Check valve wafer dual plate Cast iron-Nickel-NBR
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| Model: | Wafer check valve | Material body: | Cast iron EN-GJL 250 |
| Connection: | PN10/16/25/40 Class 150 | Material disc: | Nickeled ductile iron GGG40 |
| Temperature: | -10°C / +80°C | Material seat: | NBR |
| Pressure: | 16 bar up to DN300 check PDF | Material spring: | Stainless steel AISI 304 |
| SKU | MXT-2237370 |
|---|
| Body material | Cast Iron-GG25-EN-GJL-250 |
|---|---|
| Disc / Ball / Wedge | Ductileiron-EN-GJS-400-15-nickeled.coat |
| Seat | NBR |
Cast iron dual plate check valve for heating and water distribution.
Wafer type with short length and with a hoisting eye from DN200 to 600 for easy installation.
SPECIFICATIONS :
• Vulcanized gasket
• Hoisting eye from DN200 to 600
• Short length
• Anti-corrosion stainless steel spring
• PTFE bushing
• Weak head loss
• Vertical position with ascendant fluid or horizontal position ( respect the flow direction indicated by the arrow )
• Between flanges PN10/16, and Class 150 PN20
• From DN50 to DN80 : 4 holes on the body to be compatible Class 150 (PN20)
• Epoxy painting RAL5005 80 microns thickness
• Minimum backpressure for tightness : 2 bars
USE :
• Heating, water distribution
• Min and max Temperature Ts : - 10°C to + 80°C ( 100°C temporarily )
• Max Pressure Ps : 16 bars up to DN300 included and 10 bars over
• Do not use with pulsatory speed
STANDARDS :
• Manufacturer certified ISO 9001 : 2015
• DIRECTIVE 2014/68/EU : For liquids and gas of Group 1
o DN40-50 : Risk category I, CE marking
o DN65-200 : Risk Category II, CE 0035 marking
o DN250-300 : Risk Category III, CE 0035 marking
o DN350 : Risk Category II, CE 0035 marking
o DN400-600 : Risk Category III, CE 0035 marking
• Certificate 3.1 on request
• Designing according to API 594
• Pressure tests according to API 598, table 6
• Length according to EN 558 Series 50
• Between flanges according to EN 1092-1 PN10/16
• Check valves according to LR Rules and Regulation for the classification of Ships, July 2019 (Type
Approval Certificate) Marine LLOYD’S REGISTER. LR Type Approval System Test Specification Number
2, Chapter 8, Appendix 7-Valves :
o BS EN 12266-1 : 2003
o ISO 52008:2008
o BS EN 1561
o BS EN 1563
o ASTM A431