Emerson Yarway Integral Strainerimpulse 400 Series Bedienungs- und Wartungshandbuch

YARWAY SERIES 400 INTEGRAL STRAINERIMPULSE®

InstructIon, operatIon and maIntenance manual

Before installation these instructions must be fully read and understood

BACK PRESSURE LIMITS

Piston valve traps rated to 400 psig (28 bar)

(incl.) are factory set to operate from 20

psig (1.4 bar) to maximum rated pressure.

Maximum allowable back pressure at trap

outlet equals 40% of pressure at trap inlet.

(Based on absolute pressure.)

Piston Valve traps rated to 600 psig (42 bar)

(incl.) are factory set to operate from 40

psig (2.8 bar) to 600 psig (42 bar). Maximum

allowable back pressure at trap outlet equals

25% of pressure at trap inlet. (Based on

absolute pressure.)

Note: the traps operate over the specified

ranges 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 pressure at trap inlet.

(Based on absolute pressure.)

RATINGS

Operating pressure ranges

Disc valve traps rated to 600 psig (42 bar) (incl.)

operate from 4 psig (.28 bar) to maximum rated

pressure. Maximum allowable back pressure

at trap outlet is 60% of pressure at trap inlet.

(Based on absolute pressure.)

SERIES NUMBERS

To determine the size, series number, and

pressure temperature rating refer to the

nameplate on the trap body.

MAX. TEMPERATURE (C)

MAX. PRESSURE, bar

MAX. TEMPERATURE (F)

MAX. PRESSURE, psi

SATURATION

CURVE

ALL

SUPERHEAT

ALL

LIQUID

PHASE

SERIES 460

SERIES 461

SERIES 441 SERIES 440

½" 440

441

460

461

A/B DSW, FL

SW, FL

400-975 (28-524)

400-775 (28-413)

600-975 (42-524)

600-775 (42-413)

¾" 440

441

460

461

A, B, C DSW, FL

SW, FL

400-975 (28-524)

400-775 (28-413)

600-975 (42-524)

600-775 (42-413)

1" 440

441

460

461

A, B, C DSW, FL

SW, FL

400-975 (28-524)

400-775 (28-413)

600-975 (42-524)

600-775 (42-413)

YARWAY SERIES 400 INTEGRAL STRAINERIMPULSE®

InstructIon, operatIon and maIntenance manual

SUFFIX LETTER IDENTIFICATION

NOTES

1. 400 psi (28 bar) socket weld end traps are furnished for 300 psi (21 bar) and 150 psi (10.5 bar) 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 Internal part size

E Navy (Flanges per MIL-T-960E)

D Navy (Flanges per MIL-T-960D)

WARNING

Hot discharge from this product may cause severe burns. Discharge must be piped away or directed so

that persons in the vicinity are not endangered. This product must be isolated, vented and cool to the

touch before repairing or inspecting.

YARWAY SERIES 400 INTEGRAL STRAINERIMPULSE®

InstructIon, operatIon and maIntenance manual

FIGURE 1

Equipment drain

Yarway Welbond shut off valve

Dirt leg

(optional)

Steam trap

Strainer blow-down (optional)

½ Yarway Welbond globe valve Test valve (optional)

Yarway Welbond globe valve

Elevated return

Check valve

Return main

INSTALLATION

Piping to and from the trap should be equal to

trap size or one size larger. Discharge line for

short runs equal to trap size; larger for long

runs. Avoid configurations that would cause

excessive back pressure.

Locate trap below outlet from equipment

(gravity flow). If trap must be above drain

provide a 'U' or lift fitting at the bottom of the

riser before the trap (water seal). The trap may

be installed in a horizontal or vertical line or at

any angle so long as the discharge is downward

or horizontal.

Valves - use gate type for isolating, globe type

for strainer blowdown, or for test (see 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 welding or seal welding

of this trap body to the piping should be

completed according to applicable Codes,

Standards and Procedures. DO NOT make

electrical welding connections to the trap body

or any other part of the trap to prevent internal

arcing. Electrical ground should be made to the

pipe and not the trap.

The standard body material for Series 400

traps is ASTMA182 GR F11, with controlled

carbon to .15% MAX. The trap is also available

in ASME SA-105 with Carbon controlled to .25%

max, manganese controlled to 1.25% max and

normalized. See underside of body for material

designation.

Note: it is not necessary to disassemble the

trap prior to welding, but avoid subjecting the

internals to temperatures higher than 500°F.

YARWAY SERIES 400 INTEGRAL STRAINERIMPULSE®

InstructIon, operatIon and maIntenance manual

DISASSEMBLY

Piston valve type

1. Remove bonnet and unscrew seat.

2. The valve is larger in diameter than the

open end of the cylinder. To remove the

valve from the cylinder, push valve into back

of cylinder, squeeze open end of cylinder

lightly with pliers then tilt the valve out of

the cylinder.

3. Inspect and clean all parts. If satisfactory,

reassemble trap. If internals require

replacing, remove cap nut and lock pin.

Then using wrench and screw driver

simultaneously loosen control cylinder and

locknut. Remove split washer and unscrew

control cylinder. See page 6 for renewal kit

installation and assembly.

