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VALVE MANUFACTURER SINCE 2019
Red Zebra Valve RED ZEBRA VALVE FULLY WELDED BALL VALVES
Gear Operated Heating Ball Valve — DN15 to DN1400, PN25 | Red Zebra Valve
DISTRICT HEATING · GEARBOX · CARBON STEEL

Gear Operated Fully Welded Ball Valve

MODEL BALL VALVE-DN300-PN25-WE-3

The gearbox version of the heating series: a fully welded ball valve that turns by hand at sizes where a lever no longer gives enough torque. Forged carbon steel body, PTFE seat, welded ends and an ISO 5211 mounting pad on every size — DN15 to DN1400 at PN25. Used on the larger branches and trunk lines of district heating networks.

SIZE
DN15 – DN1400
PRESSURE
PN25
BODY
ASTM A105 / P235GH
TEMPERATURE
−45…+200 °C
WHY THIS SERIES

No actuator to maintain

A reduction gearbox brings a large valve within handwheel effort — no power supply, no actuator to service.

Gearbox fitted from DN125

Smaller sizes are normally supplied lever operated; the ISO 5211 pad is machined on every size either way.

Tested and traceable

Shell and seat pressure-tested to EN 12266-1, and traceable by heat number.

Compare with the other series
TECHNICAL DATA

Specifications & standards

Values below are for the standard configuration. Other pressure ratings, trims and end connections are available on request.

Design standard
ASME B16.34 · EN 12516-1
End-to-end
EN 12982 · ASME B16.10
End preparation
ASME B16.25 · B16.11 · EN 12627
Pressure test
EN 12266-1 · TSG D7002-2006
Body material
ASTM A105 · P235GH (1.0432)
Ball material
A105 / P235GH + ENP plating
Stem material
AISI 4140 (42CrMo4 / 1.7225) + ENP
Seat seal
PTFE + Viton O-ring
Temperature range
−45 … +200 °C
Operation
Gearbox + handwheel · ISO 5211 F12 – F30
End connection
WE · welded ends (BW / SW)
Coating
Epoxy · 3PE for buried service

NOT FOR STEAM SERVICE — PTFE seat, suitable to +200 °C. For steam or higher temperatures ask for the metal-seated version.

SIZE TABLE

Dimensions & weight

Taken from the verified EN / DIN tables for this body. Sizes in this series: DN15 – DN1400.

DN PN L (MM) H (MM) WEIGHT (KG)
DN1252535036530
DN1502540042255
DN2002540052094
DN25025580555180
DN30025680637245
DN35025760680430
DN40025914750670
DN5002510808201100
All dimensions in millimetres · weights in kilograms · DN15 – DN50 supplied PN40, DN65 – DN500 supplied PN25FIG. 1

DN600 – DN1400 is made to order in this series — L, H and weight are issued with the quotation.