Stainless Steel Double Press-Fit Fittings 90-Degree Elbow A-Type

  • Precise 90° Direction Change: Engineered for accurate right-angle turns in piping layouts, optimizing space utilization and maintaining efficient flow.
  • Core of the Double Press System: A fundamental directional component in our reliable O-ring sealed press-fit system, designed for fast and foolproof installation.
  • Robust O-Ring Seal: Utilizes a precision EPDM/NBR O-ring (per GB/T19228.3), compressed via the double-press action to form a vibration-resistant, leak-proof seal.
  • Individually Pressure Tested: Every single elbow undergoes a factory test above 1.05 MPa, guaranteeing integrity before shipment.
  • Full Standard Compliance: Manufactured from 304/316L stainless steel, conforming to GB/T 19228, ISO 15835, and EN 10312 for global project applicability.

The Standard for Complete, Standalone 90° Press-Fit Turns

The Stainless Steel Double Press-Fit 90° Elbow (A-Type) is the definitive solution for creating a fully independent and sealed 90-degree directional change within a Double Press-Fit System Overview. As the “standard” configuration, its defining feature is the dual press-fit ends, meaning both connection points are designed to be permanently joined to pipes using the press tool, forming a complete, self-contained fitting.

 

Understanding Type A vs. Type B: Choosing the Right Elbow for the Job

This product is part of a strategic two-type system designed for installation flexibility:

  • A-Type (This Product): Features two press-fit ends. It is used when creating a complete 90° turn between two pipe sections, with both ends being permanently pressed. This is the most common choice for new runs, prefabrication, and standard layouts.

  • B-Type  Elbow: Features one press-fit end and one threaded or other connection end. It is used for specific adaptations, such as connecting to equipment, valves, or existing threaded piping, or when final installation distance requires adjustment.

 

Core Advantages: Reliability & Efficiency through Symmetrical Design

The symmetrical, dual press-fit design of the Type A elbow offers distinct advantages:

  • Installation Consistency: Both ports are identical, simplifying the installer’s workflow, eliminating orientation errors, and speeding up the process.

  • Assured Seal Integrity: Two independent O-ring seals undergo the same double-press procedure, guaranteeing uniform, factory-tested leak-proof performance for the entire assembly.

  • Perfect for Prefabrication: Its standardized nature makes it an ideal component for prefabricating pipe modules in a controlled workshop environment, significantly boosting on-site installation speed—a practice proven in large-scale projects like the Shenzhen Bantian Commercial Plaza Project.

Cross-section Diagram

Cross-sectional diagram cut through both arms of a 90-degree elbow, showing identical O-ring sealing grooves and compression zones at each end.
Symmetrical Security: This view illustrates the identical sealing mechanisms at both ends, ensuring uniform leak-proof integrity.

Engineered for Performance and Global Compliance

  • Material & Standards: Constructed from 304, 304L, 316, or 316L stainless steel. Fully compliant with GB/T 19228.1ISO 15835, and other major international standards.

  • Quality Verification: Every elbow undergoes individual pressure testing above 1.05 MPa. Material properties (Tensile Strength ≥520 MPa) and the sealing system are validated through rigorous System Pressure & Performance Testing.

Specification Table

Model Nominal Diameter Dimensions(mm) Dimensions(inch)
SKJ15 DN15 16 0.63
SKJ20 DN20 20 0.787
SKJ25 DN25 25.4 1
SKJ32 DN32 32 1.26
SKJ40 DN40 40 1.57
SKJ50 DN50 50.8 2
SKJ60 DN60 63.5 2.5
SKJ65 DN65 76.1 3
SKJ80 DN80 88.9 3.5
SKJ100 DN100 101.6 4
SKJ125 DN125 133.3 5.25
SKJ150 DN150 159 6.26
SKJ200 DN200 219 8.62

 

Typical Applications

  • Creating standard 90-degree turns in new potable water systems.

  • Right-angle direction changes in HVAC and hydronic piping.

  • A key component in prefabricated pipe modules for modular construction.

  • Industrial pipeline modifications requiring permanent press-fit connections at both ends.

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