About TSU
Tiansu (Tianjin) Valve Group Co., Ltd is a comprehensive, technology-based enterprise integrating valve research and development, production, sales, and after-sales service. The company primarily develops, manufactures, and sells various types of valves for natural gas, fully welded ball valves, carbon steel ball valves, HVAC-specific valves, fire protection valves, water supply and drainage valves, and water conservancy control valves, among other series of products.
Our products are centered in Tianjin and radiate to all parts of China. They are exported to multiple countries and regions, forming a challenging global marketing network. Upholding the philosophy of "Based in Tianjin, Serving the World," the company takes Tianjin, known as the hometown of Chinese valves, as its foundation. Relying on advanced technology and rapidly industrializing scientific achievements, we continuously develop high-tech valve series to meet the needs of domestic and international customers. In the future, the company will seize opportunities to internationalize our product series, industrialize smart technologies, expand operational scale, and standardize internationally, aiming to bring our products to the world stage.
Tiansu (Tianjin) Valve Group Co., Ltd pursues the mission of "Gather Strength and Create the Future," and consistently adheres to the business philosophy of "Sincerity, Integrity, Innovation, Professionalism." We provide high-quality services and excellent products to ensure our customers purchase with confidence and use with satisfaction. We sincerely welcome domestic and international clients to visit, guide, negotiate business, and develop fruitful cooperation.
Our History
2022: To meet the rapid development needs of the company, it was upgraded to a group company (Tiansu (Tianjin) Valve Group Co., Ltd.). The company's products officially entered the water industry market and obtained health permits for their products.
2021: The company implemented systematic and standardized management, effectively improving product quality and market services, thereby promoting rapid enterprise growth.
2020: In response to national fire safety regulations, the company obtained certification for numerous fire protection products rated at 1.6/2.5 MPa.
2019: Established offices in Guangzhou, Beijing, Hunan, Guangxi, Chongqing, Guizhou, and other regions, promoting the Tiansu brand nationwide.
2018: Reorganized the corporate structure, adjusted the business direction, and formulated medium- and long-term development strategies.
2015: The company was founded and began promoting the Tiansu brand in the market.
2009-2014: From September 2009, operated in an OEM mode, producing valves for domestic valve brands under subcontracting agreements.
Product Application
1. Natural Gas
● Core Application: Primary clean energy source.
● Specific Scenarios:
○ Power Generation: Fuel for gas turbine power plants.
○ Industrial Fuel: Heating for boilers, kilns, furnaces; metal processing, glass & ceramic production.
○ Residential & Commercial: Cooking, heating, hot water in homes / restaurants; heating & cooling in commercial buildings.
○ Chemical Feedstock: Manufacturing fertilizers (ammonia / urea), methanol, hydrogen, plastics, etc.
○ Transportation Fuel: Compressed Natural Gas (CNG), Liquefied Natural Gas (LNG) for buses, trucks, ships.
○ Pipeline Transmission: Long-distance, high-pressure trunk pipelines.
2. Fully Welded Ball Valve
● Core Advantages: Zero leakage, high strength, long service life, maintenance-free, especially suitable for demanding environments.
● Key Applications:
○ High-Pressure / Ultra-High-Pressure Natural Gas & Oil Transmission Pipelines: Mainlines, distribution stations, storage facility inlets / outlets, ensuring high-pressure sealing and pipeline safety.
○ Medium / High-Pressure City Gas Distribution Networks: Gate stations, pressure regulating stations, critical nodes; suitable for direct burial.
○ Liquefied Natural Gas (LNG): Receiving terminals, liquefaction plants, storage tanks, loading / unloading systems for transport ships / trucks (cryogenic service).
○ Chemical & Petrochemical: Piping for highly toxic, highly corrosive, flammable, or explosive media requiring absolute sealing.
○ Thermal Power / Heating Networks: High-temperature hot water / steam mainlines.
○ Subsea Pipelines: High pressure resistance, corrosion resistance, extremely high reliability requirements.
3. Carbon Steel Ball Valve
● Core Characteristics: Cost-effective, high strength, good pressure resistance, suitable for a wide range of media.
● Typical Applications:
○ Industrial Water Systems: On / off control for cooling water, circulating water, process water.
○ Oil & Oil / Gas Products: Piping for crude oil, fuel oil, lubricating oil under non-extreme conditions.
○ General Gases: Air, nitrogen, inert gases, low-pressure steam, etc.
○ General Industrial Processes: Chemical, power, paper, food & beverage (where no special requirements exist) for non-corrosive / mildly corrosive media.
○ Building Facilities: Auxiliary piping in boiler rooms, pump houses, etc.
4. HVAC-Specific Valves
● Core Objective: Precise control, hydraulic balancing, energy efficiency, stable comfort.
● Main Types & Applications:
○ Dynamic Balancing Valve / Pressure Independent Control Valve (PICV): Core energy-saving component! Maintains precise water flow control to terminals (fan coil units, air handling units) regardless of system pressure fluctuations, ensuring comfort and significant energy savings.
○ Static Balancing Valve: Manually set resistance during commissioning to achieve initial hydraulic balance in the system.
