A65 front
Product Brand
Seal Systems
About this product

The Flowserve A65 leakage collection and detection system is fully compliant with API 682 4th edition and used with single mechanical seals on process fluids that condense at ambient atmospheric conditions.

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  • High maximum allowable working pressure (MAWP) 70.7 bar at 204°C (1,025 psi at 400°F)
  • Designed with standard 3 liter (0.79 US gallon) effective volume complying with 682 4th edition standards
  • All stainless-steel construction for superior corrosion protection
  • Available with NPT, socket welded or butt welded construction with NPT or Cl 600 flange connections
  • Pre-configured transmitter and switch selections for reduced lead-time
  • Designed in accordance with ASME VIII.1 with optional U-stamp
  • Optional PED and CRN compliance


  • API Standard 682 (4th Edition)
  • ASME BPVC Section VIII Div. 1
  • Pressure Equipment Directive (PED) 2014/68/EU
  • CSA B51

Operating Parameters

  • MAWP:
    1240 psi @200F (85.5 bar at 93.3C)
    1025 psi @400F (70.7 bar at 204.4C)
  • MDMT:
    -49F (-45C) Min. operating temp: -40 to -58F (-40 to -50C)
    Varies by instrumentation rating

Size Range: Effective Volume - 0.79 U.S. Gallon (3.0 Liter)

Materials: All 316 stainless-steel construction

  • Plan 65A or B


  • Socket welded Cl 600 RFSW
  • Butt welded CI 600 RFWN
  • NPT

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