Note: To reset trap for low pressure operation,

omit split washer when reassembling. Tighten

locknut lightly against bonnet.

MAINTENANCE

Check bonnet nut torque after 48 hours of

operation.

1. For best trap operation and maximum

service life, strainer screen should be

cleaned frequently. This can best be done by

using a blowdown valve connected to blow

off connection.

2. Periodically remove the bonnet and clean

and inspect the screen. This should be done

at 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.

4. More frequent checks for proper trap

operation can be quickly made by one of the

following methods:

a. Observe the discharge from the trap

through the test connection - first

closing the downstream stop valve.

b. Hold screwdriver or metal rod against

base of cap. Listen for characteristic

clicking sound of valve as it opens and

closes.

c. Check temperature of the cleaned pipe

surface upand downstream of trap.

Use a touch pyrometer or temperature

sensitive crayon.

If trap is remaining open continuously or not

operating at all:

 strainer screen may be damaged or dirty

 parts may be worn from service

 dirt and scale may be lodged in internals

Disassemble and inspect the trap

PARTS LIST

Item Description

1Body

2Bonnet

3Cap nut

4Stud

5Nut

6* Seat

7* Control cylinder

8* Valve

9* Split washer

10* Locknut

11* Lock pin

12* Cap gasket

13* Bonnet gasket

14* Seat gasket

15* Screen

FIGURE 2

Piston valve type

* Renewal kit parts for serias 460 and 461 traps only.

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

1Body

2Bonnet

3Cap nut

4Stud

5Nut

6* Seat

7Adapter

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.

YARWAY SERIES 400 INTEGRAL STRAINERIMPULSE®

InstructIon, operatIon and maIntenance manual

RENEWAL KIT - PISTON 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, such as“Molykote.”

3. Remove lock pin, split washer and nut from

control cylinder stem.

4. Lubricate threads. Screw control cylinder

into bonnet.

5. With valve in cylinder, lubricate threads,

screw seat into bonnet be sure valve enters

seat orifice and that seat contacts the

bottom of the counter bore in the bonnet.

6. Replace split washer, locknut (bevel up),

and fully insert lock pin.

7. Screw cylinder down; tighten locknut per

Table 1.

8. Push screen into body recess and with body

and seat gaskets in place lower bonnet over

studs.

9. Replace bonnet nuts, hand tighten, then

tighten alternately 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; tighten firmly and lock with locknut.

4. Place disc in chamber (groove facing seat);

lubricate threads, screw seat into bonnet

and tighten firmly.

5. Push screen into body recess and with body

and seat gaskets in place lower bonnet over

studs.

6. Replace bonnet nuts, hand tighten, then

tighten alternately to the torque indicated

in Table 2.

7. Clean cap and bonnet gasket surfaces,

install new gasket, and lubricate threads.

Replace cap and tighten per Table 2.

TABLE 1

Torque values (ft·lbs (Nm))

Bonnet nuts 65-70 (88-95)

Cap nut 25-30 (34-41)

Locknut 7.9-8.3 (10.7-11.3)

TABLE 2

Torque values (ft·lbs (Nm))

Bonnet nuts 65-70 (88-95)

Cap nut 25-30 (34-41)

Locknut 7.9-8.3 (10.7-11.3)

Seat 70-80 (95-109)

Neither Emerson, Emerson Automation Solutions, nor any of their affiliated entities assumes responsibility for the selection, use or maintenance of any product.

Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user.

Yarway is a mark owned by one of the companies in the Emerson Automation Solutions business unit of Emerson Electric Co. Emerson Automation Solutions, Emerson and the

Emerson logo are trademarks and service marks of Emerson Electric Co. All other marks are the property of their respective owners.

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. All sales are governed by our terms and

conditions, which are available upon request. We reserve the right to modify or improve the designs or specifications of such products at any time without notice.

Emerson.com/FinalControl

YARWAY SERIES 400 INTEGRAL STRAINERIMPULSE®

InstructIon, operatIon and maIntenance manual

NOTE

Any malfunction of this product must be reported to the service department.

Repair made to the product by unauthorized personnel will void the warranty.

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 otherwise expose an employee to a hazardous chemical under normal conditions of use.”

The above named products fall within the definition of an “article”, no Material Safety Data Sheets

are available or are required. Our product is manufactured as an “end product.”

If the product is a weld end the following applies.

WARNING

Materials used in manufacture of Yarway products are considered in a stable condition when shipped.

However, under certain conditions purchasers could create potential hazardous conditions by their

future operations.

CAUTION

Welding, cutting, burning, machining or grinding of this product can generate toxic dust and fumes of

potentially hazardous ingredients. The dust or fumes can cause irritation of the respiratory tract, nose,

throat, skin and eyes. It may cause temporary or permanent respiratory disease in a small percentage

of exposed individuals. Use moderate ventilation when grinding or welding. Avoid breathing dust, fumes

or mist. Avoid prolonged skin contact with dust or mist. Maintain dust levels below OSHA and ACGIH

levels. Use protective devices. Wash hands thoroughly after contact with dust before eating or smoking.

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