○ 2-Way / 3-Way Control Valves: Modulate water flow through heat exchangers linked to thermostats.
○ Electric On / Off Valves / Ball Valves: Open / close control for terminal equipment like fan coil units.
○ Check Valve: Prevents backflow of hot / cold water, protects against pump shutdown water hammer.
○ Differential Pressure Control Valve: Maintains stable pressure differential at key points in the network, protecting terminal equipment.
5. Fire Protection Valves
● Core Requirements: Absolute reliability, rapid response, excellent sealing, strict certification.
● Key Applications:
○ Alarm Valve Assemblies: Core of wet pipe, dry pipe, pre-action systems; controls water entry into the network and triggers alarms.
○ Deluge Valve: Controls rapid, high-volume water supply for open systems (e.g., deluge, water curtain).
○ Supervisory (Signal) Valve: Installed on critical control valves (e.g., zone valves, pump discharge valves); signals open / closed status to the fire alarm control panel.
○ Check Valve: Prevents backflow contamination of municipal water supply, maintains system pressure.
○ Pressure Reducing Valve: Protects downstream piping and equipment from overpressure.
○ Drain Valve / Test Valve: For testing and draining piping.
○ Fire Department Connection (FDC) Control Valve: Controls connection for fire engine water supply.
6. Water Supply & Drainage Valves
● Core Functions: Isolation, regulation, control, protection of water supply and drainage systems.
● Application Scenarios:
○ Water Supply:
1. Municipal Networks: Water intake, water treatment plants, isolation / regulation in main networks (gate valves, butterfly valves, ball valves), air release valves, pressure reducing valves, check valves.
2. Building Water Supply: Isolation on service lines, risers, branch lines (ball valves, globe valves), pressure reducing valves, check valves, valves upstream / downstream of water meters.
3. Pump Stations: Pump suction / discharge isolation, check valves.
○ Drainage:
1. Building Drainage: Valves rarely used; isolation valves (globe or ball valves) may be installed at specific points for maintenance.
2. Wastewater Treatment Plants: Isolation, regulation (gate valves, butterfly valves, knife gate valves), check valves, air release valves, sludge drain valves for various process lines.
7. Hydraulic Control Valves
● Core Role: Regulate water flow, ensure safety, enable automation.
● Main Types & Applications:
○ Pressure Reducing Valve: Precisely controls downstream pressure, protecting pipelines and equipment.
○ Pressure Sustaining Valve / Relief Valve: Maintains pressure upstream of the valve above a set value, or automatically relieves water during overpressure.
○ Slow-Closing Check Valve: Prevents water hammer during pump shutdown, protecting pumps and pipes.
○ Flow Control Valve: Precisely limits or maintains a constant flow rate in a pipeline.
○ Electric / Hydraulic/ Pneumatic Control Valves: Remote automated flow or pressure regulation in large pumping stations, hydropower plants, water diversion projects (often large-diameter butterfly, gate, or ball valves with actuators).
○ Air Release Valve: Expels air from pipelines, preventing air locks and cavitation.
○ Sludge Drain Valve / Flushing Valve: Periodically discharges sediment and impurities from pipelines or tank bottoms.
Our Certificate
ISO, CE, etc.
Why Choose TSU
Modern Manufacturing Philosophy
The company adheres to the principle of quality first, adopts advanced production equipment, implements lean production management and TQC quality management, continuously improves the quality and hierarchy of products, and wins the trust of customers at home and abroad with brand charm and good reputation, thus enhancing the market competitiveness of Tiansu.
Professional & Control
The company strictly follows the international quality system standards during the production process; the Production Department must conduct pre-production inspection during the material picking process, and shall inspect each process in the production process. After the process is completed, the product must be tested in all aspects.
Quality System
The company consistently implements the ISO9001 quality management system strictly, and implements quality control throughout the full process from market research, product design and development, raw material purchase, processing and assembly, factory inspection, to after-sales service.
Excellent Quality, Wholehearted Service
Based on customers' personalized and high-quality needs, we continuously improve and enrich our product offerings to provide customers with more comprehensive and high-quality services.
Our Service
Pre-sales Service
A professional team offers product selection consulting, customized technical solutions, and quotation services. Technical experts analyze and evaluate based on operational requirements (such as medium, pressure rating, etc.), providing optimized valve selection recommendations; we also tailor technical plans considering on-site installation and system integration needs to ensure feasibility and advanced features; during the quotation process, a transparent and reasonable price list is provided, including product costs and other details.
During-sales Service
Monitor production progress in real-time to ensure on-time delivery and assist with installation guidance. After order confirmation, production stages are tracked via a project management system with timely feedback on progress, and issues related to delivery are addressed through negotiations. A comprehensive quality inspection is performed before product shipment to ensure compliance with standards and contract requirements. During installation, technical personnel offer remote support to ensure the correct operation of the valve system.
After-sales Service
Provide 24-hour online support with rapid response to customer needs, offering solutions through remote diagnostics. Maintain sufficient inventory of spare parts to ensure timely supply when needed. Conduct periodic system health checks and evaluations, providing professional maintenance advice and servicing plans to eliminate potential hazards and extend device service life.