CLA-VAL 90-21 Installation Operation & Maintenance Download Page 20

The strainer is designed for use in conjunction with a Cla-Val
Main Valve, but can be installed in any piping system where
there is a moving fluid stream to keep it clean. When it is used
with the Cla-Val Valve, it is threaded into the upstream body port
provided for it on the side of the valve. It projects through the
side of the Main Valve into the flow stream. All liquid shunted to
the pilot control system and to the cover chamber of the Main
Valve passes through the X46 Flow Clean Strainer.

C

Male 

Pipe

SAE

H

D

E

B

I

G

Male

Pipe

B

I

Width Across Flats

Female

Pipe

A

D

E

F

• Self Scrubbing Cleaning Action
• Straight Type or Angle Type

The Cla-Val Model X46 Strainer is designed to prevent passage of
foreign particles larger than .015". It is especially effective against
such contaminant as algae, mud, scale, wood pulp, moss, and root
fibers.  There is a model for every Cla-Val. valve.

The X46 Flow Clean strainer operates on a velocity principle utiliz-
ing the circular "air foil" section to make it self cleaning. Impingement
of particles is on the "leading edge" only. The low pressure area on
the downstream side of the screen prevents foreign particles from
clogging the screen. There is also a scouring action, due to eddy
currents, which keeps most of the screen area clean.

Dimensions 

(In Inches)

INSTALLATION

X46 Angle Type B (In Inches)

B

(NPT)

C

(SAE)

D

E

H

I

1/8

1/4

1-3/8

5/8

7/8

1/4

1/4

1/4

1-3/4

3/4

1

3/8

3/8

1/4

2

7/8

1

1/2

3/8

3/8

1-7/8

7/8

1

1/2

1/2

3/8

2-3/8

1

1-1/4

5/8

X46A Straight

X46B Angle

X46A  Straight Type A (In Inches)

A B

D

E

F

G

I

1/8

1/8

1-3/4

3/4

1/2

1/2

1/4

1/4

1/4

2-1/4

1

3/4

3/4

3/8

3/8

3/8

2-1/2

1

7/8

7/8

1/2

3/8

1/2

2-1/2

1-1/4

1/2

7/8

3/4

1/2

1/2

3

1-1/4

1

1-1/8

3/4

3/8

3/4

3-3/8

2

1/2

1

7/8

3/4

3/4

4

2

1

1-1/2

7/8

3/8

1

4-1/4

2-3/4

1/2

1-3/8

7/8

1

1

4-1/2

2-3/4

1-1/4 1-3/4

7/8

1/2

1

4-1/4

2-3/4

1/2

1-3/8

7/8

Flow Clean Strainer

X46

INSPECTION

Inspect internal and external threads for damage or    evidence
of cross-threading. Check inner and outer screens for clogging,
embedded foreign particles, breaks, cracks, corrosion, fatigue,
and other signs of damage.

CLEANING

After inspection, cleaning of the X46 can begin.  Water service usually will produce
mineral or lime deposits on metal parts in contact with water.  These deposits can
be cleaned by dipping X46 in a 5-percent muriatic acid solution just long enough
for deposit to dissolve.  This will remove most of the common types of deposits.

Caution: use extreme care when handling acid.  

If the deposit is not removed

by acid, then a fine grit (400)  wet or dry sandpaper can be used with water.
Rinse parts in water before handling.  An appropriate solvent can clean parts used
in fueling service.  Dry with compressed air or a clean, lint-free cloth.  
Protect from damage and dust until reassembled.

REPLACEMENT

If there is any sign of damage, or if there is the slightest doubt that the Model X46
Flow Clean Strainer may not afford completely satisfactory operation, replace it.
Use Inspection steps as a guide. Neither inner screen, outer screen, nor housing is
furnished as a replacement part. Replace Model X46 Flow Clean Strainer as a com-
plete unit.

When ordering replacement Flow-Clean Strainers, it is important to determine pipe
size of the tapped hole into which the strainer will be inserted (refer to column  A or
F), and the size of the external connection (refer to column B or G).

When Ordering,

Please Specify:

• Catalog Number X46
• Straight Type or Angle Type
• Size Inserted Into and Size Connection
• Materials

DISASSEMBLY

Do not attempt to remove the screens from the strainer housing.

MODEL

INSTALLATION / OPERATION / MAINTENANCE

N-X46 (R-1/08)

(NPT)

(NPT)

X46B

X46A

Distributed By: M&M Control Service, Inc.

                www.mmcontrol.com/claval-index.php 800-876-0036     847-356-0566

Summary of Contents for 90-21

Page 1: ...90 21 Distributed By M M Control Service Inc www mmcontrol com claval index php 800 876 0036 847 356 0566...

Page 2: ...ing is done with flow rate as low as practical 8 Adjust the CRD Control 3 to desired pressure To change pres sure setting turn the adjusting screw in clockwise to increase delivery pressure Turn the a...

Page 3: ...ain Valve 2 X58C Restriction Fitting 3 CRD Pressure Reducing Control 4 X46A Flow Clean Strainer HYTROL MAIN VALVE inlet Cover vent 3 8 NPT Cap Adjusting Screw Jam Nut Cover Spring Hex Nut Belleville W...

Page 4: ...Distributed By M M Control Service Inc...

