MSS SP-75 A860 WPHY 70 48″WT:31.75mm Butt welded barred tee used for gas station

A barred tee is a type of pipe fitting used in piping systems, particularly in industries like oil, gas, and petrochemical. It is a standard tee fitting with an additional feature: it contains bars or a grate across the branch outlet. These bars are designed to:

Prevent Pig Passage: In pipelines where cleaning or inspection tools (known as pipeline pigs) are used, the barred tee ensures that the pig continues along the main pipeline without diverting into the branch line.

Provide Structural Support: The bars can help maintain the integrity of the tee while guiding the flow and preventing debris or tools from entering the branch.

Components
Main Run: The straight section of the tee.
Branch Connection: The perpendicular outlet where the bars are installed.
Bars: Typically welded or integrated into the branch to restrict movement of pigs or tools.
Common Applications
Pigging systems in pipeline networks.
Flow management systems in oil and gas operations.
Situations requiring controlled flow direction and equipment guidance

Design and Specifications:

Dimensions: Barred tees are typically based on standard tee dimensions as per ASME B16.9 or MSS-SP 75. However, the addition of bars is customized to suit specific pipeline requirements. The bars are welded inside the branch outlet to block the passage of pigs.
SUNNY STEEL

Pressure Ratings: They are available in various pressure classes, commonly ranging from ASME Class 150 to 2500 and higher, depending on the application’s requirements.
SURE FLOW EQUIPMENT

料: Barred tees are fabricated from materials such as carbon steel (e.g., ASTM A234), stainless steel (e.g., 304, 316), or alloy materials, chosen based on the pipeline’s operating environment and the conveyed fluid’s properties.
SURE FLOW EQUIPMENT

Bar Configuration: The number and thickness of bars vary with the size of the tee and the pigging tool’s design. For instance, a 12-inch run size may have three bars, each 1/2 inch thick, to ensure the pig passes by the branch opening without damage.
SURE FLOW EQUIPMENT

Standards and References:

ASME B16.9: This standard covers factory-made wrought steel butt-welding fittings, including tees, which serve as the basis for barred tee dimensions.

MSS-SP 75: This standard pertains to high-strength, wrought, butt-welding fittings, providing guidelines for manufacturing fittings like tees used in high-pressure pipelines.

Manufacturer Specifications: Manufacturers often provide detailed datasheets outlining the dimensions, materials, pressure ratings, and design specifics of barred tees. For example, Sure Flow Equipment offers barred tees fabricated to customer specifications, adhering to industry standards and pipeline vessel design codes.

料
ニッケル合金: ASTM / ASME S / B366 UNS N08020, N04400, N06600, N06625, N08800, N08810, N08825, N10276、N10665、N10675
スーパーステンレス: ASTM/ASME S/A182 F44, F904Lの, F317L型
ステンレス鋼: ASTM/ASME S/A182 F304, F304L型, F304H型, F316, F316L型, F321, F321H型, F347H型
デュプレックススチール: ASTM A182 F51, F53, F55
合金鋼: ASTM / ASME S / A182 F11, F12 キー, F22 キー, F5 キー, F9 キー, F91の
炭素鋼: ASTM/ASME S/A105, ASTM/ASME S/A350 LF2, ASTM / ASME S / A694 / A694M, F42 キー, F52, F56, F60, F65, F70….ASTM/ASME S/A350LF2, ASTM / ASME S / A694 / A694M, F42 キー, F52, F56, F60, F65, F70….
次元
DN15-DN1500
マーキング
サプライロゴ + 標準 + 大きさ(ミリメートル) + HEAT NO +またはあなたの要件として
試験
化学成分分析, 機械的特性, 冶金分析, 衝撃試験, 硬さ試験 , フェライト試験,
粒界腐食試験, X線検査 (RTについて), PMIの, PTの, UTの, HICの & SSCテスト, 等. またはあなたの要求として

3 年保証ANSI B16.9シームレス平等とティー炭素鋼の削減