Industrial Safety: We Only Provide Proven Solutions

Industrial safety — we only do the verified kind

Many factories have safety equipment, but systems that truly withstand extreme conditions and can pass international insurer audits are rare.

Shanghai Tengxi (TKC) does exactly that rare thing.

About TKC

Shanghai Tengxi Construction Engineering Co., Ltd. (TKC), founded in 2005, headquartered in Shanghai. Focused on explosion protection and fire protection engineering for high-risk industries such as petrochemical, new energy, semiconductor, and data centers, TKC centers on a "science-based protection" philosophy, implementing FM international insurance loss-prevention standards into auditable, verifiable engineering practice.

TKC holds the extremely rare "dual FM qualifications" in Asia:

◇ FM4440 certified product manufacturer — explosion-protection products certified by destructive testing under real explosion conditions
◇ FM4991 certified firestop contractor — one of the very few teams in Asia holding both product and installation certifications

TKC's three main service areas

• Industrial explosion protection systems

Explosions cannot be completely prevented, but their consequences can be constrained by engineering design.

Building-level DLC explosion protection systems follow FM DataSheet 1-44 "damage-limitation construction" standards. The TKC-01 venting fastener (break load precisely calibrated to 700 N, FM4440 certified) works in concert with the TKC-JS traction cable to form an "active venting + passive restraint" double closed-loop — within milliseconds of an explosion occurring, active pressure relief and restraint of panel ejection turn "random destruction" into "scientific management."

Equipment-level explosion protection systems target dust collectors, silos, dryers, and process piping, with venting, isolation, and suppression configurations selected against the relevant product, model, and project conditions:

The applicable scope, design parameters, and installation conditions for equipment venting, suppression, and isolation products must be confirmed against the relevant technical documentation and project files.

• Containerized hazardous chemical storage

This is TKC's key product line — encapsulating DLC explosion-protection logic into ISO-standard containers to form rapidly deployable, movable, and expandable hazardous-material safe storage units.

The design logic is not "store by material classification," but engineering judgment based on accident physical mechanisms: where there is no deflagration risk, use fire-resistant types; where overpressure risk exists, introduce DLC explosion-venting types. Five product models cover all industrial site scenarios:

The entire series complies with FM, NFPA, GB safety supervision and fire protection compliance requirements. This is not an iron box; it is a systems engineering solution built on risk mechanisms.

• Firestopping and fire-zone integrity

Firewalls, floors, and fire doors form the core passive fire-protection barriers of a building. But every penetration left by pipes and cables can render an entire firewall meaningless — especially in data center protected areas that rely on gaseous fire suppression systems, where airtightness directly determines suppression success.

FM's core insight: the quality of firestop materials is only the foundation; installation quality is the decisive factor in fire protection success.

◇ FM4991 firestop engineering led by an FM-certified Designated Responsible Individual (DRI), using only FM/UL certified materials and methods, establishing TagsLogs traceable records for every firestop point, including photos, location, installers and material batch numbers, meeting insurance audit and compliance inspection requirements.

◇ Fire-zone airtightness testing follows NFPA 2001 / FM 5-32 standards, using Door Fan Test bidirectional positive/negative pressurization to accurately calculate the effective hold time of gaseous extinguishing agents, combined with smoke generators and infrared thermography to locate all leak points.

TKC can issue third-party independent inspection reports with ILAC international accreditation, directly meeting the highest compliance audit requirements of FM and other international insurers and multinational corporate headquarters — globally accepted without secondary verification.

Test failed? TKC immediately deploys the FM4991-certified team for on-site remediation, retests, and delivers the final compliance report upon passing. Others can only issue a "non-compliance report"; TKC delivers results.

Why choose TKC

Unverified safety is a liability waiting to explode. TKC never delivers isolated products; it delivers a complete asset protection system that can pass the world's most stringent insurance audits.