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. 9

DIAPHRAGM VALVE DA 250

13

14

13

15

6

16

5

8

7

1

4

3

2

11

9

12

10

12

5

15

6

16

8

7

1

13

13

14

4

10

3

2

11

9

6.4 Breakdown (updated version)

POS

CODE

Q.TY

DESCRIPTION

1

BG000450

8

Valve body DA 250

2

BG000451

1

Frontal body DA 250

3

M25010

1

Body PTFE DA 250

4

DH000450

1

Diaphragm DA 250

5

MDC000450

1

Full micrometric adjustment

6

PST000450

1

Piston Ø 18

7

WSH000450

1

Washer

8

M25004

1

Lip seal DA 250

9

M25008

1

DA 250 ferrule for syring 

nozzle

10

RRBF0252

1

Push-in fitting in nickel-pla-

ted brass

11

SC00030251

1

Stainless steel screw

12

SC00030161

1

Stainless steel screw

13

RNG00015E

1

O-ring

14

RNG040X10E

2

O-ring

15

CCS000450

1

Cylindrical compression 

spring

16

SGG501801

2

Seeger for Ø 18 holes

6.5 Components

Summary of Contents for DA 250

Page 1: ...DIAPHRAGM VALVE DA 250 DAV TECH SRL Via Ravizza 30 36075 Montecchio Maggiore VI ITALIY Tel 0039 0444 574510 Fax 0039 0444 574324 davtech davtech it www davtech it Installation and maintenance guide...

Page 2: ...rive the valve 3 3 Fluid connection 3 4 Setting of the valve 3 5 Setting of the material quantity 4 MAINTENANCE pag 6 4 1 General rules 4 2 Valve Disassembly Re assembly 5 TROUBLESHOOTING pag 6 5 1 Pr...

Page 3: ...ature are subject to wear 1 3 Goods receiving The original configuration of the valve must never be changed Upon receipt of the goods check that The packaging is intact The exact correspondence of the...

Page 4: ...of the special threaded hole M5 on the valve or by an ad hoc collar A good fixing of both the dosing valve to the support and the machine should be guaranteed without vibration and with good accessib...

Page 5: ...on the adjuster knob located at the top of the dispensing valve Rotate clockwise to decrease the membrane stroke and consequently the amount of product Turning clockwise reaching the end of the strok...

Page 6: ...ith the explosion shown below 5 TROUBLESHOOTING 5 1 Problems and solutions Installation and maintenance guide PROBLEM POSSIBLE CAUSE SOLUTION Nothing or little adhesive Valve does not receive the comm...

Page 7: ...IONS DIAPHRAGM VALVE DA 250 NOTE The old and updated versions differ in their external appearance due to the presence or absence of the dowel placed in the center of component no 2 old version and no...

Page 8: ...block 3 25002 1 Spring 4 25003 1 Piston 5 92010702 1 O ring 6 92011401 1 O ring 7 25004 1 Lip seal 8 25005 1 Washer 9 25009 1 Body 10 25006 1 Diaphragm 11 25010 1 Body Teflon 12 25007 1 Frontal body 1...

Page 9: ...4 DH000450 1 Diaphragm DA 250 5 MDC000450 1 Full micrometric adjustment 6 PST000450 1 Piston 18 7 WSH000450 1 Washer 8 M25004 1 Lip seal DA 250 9 M25008 1 DA 250 ferrule for syring nozzle 10 RRBF0252...

Page 10: ...Maggiore VI ITALY Tel 0039 0444 574510 Fax 0039 0444 574324 davtech davtech it www davtech it We reserve the right to modify at any time without notice the specifications dimensions and weights in th...

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