What is the difference between a trunnion ball valve and a floating ball valve?

A trunnion ball valve has the ball supported by upper and lower trunnions (stems), making it ideal for large diameter (DN150+) and high-pressure applications (Class 600–2500) with lower operating torque. A floating ball valve has the ball free to float against the downstream seat, providing bubble-tight sealing for smaller sizes (DN15–DN250) at lower to medium pressures (Class 150–1500).

What certifications do TANGGONG ball valves have?

TANGGONG ball valves are certified to API 6D (pipeline ball valves), API 607 (fire-safe), CE (European), TUV, SGS, and ISO 9001:2015. The manufacturing facility in Wenzhou, China has been certified since 1990.

What size and pressure range are available for TANGGONG ball valves?

TANGGONG manufactures ball valves from DN15 (1/2") to DN2000 (80") in sizes, and from Class 150 (PN20) to Class 2500 (PN420) in pressure ratings. Custom sizes and pressure classes are available on request.

Which industries use TANGGONG ball valves?

TANGGONG ball valves are used in oil & gas pipelines, petrochemical plants, power stations (thermal, hydro, nuclear), marine vessels, LNG terminals, water treatment, and metallurgical industries across 35+ countries.

What is the lead time for ball valve orders?

Standard ball valve orders are typically delivered within 3–7 business days for in-stock items. Custom or large-scale orders typically require 4–8 weeks depending on specifications and quantity.

Pneumatic GB Ball Valve

Name: TANGGONG Industrial Ball Valve Series
Brand: TANGGONG VALVE GROUP
Availability: InStock
Rating: 4.7 (56 reviews)

Design and manufacturing: GB/T12237
The structural length: GB/T12221
Connection forms: HG/T20592-20605 GB/T9112-91244
Inspection and test: GB/T13927
Caliber: DN15~DN300 1/2"~12"
Pressure temperature level: GB/T12224
Pressure: PN1.0MPa~PN16.0MPa

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