4Cx Hero https://www.bray.com/images/default-source/products/cx-line/4-cx/s4-cx_4g_dn-150_thumb2024.webp?sfvrsn=a8191c6_5

Double Offset

4-Cx

Size Range
DN 80 to 400
Maximum Allowable Operating Pressure
40 bar
Temperature Range
-29°C to 260°C

Specifications

Double Offset - 4-Cx

Size Range
DN 80 to 400
Temperature Range
-29°C to 260°C
Maximum Allowable Operating Pressure
40 bar
Body Style
Wafer | Lug
Tightness Test
EN 12266-1 Rate A
Valve Design
EN 12569 | EN 593 | NE 167
Material Standard
EN 16668 | AD2000 W0
Marking
EN 19 | DIN EN IEC 61406 | DIN 91406
Top Flange
ISO 5211
Flange Drilling
EN 1092-1 PN 10 | PN 16 | PN 25 | PN 40
Face to Face
EN 558 Series 20, Series 25
Declaration of Conformity
CE | UKCA
Pressure Equipment Directive
2014/68/EU | PE(S)R
Machinery Directive
2006/42/EC
Atmospheric Explosion
ATEX (2014/34/EU)
Fugitive Emissions
ISO 15848-1 | TA-Luft VDI 2440
Safety Integrity Level
IEC 61508 Level 3 (SIL 3 capable)
Body Materials
Carbon Steel (EN 1.0619) | Stainless Steel (EN 1.4408)
Disc Materials
Stainless Steel (EN 1.4408)
Stem Materials
Stainless Steel (EN 1.4542)
Seat Materials
RPTFE with Resilient Energizer
applications
Process, Sour Gas, Steam, Vacuum, Water and Wastewater

Features & Benefits

Based on Bray’s patented, award-winning design, this double offset high performance butterfly valve is precision engineered to deliver quality, value, and reliability in high temperature, high pressure, high cycle, and critical service applications. This highly versatile valve features an adjustable live-loaded stem sealing with certified low emission packing.
4 Cx
  • A. Travel Stop

    Integrated into the top flange allows for an uninterrupted bore optimizing the flow path and reduces potential turbulence. The robust travel stop outperforms pinned designs as it offers increased shear area to withstand higher torque loads.

  • B. Stem Design

    The high-strength stem design combine blowout-proof functionality for safe operation and exceptional service life.

  • C. Stem Packing

    Fully-adjustable, live-loaded and field-replaceable stem packing is certified to international fugitive emission standards.

  • D. Environmental Protection

    O-Ring seals in the top flange and travel stop prevent any external contaminants from entering the valve packing area.

  • E. Seat Design

    The energized resilient seat provides bidirectional zero leakage sealing, is self-adjustable and isolated from the line media.

  • F. Pressure Assisted Sealing

    Enables optimal bidirectional sealing performance for low and high pressures.

  • G. Disc Design

    The double offset stem and disc design reduces seat wear, lower torque and ensures extended service life.

  • H. Full-faced Seat Retainer

    Uninterrupted design provides a high integrity sealing surface with available face-to-face options between mating flanges.

  • I. Stem Bearings

    Top and bottom bearings securely support the stem, provide excellent corrosion resistance and minimizes deflection.

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