80mm DI Dual Plate Check Valve CF8 Disc PN25 LIV-NRV-DI-CF8-025 Lehry

80mm DI Dual Plate Check Valve CF8 Disc PN25 LIV-NRV-DI-CF8-025 Lehry

 

Lehry DUCTILE IRON Dual Plate Check Valve PN.25

• Body : DI (ASTM A 536)
• Disc : CF8
• Rings : Nitrile
• MFG STD. : API 594
• Hing / Stop Pin : AISI 304 / AISI 316
• Ins p & Test STD. : API 598
• Ends : Wafer Type - PN 25.
• Hyd- Test Pressure. : B.T.P : 37.5 Bar
• S.T.P : 25 Bar

 

Dual Plate Check valve Is A Purpose Non Return Valve That Is Much Stronger, Lighter In Weight And Smaller In
Size As Compared To Conventional Swing Check Valve Or Lift Check Valve. This Design Has Distinct Advantages  Over conventional swing Check Valve.        
The Dual Plate Check Valve Employs Two Spring-Loaded Plates Hinged On A Central Hing Pin. When The Flow
Decreases, The Plates Close By Torsion Spring Action Without Requiring Reverse Flow.

 

Special Feature

• Operating Position: Horizontal And Vertical
• Closing System: Double Plate With Return Spring
• Light Weight, Is More Rigid Than The Standard Swing Type Check Valve, which Needs Expensive
  Foundation And Special Supports.
• Design Standard API 594
• Valve Body Fully Fusion Bonded Epoxy Powder Coated Minimum 250 Micron
• Flange Standard PN 25 / ANSI 150

 

Material of Construction

S.No.	Name of Parts	Material
1	Body	Ductile Iron
2	Disc	CF8 / CF8M
3	Spring	SS 304
4	Shaft	SS 304
5	Seat	EPDM
6	Washer	PTFE / Nilon
7	Sealing	NBR
8	Screw	Q235

 

Testing Pressure

Shell	37.5 Kg/Cm²
S.T.P	25Kg/Cm²

 

Directions for Use

• Solid Line : Valve Completely Open
  
  
• Dotted Line : Opening Stage of Valve