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Welded tee

key word:Heat exchange element


Product description

Welded tee

 

1. Introduction

1.1. Purpose

Welded tee is mainly used as the connector of power station pipeline, and can also be used as the connector of other pipelines.

1.2. Structural features

1.2.1. Structural form series: T-shaped, regular Y-shaped, oblique Y-shaped.

1.2.2. Series of reinforcement methods: thick wall reinforcement, single reinforcement and reinforcement plate. Generally, thick wall reinforcement is used for high pressure and high temperature pipeline.

1.2.3. Interface series: equal diameter, different diameter (big small small, big one small big).

1.2.4. Size series: generally, it is the size series of outer diameter pipe.

 

2. Main technical parameters and product appearance

2.1. Main technical parameters (see table 74-1)

Table 74-1 main technical parameters of welded tee

No. Item Data
1 Structure type T-shaped, regular Y-shaped (or spherical), oblique Y-shaped
2 Strength type Determination of parameters
3 Design temperature T () Determination of parameters
4 Design pressure p [MPa(g)] Determination of parameters
5 Interface specification a(mm):IDXT or ODXT Determination of parameters
6 Interface specification b(mm):IDXT or ODXT Determination of parameters
7 Interface specification c(mm):IDXT or ODXT Determination of parameters
8 Steel grade Determination of parameters
9 Angel θ(°) Determination of parameters
10 Straight length L1 (mm) Determination of parameters
11 Straight length L2 (mm) Determination of parameters
12 Straight length L3 (mm) Determination of parameters
13 Stress increase factor SIF Determination of parameters
14 Weigh (kg) Determination of parameters

2.2. Product appearance (see figure 74-1)

 

3. Selection method

The structure series, design parameters, interface specifications, steel grade, supply status and quantity are given, and the ordering drawings and technical requirements are provided. In addition to the requirements provided by users, the groove forms shall be in accordance with DL/T 869-2004 technical specification for welding of thermal power plants.