Type 485/285 - DN 25-100

คุณสมบัติสินค้า:

PNEUMATICALLY ACTUATED 2-WAY DIAPHRAGM VALVE

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แบรนด์ : SAMSON SED

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Type 485/285 - DN 25-100

The 485/285 diaphragm valve is particularly suitable for shutting off and regulating abrasive or dirty fluids. The new internal geometry of the body optimises fluid dynamic efficiency by increasing the flow rate and ensuring an optimum linearity of the flow adjustment curve. The 485/285 is extremely compact and very light.

PNEUMATICALLY ACTUATED 2-WAY DIAPHRAGM VALVE

• Connection system for solvent weld, threaded and flanged joints
• Optimised fluid dynamic design: maximum output flow rate thanks to
the optimised efficiency of the fluid dynamics that characterise the new
internal geometry of the body
• Light and compact piston actuator in PP-GR, ideal for heavy-duty applications in chemically aggressive environments
• High performance internal components: piston in high strength IXEF
with high quality surface finish and Stem in stainless steel with double
seal O-Ring
• Bonnet fastening screws in AISI 316 steel protected against the external
environment by PE plugs. Absence of metal parts exposed to the external
environment to prevent any risk of corrosion
• CDSA (Circular Diaphragm Sealing Angle) system that, thanks to the uniform distribution of shutter pressure on the diaphragm seal, offers the
following advantages:

- reduction in the tightening torque of the screws fixing the actuator to
the valve body
- reduced mechanical stress on all valve components (actuator, body and
diaphragm)
- easy to clean valve interior
- low risk of the accumulation of deposits, contamination or damage to the
diaphragm due to crystallisation

Technical specifications
 
Construction : Pneumatically actuated diaphragm valve with body at maximized flow rate
Size range : DN 25-100
Nominal pressure : PN 10 with water at 20 °C, DN 15 - 65
    PN 6 with water at 20 °C, DN 80 - 100

Temperature range : PVC-U: 0 °C - 60 °C - PVC-C: 0 °C - 100 °C
PP-H: 0 °C - 100 °C - PVDF: -20 °C - 120 °C
ABS: -20 °C - 80 °C
Coupling standards :
Solvent welding / Welding: EN ISO 1452, EN ISO 15493,
BS 4346-1, DIN 8063, NF T54-028, ASTM D 2467.
Can be coupled to pipes according to EN ISO 1452,
EN ISO 15493, DIN 8062, NF T54-016, ASTM D 1785

Thread: ISO 228-1, DIN 2999, ASTM D 2464,

Flanging system: ISO 7005-1, EN ISO 1452, EN ISO
15493, EN 558-1, DIN 2501, ANSI B16.5 Cl.150, JIS B2220

Reference standards :
Construction criteria: EN ISO 16138, EN ISO 1452,EN ISO 15493
Test methods and requirements: ISO 9393
Installation criteria: DVS 2204, DVS 2221, UNI 11242

Valve material : PVC-U / PP-H (PVDF and PVC-C available on request) ABS

Diaphragm material : EPDM, FPM, PTFE (on request NBR)
Control options : Manual control; pneumatic actuator
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