Page 5: ...Distributed By M M Control Service Inc www mmcontrol com claval index php 800 876 0036 847 356 0566...

Page 6: ...pressure regardless of changing flow rate and or varying inlet pressure The valves pilot con trol system is very sensitive to slight downstream pressure fluctuations and will automatically open or cl...

Page 7: ...Cover Material 5 Threaded Flanged or Grooved 6 Pressure Class 7 Optional Epoxy Coating specify with suffix KC When Ordering Please Specify E 90G 21 R 7 08 Dimensions VALVE SIZE inches A THREADED AA 1...

Page 8: ...part the diaphragm and disc assembly So there are only three major types of problems to be considered First Valve is stuck that is the diaphragm assembly is not free to move through a full stroke eit...

Page 9: ...hing is mechanically restricting the stroke of the valve The cover must be removed and the obstruction located and re moved The stem should also be checked for scale build up See Maintenance Section f...

Page 10: ...for further removal On the smaller valves the entire diaphragm assembly can be held by the stem in a vise equipped with soft brass jaws before removing the stem nut The use of a pipe wrench or a vise...

Page 11: ...4 Stud 8 and larger 5 Cover Bearing 6 Cover 7 Stem Nut 8 Diaphragm Washer 9 Diaphragm 10 Spacer Washers 11 Disc Guide 12 Disc Retainer 13 Disc 14 Stem 15 Seat 16 Body 17 Spring 22 Flat Head Screws 8 a...

Page 12: ...AT ZERO FLOW WHEN FLOW STARTS AT 275 GPM IS REDUCED UNTIL FLOW IS ZERO WITH OUTLET PRESSURE CONTROL SETPOINT AT 30 PSI INLET PRES SURES FROM 75 TO 300 PSI THE RECORDED OUTLET PRESSURE AT ZERO FLOW RA...

Page 13: ...utlet Setting 165 psi Inlet 20 psi Outlet Setting 30 psi 1 1 2 90A 21 Inlet 155 Outlet Setting 165 psi Inlet 100 psi Outlet Setting 165 psi Inlet 50 psi Outlet Setting 165 psi Inlet 20 psi Outlet Sett...

Page 14: ...psi Inlet 50 psi Outlet Setting 165 psi Inlet 20 psi Outlet Setting 30 psi 3 90G 21 175 150 125 100 75 50 25 0 0 100 200 300 400 500 600 OUTLET PRESSURE PSI FLOW GPM Inlet 155 psi Outlet Setting 165 p...

Page 15: ...psi Inlet 50 psi Outlet Setting 165 psi Inlet 20 psi Outlet Setting 30 psi 1000 750 500 250 0 0 25 50 75 100 125 150 175 OUTLET PRESSURE PSI FLOW GPM 1250 1500 6 90G 21 Page 4 UL Tested March 23 1999...

Page 16: ...Distributed By M M Control Service Inc...

Page 17: ...id Back off adjusting screw Mechanical obstruction Disassemble and reassemble properly refer to Reassembly Worn disc Disassemble remove and replace disc retainer assembly Yoke dragging on inlet nozzle...

Page 18: ...on Material Part Number List Price 1 Cap PL 67628J 2 Adjusting Screw BRS 7188201D 3 Jam Nut 3 8 16 SS 6780106J 4 Machine Screw Fil Hd 8 Req d 303 6757821B 5 Cover BRS C2544K 6 Nameplate Screw SS 67999...

Page 19: ...S CDB 7 CRL 5A CRL 13 10 60 10 60 10 60 12 0 12 0 12 0 162 DIA V5695B YELLOW MUSIC WIRE CDB 7 CRL 5A CRL 13 20 80 20 80 20 80 14 5 14 5 14 5 207 DIA C1124B CAD PLT MUSIC WIRE CDB 7 CRL 13 CRL 5A 50 15...

Page 20: ...2 1 3 8 7 8 1 1 4 1 2 2 3 4 1 1 4 1 3 4 7 8 1 2 1 4 1 4 2 3 4 1 2 1 3 8 7 8 Flow Clean Strainer X46 INSPECTION Inspect internal and external threads for damage or evidence of cross threading Check in...

Page 21: ...Distributed By M M Control Service Inc www mmcontrol com claval index php 800 876 0036 847 356 0566...

Page 22: ...Distributed By M M Control Service Inc www mmcontrol com claval index php 800 876 0036 847 356 0566...

Page 23: ...Distributed By M M Control Service Inc www mmcontrol com claval index php 800 876 0036 847 356 0566...

Page 24: ...it is important to properly identify Cla Val products already in service Include all nameplate data with your inquiry Pertinent product data includes valve function size material pressure rating end d...

Page 25: ...812G 9169813E 9169815K 9817901D 9817902B N A 9817903K 9817905E 9817905E 3 8 1 2 3 4 1 1 1 4 1 1 2 2 2 1 2 3 4 6 8 9169806J 9169807G 9169808E 9169809C 9169810A 9169817F 9169818D 9169819B 9169820K 91698...

Page 26: ...ber Pilot Control Kit Stock Number Pilot Control Kit Stock Number CDB 9170006C CRM 7 1263901K CDB KB 9170012A CDB 3D 9170023H CFM 7A 1263901K CRA KB N A CDB 3I 9170024F CFM 9 12223E CRD KB w bucking s...

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