Titanium reactor selection: TA2/TA9 + PN16 + GB150 working table

Published by Engineering Team, Shaanxi Qianyi Tuoda Technology Co., Ltd on 2026-09-06

Titanium Reactor Selection: TA2/TA9 atmospheric equipment

Chemical plant procurement, technicians, design institute process engineers often ask: "titanium reactor in the end how to choose?TA2 still TA9？"This paper gives a set of 8 Step selection Follow the sequence of "medium → pressure → designation → structure → standard → wall thickness → case → pit avoidance", After watching it, he could land.

I. First step · Lock medium (5 Comparison table of typical working conditions)

titanium reactorNot "universal corrosion resistance."--Different media, titanium brand, wall thickness, structure all change.

Key pit-avoidance:

• Concentrated sulfuric acid (50%) titaniumdoes not resist corrosionSteel lining must be used. PTFE or Hastelloy
• HF, fluoride mediumTitanium is strictly prohibited(HF dissolves titanium protective film)

II. Step 2 · Locking pressure (PN16 / PN25 / PN40 decision tree)

Determination of pressure ratingWall thickness, sealing surface, flange structure--Choose the wrong one, and the whole kettle will be scrapped.

Selection formula:

• polymerization reaction → PN25 take off
• general synthetic → PN16 enough
• vacuum condition → Additional calculation (to add outer reinforcing ring)

III. Step 3 · Selection number (TA1) / TA2 / TA9 / TA10 / TC4 decision table)

80% Selection of titanium reactors TA2--This is the industry default baseline.

• palladium-containing noble element 30-50% → use TA9 It's a bargain.
• molybdenum nickel noble 20-30% → use TA10 It's a bargain.

IV. Step 4 · Select Structure (5) Comparison of similar kettle types)

Customer asks "Which one is most commonly used"--answer: Closed jacket + mechanical stirring, accounting for orders 70% The above.

V. Step 5 · Standard and sealing surface (GB/ASME/HG) Comparison table)

Titanium Reactor Performance Standardmust be clearly- This is the legal basis for inspection and acceptance.

Seal surface comparison table:

VI. Step 6 · Wall thickness check (DN800 PN16 Substitute in calculation)

Give me a real example,You can do it yourself.：

Known parameters:

• Inner diameter of kettle body Di = 800 mm
• design pressure P = 1.0 MPa
• design temperature T = 100°C
• Material: TA2 panel
• weld coefficient φ = 0.85
• corrosion allowance C2 = 1 mm

Calculation (GB) 150 Formula):

δ = (P × Di) / (2 × [σ] × φ - P) + C2 = (1.0 × 800) / (2 × 106 × 0.85 - 1.0) + 1 = 800 / 179 + 1 = 4.47 + 1 = 5.47 mm

Conclusion: Take 6 mm thickness of plating(Round up, leave margin).

Common wall thickness quick lookup table:

Step 7 · Self-delivery case (true caliber · desensitization)

data for following cases are from actual delivery records Baoji Workshop for Qiyi Tuoda, Shaanxi,Desensitization authorized by client:(The following equipment are atmospheric non-standard equipment)