Technical review
Size, rating, medium, temperature, connection, standards and actuation are checked before production.
Tianjin Greysen Flowtech
Manufacturing capability behind dependable valve performance.
Greysen supports industrial valve projects from application review and material selection through production, assembly, pressure testing, documentation and export packing.
Industrial valve manufacturing
Built around the specification—not only the catalogue.
Greysen supplies butterfly, gate, ball, check, air, balancing and automatic control valves for water treatment, HVAC, power, chemical and general industrial systems.
Our team reviews the medium, pressure, temperature, pipeline standard, required shut-off and operating method before confirming a configuration. This engineering-first process helps distributors, contractors and OEM customers reduce approval delays and site mismatches.
Application reviewMaterial matchingActuator sizingProject documentation
Production capability
Practical control through each manufacturing stage.
Actual workshop images from machining, coating, assembly and inspection.
Quality workflow
Traceable checks from enquiry to shipment.
Inspection and documentation scope is confirmed with the order and project specification.
Incoming control
Body, trim, stem, seat and sealing materials are verified against the agreed configuration.
Pressure testing
Shell and seat testing is performed to the applicable standard and approved inspection plan.
Final release
Operation, marking, coating, packing and required documents are reviewed before dispatch.
OEM & project service
Support for distributors, contractors and equipment builders.
Send a valve list, datasheet, drawing or operating conditions. We can help compare valve types, confirm material combinations, prepare drawings and coordinate manual, pneumatic or electric operating packages.
- Technical quotations and deviation review
- General arrangement drawings and data sheets
- Inspection, test and material documentation by agreement
- Export marking, packing and shipment coordination
