Type 882 DN 15-65

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2-WAY DIAPHRAGM VALVE

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แบรนด์ : SAMSON SED

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Type 882 DN 15-65

The new 882 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 882 is extremely compact and very light. The innovative handwheel is equipped with a patented immediate and ergonomic operating locking device that allows it to be adjusted and locked in any position.

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
• Internal components in metal, totally isolated from the fluid and external en-vironment
• Modularity of the range: only 2 handwheel and 4 diaphragm and bonnet sizes
for 7 different valve sizes
• Non-rising handwheel that stays at the same height during rotation, equipped
with a graduated optical indicator protected by a transparent PVC cap with
seal O-Ring
• Bonnet fastening screws in AISI 316 steel protected against the external envi-ronment by PE plugs. Absence of metal parts exposed to the external envi-ronment 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
- operating torque reduction

Technical specifications
 
Construction : Compact single wear diaphragm valve
Size range : DN 15-65
Diaphragm size : MA 20-50
Nominal pressure : PN 6 with water at 20 °C
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 : 
Body: PVC-U / PVC-C / PP-H / PVDF / ABS
Bonnet and handwheel: PA-GR
Position indicator cap: PVC

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

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