• Email:sales@deruiseal.com   Whatsapp:+86 18180453800

Metal Bellows Seal-BPB22

Type 551, BT-FN Mechanical Seal
  • Type 551, BT-FN Mechanical Seal

Metal Bellows Seal-BPB22

Features

  • API682 Category 2 and 3, Type BArrangement 2 seal
  • Dual seal in face-to-back arrangement
  • Balanced
  • Cartridge unit
  • Rotating metal bellows

Typical Applications:
Ideal for pumps and high-temperature rotating equipment in petroleum & chemical industries.

  • Refining technology
  • Oil and gas industry
  • Petrochemical industry
  • Chemical industry
  • Power plant technology
  • LPG plants
  • API 610 /IS0 13709 pumps
  • Process pumps

Mediums:
Suitable for petroleum, chemical solutions, weak acids/alkalies, salts, refrigerants and fluids with low solids content.

Performance Capabilities:

Pressure: 0~ 2.0MPa

Temperature: -40 ~200°C

Linear Speed: ≤25 m/s

Material Selection:

Metallic Components:304、316L、2205、2507

Spring: 316L, Hastelloy C-276,TA2、Inconel 718

Seal Rings: SSiC , WC、Graphite

Elastomer Options: FKM, FFKM, EPDM, NBR , OMNISEAL

This product can be an alternative to similar products such as Eagel Burgmann LY9DTSS.

  • Product Description:

    Designed in accordance with API682,compliant with API 610 seal chamber dimensions. It is rated for a pressure of up to 2.0 MPa. It includes shaft sleeve,rotating ring, stationary ring,auxiliary seals, flexible elements,seal glad,drive components.

    Technical Features:

    1.High-strength,High-performance seal materials for optimal performance.

    2.Balanced design with precisely calculated face pressure ratio to reduce face load and minimize heat generation.

    3.Bellows design minimizes face load fluctuations, ensuring stable and reliable sealing performance.

    4.Built-in flush circulation system – enhances fluid flow efficiency and optimizes seal operating conditions.

    5.Large-cross-section sealing rings maintain floatability while enhancing sealing performance.

    6.Highly reliable drive design effectively prevents slippage.

    7.Compact radial dimensions for space-saving design and broad equipment compatibility.

    Solution Selection:

    Primary seal offers Plan 02  or Plan 32  options based on process conditions and media temperature. Secondary seal typically uses Plan 52 (with Plan 55 alternative). Tertiary seal can be configured with Plan 62 as required.

Latest News

© 2009 - 2025 Chengdu Derui Sealing Technology Co., Ltd. All Rights Reserved.