PTFE Lined Acid Resistant Tee Fitting

PTFE Lined Acid Resistant Tee Fitting is a three way branch pipe fitting specially optimized for acidic medium delivery lines. Inside acid chemical piping networks, tees undertake flow splitting, converging and bypass diversion tasks. The three-way intersection junction is prone to turbulent scouring, which easily wears ordinary metal tees or cheap sprayed fittings, causing early leakage. This acid special tee adopts carbon steel for pressure bearing outer body and full coverage seamless PTFE inner lining at all branch junctions. It can cooperate with lined elbows, straight pipes and reducers to build complete closed acid liquid conveying network, widely deployed in pickling workshops, inorganic acid plants and waste acid recycling stations across Southeast Asia and Middle East chemical parks.

Working Principle

1. Material working principle

· Outer body material: Forged carbon steel tee body, provides mechanical strength, bears pipeline internal pressure, thermal expansion stress and external installation impact; the forging process eliminates internal casting porosity defects, suitable for long term acid medium pipeline cyclic operation.

· Inner anti corrosion barrier: Sodium activated PTFE sheet is vacuum laminated to inner tee cavity, including three way intersect junction, branch bores and flange sealing faces. Chemically inert PTFE forms continuous isolation layer, blocks acidic fluid from touching metal substrate, prevents turbulent flow induced crevice corrosion at tee intersection. No exposed metal points inside the whole fitting.

2. Matched supporting production & site process

1. Prefabricated pipeline skid mount process: Matches factory pre fabricated acid delivery pipe skids; tees are pre assembled in workshop, reduce on site high risk hot work for acid workshops.

2. Acid liquid shunting & converging process: Applied for main pipe flow split to multiple branch acid feeding pipelines, or merging multi source waste acid flow into public collecting main pipe.

3. Bypass sampling & safety relief branch process: Reserve tee branch for on line acid liquid sampling port or safety overflow branch of acid storage tank peripheral pipeline.

4. Whole set fluorine lined closed loop process: Connect with PTFE lined acid resistant storage tank, conveying pipeline and elbow, constitute fully isolated acid medium closed circulation system, avoid acid mist leakage.

Complete Technical Specification Table

Professional Model Selection Suggestions

1. Tee form selection: Main pipe and branch pipe same caliber choose equal diameter tee; when branch flow needs to shrink pipe size, select reducing tee to match actual pipeline caliber.

2. Lining thickness selection: Static flow ordinary dilute inorganic acid select standard 2 mm lining; high concentrated acid with strong turbulent scouring at three way intersection upgrade to 3 mm thickened PTFE lining.

3. Flow condition assessment: If the tee position faces frequent flow switching and violent turbulent impact, inform technical team to enhance local lining bonding craft at three way intersect junction.

4. Flange matching requirement: Must adopt HG20536 full lined flange, do not mix with ordinary un lined metal flange, avoid acid corrosion at connection gap.

5. Process oriented configuration: For sampling / overflow bypass branch, confirm branch opening position and branch length in advance for factory pre fabrication, forbid on site secondary drilling on tee body.

Product Performance Comparison Table

Why Choose Zhuoyan For Acid Resistant Tee Fitting？

1. Forged tee blank as raw material, abandon low grade cast tee, eliminate hidden sand hole defect which may cause acid medium penetration failure.

2. Focus reinforcement treatment for three way intersect junction, this vulnerable turbulent scouring area gets enhanced vacuum lamination craft, greatly lower tee position leakage failure rate in acid pipeline.

3. Strict double inspection standard: special spark scanning focusing on three way intersection besides conventional full surface spark and hydraulic test.

4. Professional acid medium technical support: provide pipeline shunting scheme suggestion according to user’s acid concentration and flow rate parameters.

5. Unified HG20536 flange standard, seamless docking with our full series acid resistant lined pipes, elbows and storage tanks for one stop whole pipeline procurement.

6. Complete export documents supply, short lead time for standard stock specifications, 5 year dedicated lining warranty for acid medium piping fittings.

FAQ

Q1: Can this PTFE Lined Acid Resistant Tee Fitting work for long term high concentrated sulfuric acid and hydrochloric acid shunting pipeline?

A: Yes, adopt 3 mm thickened lining option when facing high concentration acid with violent turbulent scouring at three way intersection.

Q2: What is the difference between equal diameter tee and reducing tee?

A: Equal diameter tee means main pipe and branch pipe share identical nominal diameter; reducing tee is applied when branch side pipe caliber is smaller than main pipeline.

Q3: Is on site drilling or opening allowed on tee body to add extra branch?

A: Strictly forbidden. Drilling will destroy integral PTFE lining. All branch positions and sizes need to be confirmed before factory pre fabrication.

Q4: Can this tee match with existing PTFE lined acid resistant pipeline system?

A: It adopts HG20536 unified full lined flange standard, can be directly assembled with supporting lined pipe, elbow and storage tank equipment.

Q5: What inspection will every acid resistant tee undergo before delivery?

A: Each fitting receives full wall spark scanning (emphasis scan three way intersection position) plus hydraulic pressure holding tightness test.

Q6: What items are covered within warranty scope?

A: Forged carbon steel tee body 10-year structural warranty; PTFE lining 5-year warranty, exclude artificial scratch, mis installation and improper medium application damage.