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5

YarwaY

 SERiES 400 intEgRAl StRAinERimpulSE

®

InstructIon, operatIon and maIntenance manual

sErVICINg

After disassembly clean internal parts with 
a cloth and an on corrosive solvent. Heavy 
deposits may be cleaned from orifice in top 
of piston valve with a piece of fine wire or 
toothpick.
 
BE CAREFul not to damage valve orifice, disc 
edge or control cylinder bore (piston valve trap). 
under no circumstances should crocus cloth or 
tools be used to clean these parts.

inspect control cylinder bore, valve and seat 
for wear (discand seat in disc type trap). Worn 
parts cause inefficient or improper operation. 
they should be replaced with a factory set 
renewal kit. 

CautION

The valve, seat and control cylinder of the renewal 
kit are matched parts. They are not individually 
interchangeable with similar parts from other 
repair kits.

disc valve type

1.  Remove bonnet and unscrew seat.
2.  inspect and clean all parts. if satisfactory, 

reassemble trap. if internals require 
replacing, remove cap nut. then using 
wrench and screw driver simultaneously 
loosen adapter and locknut and unscrew 
adapter. See page 6 for repair kit 
installation and assembly.

parts lIst

Item

description

1

Body

2

Bonnet

3

Cap nut

4

Stud

5

nut

6*

Seat

7

Adapter

8*

Disc

10

locknut

12*

Cap gasket

13

Bonnet gasket

14

Seat gasket

15

Screen

steam trap 

Figure number

renewal kit 

part number

460 A
461 A

963559-01

460 B
461 B

963559-02

460 C
461 C

963559-03

* Renewal kit parts.

FiguRE 3
Disc valve type

FiguRE 4

FiguRE 5

Do not reuse any of the old parts when 
installing a new renewal kit. Always use new 
gaskets.
Repair kit of the disc type trap does not include 
bonnet and seat gasket. these should be 
ordered separately.
Clean the strainer screen with air or steam 
blast or wash in solvent.

sparE parts, spECIal tOOls

to cover a one year service period, it is 
recommended that spare parts be stocked as 
follows:
A.  One (1) repair kit for every four (4) integral 

strainer traps installed of same internals. 
(minimum number of kits -1) and sufficient 
gaskets for trap inspection.

For the disc valve type trap, the use of a 
spanner wrench (J. H. Williams #0-471A) is 
recommended for seat removal and tightening.

Содержание Yarway Integral Strainerimpulse 400 Series

Страница 1: ... without adjustment Piston Valve Traps may be adjusted to operate between 10 psig 7 bar and the minimums stated above by removing the split washer see disassembly section Back pressures higher than the percentages stated above will cause the traps to blow open Where normal system back pressures are high removal of the split washer will also permit operation against back pressures up to 55 of press...

Страница 2: ...r ratings 2 All flanged end traps are of chrome moly steel construction Socket weld end traps in the series 440 or 460 are chrome moly steel construction Series 441 and 461 socket weld end traps are constructed from carbon steel Size end connections Figure number Internal parts Available end connections Rating psig F bar C Piston Disc SW Socket weld ends FL Flanged ends special option only A B C D...

Страница 3: ...Figure 1 Bypasses not recommended except for critical installations If discharge is to a multistation or overhead return put a swing check valve in discharge line to prevent backflooding on shut down Blow the system out before installing the trap Frequent strainer blowdown or cleaning is recommended on a new system Conditions will dictate frequency of blowdown in normal operation Welding socket we...

Страница 4: ... least once a year and more frequently if the trap is not fitted with a strainer blowdown valve 3 When cleaning the strainer it is recommended that the trap be inspected and working parts cleaned if necessary In the event of condensate drainage problems check before opening the trap whether the trouble is due to a clogged line valve broken or in wrong position or dirty strainer requiring blowdown ...

Страница 5: ...ove cap nut Then using wrench and screw driver simultaneously loosen adapter and locknut and unscrew adapter See page 6 for repair kit installation and assembly Parts list Item Description 1 Body 2 Bonnet 3 Cap nut 4 Stud 5 Nut 6 Seat 7 Adapter 8 Disc 10 Locknut 12 Cap gasket 13 Bonnet gasket 14 Seat gasket 15 Screen Steam trap Figure number Renewal kit part number 460 A 461 A 963559 01 460 B 461 ...

Страница 6: ...ly to the torque indicated in Table 1 10 Clean cap and bonnet gasket surfaces install new gasket and lubricate threads Replace cap and tighten per Table 1 Renewal kit disc valve type Installing renewal kit reassembly 1 Clean sealing surfaces and all internal parts 2 Clean studs and nuts and lubricate studs and nut faces with high temperature lubricant 3 Lubricate threads Screw adapter into bonnet ...

Страница 7: ...ranty Right to know laws and OSHA standard 29CFR 1910 1200 Material Safety Data Sheets on the following Yarway products Valves Steam traps and Strainers The OSHA Hazard Communication Standard 29CFR 1910 1200 states that the standard does not apply to articles The standard defines an article as A manufactured item formed to a specific shape or design for a particular use which does not release or o...

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