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TYPE NB / ND

TYPE NB / ND

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The NB is the Noreva standard long face to face for 12″ and larger, providing optimum pressure recovery performance and, hence minimum pressure loss. It is also available with API 6D face-to-face dimensions (ND).

Materials according to customers request, such as Low Temperature Carbon Steel, Nickel-Aluminium-Bronze, Duplex, Superduplex, 6Mo, etc.


Features:

  • Non-slam Closure

  • Friction-free Valve Disc Guiding

  • Choice of Face-to-Face Length

  • 12" - 88" (DN 300 - DN 2200)

  • Very Low Pressure Loss

  • Maintenance Free

  • Metal Sealing

  • Up to PN 400 (ANSI 2500)

The NB is the Noreva standard long face to face for 12″ and larger, providing optimum pressure recovery performance and, hence minimum pressure loss. It is also available with API 6D face-to-face dimensions (ND).

Materials according to customers request, such as Low Temperature Carbon Steel, Nickel-Aluminium-Bronze, Duplex, Superduplex, 6Mo, etc.


Features:

  • Non-slam Closure

  • Friction-free Valve Disc Guiding

  • Choice of Face-to-Face Length

  • 12" - 88" (DN 300 - DN 2200)

  • Very Low Pressure Loss

  • Maintenance Free

  • Metal Sealing

  • Up to PN 400 (ANSI 2500)

Típusok

Title
Ductile Iron
Denomination
Stainless Steel
Valve Body
ASTM A 395
ASTM A 216 WCB
ASTM A 351 CF8M
Seat
AISI 316
AISI 316
ASTM A 351 CF8M
Valve Disc
ASTM A 351 CF8M
ASTM A 351 CF8M
ASTM A 351 CF8M
Tab Washer
AISI 316
AISI 316
AISI 316
Radial Guide Assembly
AISI 316
AISI 316
AISI 316
Spring
AISI 316
AISI 316
AISI 316
Flow Diffuser
ASTM A 216 WCB
ASTM A 216 WCB
ASTM A 351 CF8M
Central Tie Bolt
ASTM A 193 B8M
ASTM A 193 B8M
ASTM A 351 CF8M

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