Types 1808 and 1808A
11
12
10
19
86
5
14
9
37
3
13
1
4
20
16
36
7
2
A6920
TyPE 6358 PilOT inTERiOR ViEW
41
8
6
B2619-2
TyPE 6358B PilOT inTERiOR ViEW
Figure 6. Types 6358 and 6358B Pilot Assemblies
Страница 1: ... or service the regulator Introduction Scope of the Manual This manual provides installation adjustment maintenance and parts ordering information for Types 1808 and 1808A pilot operated relief valves or backpressure regulators The manual also includes coverage of the Types 6358 and 6358B pilots and if used a P590 Series filter Instructions and parts lists for other equipment used with these regul...
Страница 2: ... 0 148 0 192 3 05 3 76 4 88 2 12 2 00 2 19 54 0 51 0 55 6 the oil and gas industry are typically handled by the Type 6358B pilot With either pilot the set pressure is varied to individual requirements by the adjusting screw on the pilot Pilot exhaust can be piped into the downstream line or vented into the atmosphere on gas service and should be piped downstream or to a safe location on liquid ser...
Страница 3: ...n of the valve plug then through the hollow passage in that valve plug Force from the main spring along with inlet pressure bleeding through the pilot provide downward loading pressure to keep the main valve closed When inlet pressure rises above the set pressure pressure on the pilot diaphragm overcomes the control spring to close the upper port and stroke the valve plug to open the lower port Th...
Страница 4: ...r liquid from the main valve outlet pilot exhaust and pilot vent In hazardous or flammable gas or liquid service personal injury or property damage may occur due to fire or explosion of vented gas or liquid that has accumulated To prevent such injury and damage provide piping or tubing to vent the gas to a well ventilated location Also when venting a hazardous gas or liquid piping or tubing should...
Страница 5: ... both vent valves to release all pressure from the main valve and pilot Maintenance Parts are subject to normal wear and must be inspected and replaced as necessary Frequency of inspection and maintenance depend upon severity of service conditions The main valve body need not be removed from the line prior to maintenance Warning Avoid personal injury or property damage from sudden release of press...
Страница 6: ... unit will immediately be returned to service Types 6358 and 6358B Pilots This procedure is performed if inspecting or replacing any pilot parts Key numbers are shown in Figure 6 Note All pilot maintenance may be performed with the pilot body key 1 attached to the pipe nipple unless the body is removed or the entire pilot replaced as a unit If only the control spring key 7 or spring seat key 8 nee...
Страница 7: ...CE P590 Series Filter This procedure is to be performed if it is necessary to clean or replace filter parts in a Type P593 1 or P594 1 filter assembly 1 Remove the following as shown in Figure 5 filter body key 1 machine screw key 4 spring washer key 6 gasket key 7 two flat washers key 5 and filter element key 2 2 Upon reassembly one of the flat washers must go between the filter element and filte...
Страница 8: ...Types 1808 and 1808A 8 21 17 18 13 4 19 10 36 9 14 8 47A7696 A 47A7696 A Figure 3 Type 1808A Assembly 21 17 18 12 13 4 19 10 36 1 16 2 3 5 11 20 6 7 15 9 14 8 ...
Страница 9: ...Types 1808 and 1808A 9 45A7841 D Figure 4 Type 1808 Assembly Figure 5 P590 Series Filter Assembly 6 7 1 4 3 5 2 5 A7008 c A D 12 1 13 4 19 36 10 17 18 9 14 8 3 15 16 2 21 5 20 6 7 11 ...
Страница 10: ...Wire 304 Stainless Steel for Type P593 1 NACE only 1U7581X0022 Key Description Part Number 6 Connector Cap 18 8 Stainless steel 16A2921X012 316 Stainless steel 16A2921X022 7 Spring 3 to 18 psig 0 21 to 1 2 bar Green 1B986027212 15 to 40 psig 1 0 to 2 8 bar Yellow 1E392527022 35 to 125 psig 2 4 to 8 6 bar Red 1K748527202 8 Spring Seat Steel 1B798525062 9 Stem Guide 416 Stainless steel standard 16A2...
Страница 11: ... 11 12 10 19 8 6 5 14 9 37 3 13 1 4 20 16 36 7 2 11 A6920 Type 6358 Pilot Interior view 10 12 11 36 16 13 20 4 1 2 7 19 14 37 3 8 6 5 9 B2619 2 Type 6358B Pilot Interior view Figure 6 Types 6358 and 6358B Pilot Assemblies ...
Страница 12: ...on Process Management product remains solely with the purchaser Emerson Process Management Regulator Technologies Inc 1978 2010 All Rights Reserved 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 Pacific Shanghai China 201206 Tel 86 21 2892 9000 Europe Bologna Italy 40013 T...
