Gate Valves Β· Wedge Gate Valves
WCB Flanged Cast Steel Gate Valves
WCB flanged cast steel gate valves are the carbon steel wedge execution for steam, oil, gas and chemical lines beyond the cast iron envelope: the benchmark execution covers DN40 to DN600 at PN10/16, flanged to ANSI, EN 593, DIN 2501 and DIN 3202 F4. The pressure envelope can be supplied in WCB, WC1, WC6, WC9, C5, C12 and stainless grades, with 2Cr13-family trim, graphite-based gaskets and packing, working to 570 C on the trim set and -20 to 425 C across the execution.
Part of the Wedge Gate Valves family
Last updated: 2026-11
Specifications
| size range | DN40 to DN600 |
|---|---|
| pressure class | PN10/PN16 |
| body materials | WCB |
| stem materials | 2Cr13 stainless steel |
| temperature range | -20 to 425 C |
| design standards | ANSI, EN 593, DIN 2501 PN6/10/16, DIN 3202 F4 |
| seal materials | WCB + 2Cr13 stainless steel |
| pressure envelope materials | WCB, WC1, WC6, WC9, C5, C12, ZGCR5MO, ZG1CR18NI9TI, ZG1CR18NI12MO2TI |
| trim materials | 2Cr13, 38CrMoal, 25Cr2MoV, 1Cr18Ni9Ti, 1Cr18Ni12Mo2Ti |
| gasket materials | reinforced flexible graphite, 13Cr / flexible graphite, 08 soft steel, 0Cr18Ni9TI, 0Cr17Ni12Mo2Ti |
| packing materials | flexible graphite, reinforced flexible graphite |
| max trim temperature | 570 C |
| medium | Nitric acid, acetic acid, water, oil, gas, alkaline liquids |
Application & selection guidance
Select this execution when line temperature or medium rules out cast iron wedge gates: high-temperature steam (WC6/WC9 envelopes within the -20 to 425 C window), hydrocarbon and acidic media per the declared chemical window. Pick the envelope grade and trim set against temperature and corrosion duty, the graphite-family sealing against the medium, and PN10/16 flanging to the pipe standard.
Frequently asked questions
When is a cast steel wedge gate the right choice over cast iron?
When temperature or medium exceeds the cast iron envelope: the benchmark execution works from -20 to 425 C, offers low-alloy (WC1, WC6, WC9) and corrosion-resistant (C5, C12, stainless-grade) envelopes, and covers nitric acid, acetic acid, water, oil, gas and some alkaline liquids.
Which trim and sealing materials are used?
The benchmark page declares 2Cr13, 38CrMoal, 25Cr2MoV, 1Cr18Ni9Ti and 1Cr18Ni12Mo2Ti trim sets, flexible-graphite and 13Cr or soft-steel gaskets, and flexible-graphite packing - a set the page rates to 570 C on the trim.
What information is needed to quote one?
Nominal size within DN40 to DN600, rating (PN10/16), the medium and maximum temperature - those fix the envelope grade (WCB through C12 or stainless) and the trim set. Flange standard follows from the mating pipe class (ANSI, EN 593, DIN 2501 or DIN 3202 F4).
Ordering & documentation
Documents
Ask for the documentation set you need with the inquiry β typical items for this execution (material certificates, test reports to the listed inspection standard, dimensional drawings) are confirmed and supplied with the quotation.
Quotation
A quotation-ready inquiry states: nominal size and pressure rating, body and seat material preference, end connection, operation, and the service medium with temperature. Typical values on this page are benchmark reference ranges; the binding values are confirmed at quotation.
Sample & supply
Supply terms, order quantities and lead time are agreed per order β state the destination country and required schedule with the inquiry.
Storage & shipping
Store valves with seats and seals protected from UV, ozone and deformation, keep end-face protectors on until installation, and for elastomer- or PTFE-seated executions avoid prolonged outdoor storage β seat compounds age fastest in direct sunlight and freezing conditions.
Knowledge: selection guides
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