xiaoxiaocao113@163.com Mon–Sat 08:00–18:00 (GMT+8)
VALVE MANUFACTURER SINCE 2019
Red Zebra Valve RED ZEBRA VALVE FULLY WELDED BALL VALVES
Request a Quote
HOME / ABOUT US
ABOUT US · YONGJIA, WENZHOU, ZHEJIANG

One welded body, built under one roof.

We make fully welded ball valves for gas, district heating and oil & gas pipelines — including the welded static balancing valve. Bodies in forged carbon steel and stainless, from DN15 to DN1400, PN16 to PN420. Hydro-tested and traceable by heat number.

SINCE 2019
DN15 – DN1400
PN16 – PN420
OEM & ODM

Four series. One welded body.

Pick the operating type that matches your pipeline. Body, seal design and test standard stay the same — there is no body joint to leak from and no gasket to replace.

Lever for smaller isolation points, gear where the torque needs reducing to hand effort, extended stem and 3PE for direct burial, and V-port trim with a graduated locking dial where the branch has to be balanced rather than simply shut off.

RANGEDN15 – DN1400
PRESSUREPN16 – PN420
TEMPERATURE−45 … +200 °C
BOREFull & reduced
MANUFACTURING IN-HOUSE · YONGJIA, WENZHOU, ZHEJIANG

Machined, assembled and tested under one roof.

Bodies, balls and stems are machined on CNC centres, then welded, assembled and hydro-tested before coating. The workshop in these photos is the one that builds your order.

Machining workshop
Machining workshop
CNC machining centre
CNC machining centre
Pressure test bench
Pressure test bench
Assembled & tested stock
Assembled & tested stock
01 CNC Machining Bodies, balls and stems machined in-house on CNC centres.
02 Pressure Testing Every valve shell- and seat-tested to EN 12266-1 before coating.
03 Heat Traceability Each valve carries a heat number matched to its test record.
04 In-House Assembly Welding, assembly and 3PE or epoxy coating finished on site.
HOW WE WORK

Quoted, approved, then built

Nothing is welded before you have approved the dimensional drawing.

01 · You send the specs
Size, pressure, material and quantity — a photo of the nameplate is enough.
02 · We confirm and price
Feasibility check, drawing for approval, quote in USD or EUR, usually within 24 hours.
03 · Drawing approval
Dimensional drawing issued before the body is welded, so the length is fixed before metal moves.
04 · Build and test
Machining, welding, EN 12266-1 shell and seat test, then coating.
05 · Ship
Test report and packing list with the shipment. FOB Ningbo / Shanghai.
NOTE

Not for steam service

PTFE seat, suitable to +200 °C. For steam or higher temperatures ask for the metal-seated version.