Watts TK-DL Скачать руководство пользователя страница 6

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Nicholson Labs

1423 Queen City Ave.
Cincinnati, OH 45214
Tel: (513) 251-8378
Fax: (513) 251-4388

BAVCO

20435 S. Susana Road
Long Beach, CA 90810-1136
Tel: (310) 639-5231
Fax: (310) 639-0721

SYMPTOM CAUSE

SOLUTION

1. Check valve fails to hold

a. Debris on check disc

Disassemble and clean

1.0 PSID minimum

sealing surface

b. Leaking gate valve

Disassemble and clean or repair

c. Damaged seat disc or

Disassemble and replace

seat

o-ring

d. Damaged guide holding

Disassemble clean or replace

check

open

e. Weak or broken spring

Disassemble and replace spring

2. Chatter during ﬂ ow

a. Worn, damaged or

Disassemble and repair or

conditions

defective

guide

replace

guide

3. Low ﬂ ows passing

a. Mainline check fouled

Disassemble and clean

through

mainline

valve (709DCDA only)

b. Meter strainer plugged

Disassemble and clean

c. Damaged mainline seat

Disassemble and replace

disc

seat

d. Broken mainline spring

Disassemble and replace

Calibration Centers

Troubleshooting Guide

Double Check Valve Assemblies

IS-TK-DL.indd 6

9/5/08 2:18:58 PM

Содержание TK-DL

Страница 1: ...COMPANY MAKES NO OTHER WARRANTIES EXPRESS OR IMPLIED THE COMPANY HEREBY SPECIFICALLY DISCLAIMS ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE The remedy described in the first paragraph of this warranty shall constitute the sole and exclusive remedy for breach of warranty and the Company shall not ...

Страница 2: ...then TC 2 Bleed hose then close VA 3 Close shutoff valve 2 then 1 Push Print Head wait then Push Start Test 4 Slowly open VA when air inlet ﬂoat opens push hold but ton for at least 2 seconds Record differential reading must be 1 PSID or more Close VA Push Stop Test 5 Close TC 2 and remove hose 6 Open shutoff valve 1 Test No 2 Test Check Valve 7 Install highside hose between TC 1 and tester connec...

Страница 3: ...hree turns 8 When dripping from bleed screw stops and gauge reading settles this is the check differential This must be 1 PSI or greater 9 Press PAUSE STOP button Test No 2 Air Inlet Vent Opening 10 Press START TEST RESUME 11 Slowly open VA and watch vent with ﬁnger over DISPLAY HOLD button When the water level above the vent starts to drop this is the vent opening press DISPLAY HOLD button This w...

Страница 4: ...ecord as tight If reading returns to 0 and the pressure A increases to pressure B the check is recorded as leaking If the reading returns to PSID No 2 shutoff valve is leaking excessively and must be replaced to test the valve 8 Close all test cocks remove hoses from TC 2 and TC 3 and TC 1 reopen shutoff valve 1 Proceed to Test No 2 Push Stop Test Test No 2 Test No 2 Check Valve 1 Install high sid...

Страница 5: ...ed air by loosening hose connection at VA Tighten hose connection and close VB Push Print Head wait then Push Start Test 7 Open VA then slowly open VB no more than 1 4 turn When relief valve drips push the hold button for 2 seconds Record reading must be 2 PSID or more Push Stop Test 8 Close VA and VB Test No 2 Test No 2 Check Valve 9 Install bypass hose between VA and TC 4 Open VA then bleed air ...

Страница 6: ...ssemble and replace seat o ring d Damaged guide holding Disassemble clean or replace check open e Weak or broken spring Disassemble and replace spring 2 Chatter during ﬂow a Worn damaged or Disassemble and repair or conditions defective guide replace guide 3 Low ﬂows passing a Mainline check fouled Disassemble and clean through mainline valve 709DCDA only b Meter strainer plugged Disassemble and c...

Страница 7: ... valve seat or inlet cover Install dielectric unions Watts Series 3001 through 3006 Electrically ground the piping system and or electrically isolate the device with plastic pipe immediately upstream and downstream of the device B 6 Valve improperly reassembled No B 6 If valve is diassembled during installation caution must be exercised to install check springs in their proper location C Valve exh...

Страница 8: ...ou can then load into the TK DL when you are connected to the computer After loading you must write data to tester Step F H Load Footing File Same as load heading except for footer G H Brings up headers and footers that were pro grammed and saved at an earlier time You may recall the footer or header to program into you test kit The recalled or Loaded information will overwrite current information...

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