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FANTINELLI Srl

Duble diaphragm differential pressure gauges

Pressure gauge for back panel flush mounting with 3 fixing holes  
DP 360/460-C

• Nominal sizes

- 100 and 150.

 

• Execution

- A... direct mounting;

- B... surface mounting with clamp;

- C... back panel flush mounting;

- D... 2” pipe mounting;

- ...D dry;

- ...F liquid filled;

- ...P illable.


 • Casing

- case and ring in AISI 304 stainless steel (AISI 316 on request - option V61) with bayonet bezel.


• Protection degree (according to EN 60529)

- IP 55 for execution D;

- IP 67 or execution F and P.


• Window

- glass for execution D;

- methacrylate for execution F and P;

- laminated safety glass (on request - option V17).


• Casing filling liquid

- glycerine (standard);

- silicone fluid (on request - option V64).

note: all instruments with filled casing have the external zero adjustment standard.


• Pressure connections (according EN 837)

o AISI 316L stainless steel:

- 1/4-18 NPT (1/4 NPT female) - standard;

- G 1/2 B (1/2 Gas or BSP male) or 1/2-14 NPT EXT (1/2 NPT male) (on request - option V43).

o exotic materials (options W04 or W06).


• Pressure element

- AISI 316Ti or AISI 316L st. st. indipendent diaphragm, according with selected ranges;

- exotic materials (options M04 o M06)


• Static pressure for all scale ranges, apart from the pressure entry in one or both connections:

- 100 bar for model DP 360;

- 25 bar for model DP 460;

- 250 bar for model DP 360 (on request - option V47);

- 400 bar for model DP 360 (on request - option V45);

- 100 bar for model DP 460 (on request - option V44).


• Differential cell

o material:

- AISI 316L stainless steel;

- Monel 400 (option W04);

- Hastelloy C276 (option W06).

o sizes:

- DP 360, mm 100 x 100;

- DP 460, mm 150 x 150.


• Differential element filling liquid

- silicone fluid (standard);

- food compatible fluid (on request).


• Differential cell bolts and nuts

- stainless steel AISI 304;

- galvanized steel for DP 360 static 600.


• Differential cell gaskets

- nitril rubber (NBR), standard;

- FPM (Viton) on request.


• Movement

- stainless steel.


• Torsion shaft

- stainless steel.


• Ranges (according EN 837)

o Scale ranges for pressure values between 16 mbar and 25 bar:

- see table C1 at page P04; (divisions as per table C1 at page P04).

- other graduations not normalized for single or double range (on request).

o Unit of pressure:

- mbar, bar, kPa, kg/cm2 and psi for single or double range.

o Scale angle:

- 270 °.

nota: scale angle is 180° with ranges 0 ÷ 25 mbar for model DP 460 and 0 ÷ 100 mbar for model DP 360.


• Pointer

- aluminium with micrometer adjustment.


• Dial

- white aluminium with black figures (for dial modifications see available options).


• Accuracy (according EN 837)

- classe1,6 (± 1,6% of full scale deflection).).

note1: accuracy indicated on the pressure gauge does not consider the interference of an eventually applied electric contact.

note2: diaphragm seal can affect instrument accuracy according with the service conditions because of the pressure/temperature ratio.


• Ambient temperature

- -30 ÷ +60 °C.


• Operating temperature

- max 120 °C.


• Thermal drift

- with reference to the ambient temperature of 20°C, hermal drift affects the instrument accuracy as ± 0,6% every 10°C of variations.

Indipendent diaphragm differential pressure gauges


  • DP 360
    • ranges included between 100 mbar and 25 bar;
    • static pressure 100 bar;
    • scale angle 270°;
    • accuracy class 1,6.


  • DP 460
    • ranges included between 25 and 100 mbar;
    • static pressure 25 bar;
    • scale angle 270°;
    • accuracy class 1,6.