Flanged gate valve with a red handwheel on an outdoor process pipe rack

Duty-rated valves for process service.

Selected by medium, pressure-temperature rating and leakage class.

Request a quoteSize by duty
Certified toAPI 6D · API 607 · PED
Match the valve to the duty

Specified by medium, sized by stress.

Flanged gate valve on a process lineCast steel globe valve on an insulated steam header in a boiler houseStainless flanged ball valve on an acid transfer line in a chemical plantCryogenic ball valve with extended bonnet and frost on an LNG skid

Chlorine / dry gas

Body / trim
CF8M · 316L
Seat
PTFE
Temperature
to +150 °C
Leakage
ISO 5208 A
Match by medium

Steam & condensate

Body / trim
WCB · CF8M
Seat
13%Cr / Stellite
Temperature
to +450 °C
Leakage
ISO 5208 A
Match by medium

Sulphuric acid

Body / trim
316L · Alloy 20
Seat
PTFE / PFA
Temperature
to +120 °C
Leakage
ISO 5208 A
Match by medium

LNG / ethylene

Body / trim
F316L · 304L
Seat
PCTFE
Temperature
to −196 °C
Leakage
BS 6364
Match by medium
Pressure-temperature ratings

PN and Class, derated by temperature.

  • PN 10Class 150to +425 °CWater & utility
  • PN 40Class 300to +425 °CSteam / hot oil
  • PN 63Class 600to +300 °CDuty isolation
  • PN 100Class 900to +200 °CHigh-pressure
Check ratings
Valve body with a stamped pressure-temperature rating plate in the workshop
Valve families by duty

Six families, published to spec.

Gate, ball, butterfly, check, globe and cryogenic — 1″ to 40″.

Wedge Gate ValveRH-WCE
2″–24″ · PN 10–100 · WCB / CF8M / 316L

Wedge Gate Valve

Trunnion Ball ValveRH-BTJ
1″–20″ · Class 150–1500 · A105N / 316 / Duplex

Trunnion Ball Valve

Triple-Offset ButterflyRH-TFB
3″–40″ · Class 150–600 · CF8M / Duplex

Triple-Offset Butterfly

Swing Check ValveRH-KSW
2″–20″ · Class 150–900 · WCB / LC1 / CF8M

Swing Check Valve

Globe & Control ValveRH-GTC
1″–14″ · Class 150–2500 · WCB / 316L

Globe & Control Valve

Cryogenic Ball ValveRH-SLR
1″–10″ · Class 150–800 · F316L / LF2

Cryogenic Ball Valve

Size your valve by duty

Five axes, one working selection.

Select the duty; carry the resulting spec into your enquiry.

Build my spec
Valve assembly hall with flanged valve bodies on pallets and an overhead crane
Capacity & delivery

Scale that meets the schedule.

120k
units / yr capacity
68%
export share
28k m²
plant floor
36
application engineers
Leakage-tested, witness-verified

Tested before it ships.

  • API 6D
  • API 607 / 6FA
  • PED / CE
  • NACE MR0175
  • ATEX
  • EAC
Hydrostatic test bench with a valve under pressure
Factory acceptance tests

Shell and seat tested to published standards before dispatch.

API 598
Hydrostatic shell rating
ISO 5208 A–D
Seat leakage class
BS 6364
Cryogenic, to −196 °C
SGS · BV · TÜV
Third-party witness accepted
See testing process
Finished valves strapped on pallets and in export crates in a dispatch bay
Request a duty-specific quote

Tell us the duty, get the spec.

We reply with the family, the rating curve and the material report.