
16
8
8
11
11
4
4
13
13
10
10
6
6
15
15
7
7
12
12
3
3
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PISTON BALANCED THROTTLING REPAIR MANUAL
NOTES
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PISTON BALANCED THROTTLING REPAIR MANUAL
DISASSEMBLY PRESSURE OPEN
STEP 1
Bonnet
Wrench loose the breather plug and set
aside (Fig. 1.0).
Using a back-up, wrench loose and
remove the nuts/bolts attaching the bon-
net to the yoke (Fig. 1.1).
Remove the bonnet and set a side
(Fig. 1.2).
Remove the spring and set aside
(Fig. 1.3).
STEP 2
Lower Housing
Wrench loose the bolts attaching the yoke
to the body (Fig. 2.0).
Remove the entire assembly from the
valve body (Fig. 2.1).
Using a back-up on the ratio plug nut,
wrench loose the nut holding the dia-
phragm plate in place (Fig. 2.2).
Remove the diaphragm plate (Fig. 2.3).
Remove the diaphragm and discard
(Fig. 2.4).
Remove the lower diaphragm plate
(Fig. 2.5).
Figure 1.0 Figure 1.1
Figure 1.2 Figure 1.3
Figure 2.0 Figure 2.1
Figure 2.2 Figure 2.3
Figure 2.4 Figure 2.5
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PISTON BALANCED THROTTLING REPAIR MANUAL
DISASSEMBLY PRESSURE OPEN
Remove the lower housing from the piston
assembly (Fig. 2.6).
Remove the gasket from the bottom of the
lower housing and discard (Fig. 2.7).
Figure 2.6 Figure 2.7
STEP 1
Bonnet
Remove the travel indicator, replace if
acrylic housing is opaque or cracked
(Fig. 1.0).
Inspect indicator stem and replace as
needed (Fig. 1.1).
Remove housing gasket and discard
(Fig. 1.2).
Remove the spring and set aside
(Fig. 1.3).
Wrench loose breather plug and set aside
(Fig. 1.4).
Wrench loose the nuts and bolts attach-
ing the bonnet to the lower housing and
remove (Fig. 1.5).
Remove the bonnet and set aside for
cleaning and inspection (Fig. 1.6).
Remove the diaphragm (Fig. 1.7).
Remove the diaphragm plate (Fig. 1.8).
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PISTON BALANCED THROTTLING REPAIR MANUAL
DISASSEMBLY PRESSURE CLOSE
Figure 1.0 Figure 1.1
Figure 1.2 Figure 1.3
Figure 1.4
Figure 1.5 Figure 1.6
Figure 1.7 Figure 1.8
Remove the diaphragm plate and set
aside for inspection and cleaning
(Fig. 1.9).
Remove the spring and set aside for
inspection and cleaning (Fig. 1.10).
STEP 2
LOWER HOUSING
Wrench loose the bolts that attach the
lower housing to the body (Fig. 2.0).
Remove bolts and set aside for inspection
and cleaning (Fig. 2.1).
Remove lower housing from the body
(Fig. 2.2)
Remove housing gasket and discard
(Fig. 2.3).
Remove piston assembly from the body
(Fig. 2.4)
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PISTON BALANCED THROTTLING REPAIR MANUAL
DISASSEMBLY PRESSURE OPEN
Figure 1.9 Figure 1.10
Figure 2.0 Figure 2.1
Figure 2.2 Figure 2.3
Figure 2.4
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