Our team handles packing, loading, transportation, and unpacking with care and professionalism.
- Safety Valve Manufacturer Since 2010
A safety valve manufacturer measured by data, not slogans.
ZOBAI Valve Co., Ltd. is based in Lishui, Zhejiang Province, China. The company focuses on the research, development, manufacturing, testing and sales of safety valves for pressure-related industrial applications.
Instead of using broad claims such as “best safety valve manufacturer,” ZOBAI presents specific manufacturing and testing information: a 20,046-square-meter production base, product pressure range of 0.6–42MPa, temperature range from -196°C to 570°C, 20+ sets of professional testing equipment and 40+ sets of processing and production machines.
| Company Focus | Safety valves for pressure equipment, pipelines, vessels and industrial systems |
|---|---|
| Registered Capital | RMB 50.8 million |
| Intellectual Property | 15 utility model patents and 2 invention patents |
| Standards Capability | GB, ASME, API, DIN, JS and related safety valve requirements |
| Application Fields | Oil and gas, chemical, petrochemical, energy, industrial gas, LNG and LPG, pharmaceutical, food and beverage, shipbuilding, HVAC and general industry |
Manufacturing Data
Factory capability buyers can verify
15
Utility model patents
2
Invention patents
20+
Professional testing equipment
40+
Processing and production machines
Manufacturing Facility
Machining, assembly and testing organized for industrial valve production
The manufacturing facility supports key production steps including component machining, surface processing, assembly, pressure testing, performance verification and shipment preparation. Real factory photos should be used here to improve buyer trust and search visibility.
Machining Capability
Production equipment supports valve body, bonnet, disc, nozzle, guide and related precision components for safety valve manufacturing.
Assembly Control
Assembly procedures focus on sealing surface protection, spring matching, component fit-up, set pressure preparation and final inspection.
Testing Area
Testing equipment supports pressure setting, seat tightness, shell pressure testing and project-specific performance verification.
Factory Tour
Show buyers the real production environment
Use this section to display real factory photos instead of decorative graphics. Recommended photos include factory exterior, machining workshop, assembly area, testing bench, warehouse and packaging area.
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Machining Workshop
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Pressure Testing
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Assembly & Shipment
Product Scope
Safety valve series for different working conditions
ZOBAI manufactures safety valves for steam, gas, liquid, corrosive media, high-temperature service, low-temperature service and back-pressure-sensitive systems. Product selection depends on medium, set pressure, temperature, discharge capacity, material, connection standard and applicable code.
Testing and Quality Control
Testing is part of the manufacturing process
Material Verification
Material confirmation supports body, nozzle, disc, guide, spring, gasket, bolt and nut selection for different media and temperature conditions.
Mechanical Testing
Testing equipment covers mechanical performance, hardness, ultrasonic thickness, alloy analysis and non-destructive inspection.
Valve Performance
Safety valve testing supports pressure setting, seat tightness, cold and hot testing and performance verification according to project requirements.
Documentation
Buyers can request relevant certificates, drawings, test records, material information and dimensional confirmation before shipment.
Standards and Engineering
Designed around pressure, temperature, material and code requirements
GB
National standard safety valves
ASME
American standard series
API
Pressure relief valve references
DIN
German standard products
JS
Related industrial standards
Pressure and Temperature Matching
ZOBAI safety valves cover 0.6–42MPa and -196°C to 570°C, supporting a range of operating conditions from low-temperature service to high-temperature steam systems.
Material Compatibility
Material options include carbon steel, stainless steel, alloy steel and application-dependent components such as PTFE, Monel and other media-specific materials.
Discharge and Seat Requirements
Selection can include discharge calculation, set pressure confirmation, back pressure review, seat tightness consideration and connection standard confirmation.
Engineering Team
A team structure built around safety valve selection, testing and delivery
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Technical Engineering Lead
Safety Valve Selection and Application Review
Responsible for reviewing working medium, set pressure, operating temperature, material compatibility, inlet and outlet connection standards and project-specific valve selection requirements.
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Quality Control Manager
Testing, Inspection and Documentation
Responsible for coordinating material verification, dimensional inspection, pressure testing, seat tightness review, inspection records and shipment-related quality documentation.
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Production Manager
Machining, Assembly and Delivery Control
Responsible for production planning, machining coordination, assembly process control, equipment scheduling and delivery communication for standard and project-based safety valve orders.
Certifications
Certificates should be readable, not hidden inside images
Certificate images should be supported by text captions. Each certificate block should include certificate name, certificate number, issuing body, issue date, expiry date and applicable product scope.
Safety Valve Special Equipment Manufacturing License
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ISO 9001 Quality Management System
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ISO 14001 Environmental Management System
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ISO 45001 Occupational Health and Safety
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Global Supply Capability
Supporting international buyers with technical communication, documents and shipment coordination
ZOBAI supports overseas industrial buyers, distributors, engineering contractors and equipment manufacturers with product selection, document preparation, packing, delivery coordination and after-sales communication.
Export support for project-based procurement
Buyers can provide working medium, set pressure, operating temperature, discharge capacity, material requirement, connection standard and quantity. The team can assist with model selection, quotation preparation and document confirmation.
Southeast Asia
Middle East
Europe
South America
Africa
Industrial OEM Projects
Global Supply Network
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Buyer Verification Checklist
What buyers can request before placing an order
Safety valve procurement requires verifiable engineering and quality information. The following checklist helps buyers confirm whether the selected valve matches the actual working conditions.
Material certificate for pressure-retaining parts
Pressure test or performance test record
Safety valve type test certificate
ISO and manufacturing license documents
Product drawing or dimensional confirmation
Set pressure and discharge capacity review
Medium and temperature compatibility review
Connection standard and material confirmation
FAQ
Common questions about ZOBAI safety valves
What does ZOBAI Valve manufacture?
ZOBAI manufactures safety valves, including spring safety valves, full-lift safety valves, pilot-operated safety valves, bellows balanced safety valves, steam safety valves, vacuum negative pressure safety valves, fan safety valves and safety relief valves.
What pressure and temperature ranges does ZOBAI support?
According to the company product catalog, ZOBAI safety valve products cover a pressure range of 0.6–42MPa and a temperature range from -196°C to 570°C.
Which standards does ZOBAI work with?
ZOBAI safety valve products cover GB, ASME, API, DIN, JS and related safety valve standards depending on product series and project requirements.
Which information is needed for safety valve selection?
Buyers should provide working medium, set pressure, operating temperature, required discharge capacity, valve size, inlet and outlet connection, material requirement, quantity and destination country.
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Meet the Professional Team
- What we offer
Our Services
Our Clients Reviews
We’ve relied on this logistics team for over three years. They’re fast, responsive, and consistently deliver on time. Their air and sea freight solutions have helped us streamline operations across multiple countries.
Customs delays used to be a nightmare until we switched to this company. Their clearance process is smooth, and they always keep us informed. It’s been a huge improvement in both speed and service.
They handled a multi-leg international shipment for us—air freight into the U.S., then trucked to multiple cities—and everything arrived exactly when and where it should. Super efficient and dependable.
As a small business owner, I never expected such personal service. They tailored a logistics plan that fits my scale perfectly, and their tracking system keeps me in the loop every step of the way.
