SIL safety performance certification
SIL Certificate
SIL Certificate
Health Permit
A ball valve with a self-sealing mechanism for the valve body
A ball valve that is easy to assemble and disassemble
A high-sealing butterfly valve (invention)
A new type of dual-valve integrated extendable valve
Fluorine-lined check valve
Single gate valve
Fixed ball valve
Pneumatic gate valve
Safety Integrity Level (SIL) certification per IEC 61508 verifies that TANGGONG valves meet functional safety requirements for use in hazardous and critical-process environments, including oil & gas, petrochemical, and power generation applications.
Our health permit certifies that selected valve products comply with sanitary standards for potable water systems and food-grade processing applications.
These patents protect TANGGONG's proprietary core technologies, including self-sealing valve body mechanisms, rapid assembly ball valve designs, high-sealing butterfly valve structures, and integrated dual-valve systems — each representing a significant advancement in valve engineering.
Our 16 utility model patents cover structural improvements and design optimizations across ball valves, gate valves, butterfly valves, check valves, regulating valves, and fluoropolymer-lined valves — enhancing performance, durability, and operational efficiency.
View API 6D, API 600, API 624, CE, EAC, and ISO 15848-1 qualification certificates.
View TANGGONG's association memberships, manufacturing excellence awards, and credit rating certificates.