Process valve bank on a petrochemical skid
Process valves · application-rated

Duty-rated valves for process service.

Gate, ball, butterfly, check, globe and cryogenic valves — selected by medium compatibility, pressure-temperature rating and leakage class, not by a generic catalog.

Request a quoteSize by duty
Flanged gate valve on a process line
Match the valve to the duty

Specified by medium, sized by stress.

The first question an applications engineer asks is not the valve — it is the duty. So every Rhysdale family is published with the medium it can hold, the seat material it takes and the temperature it can carry.

  • Process isolation in chem & petrochem plants
  • Steam headers, condensate and boiler feed loops
  • Cryogenic LNG, ethylene and air-separation units
  • Sour-gas and hydrocarbon transfer lines
Media × material compatibility

Which body, which seat.

A direct lookup for the medium you are carrying — no prose, just the pairing.

MediumBody / trimSeatTempLeakage class
Chlorine / dry gasCF8M · 316LPTFEto +150 °CISO 5208 A
Steam & condensateWCB · CF8M13%Cr / Stelliteto +450 °CISO 5208 A
Sulphuric acid316L · Alloy 20PTFE / PFAto +120 °CISO 5208 A
LNG / ethyleneF316L · 304LPCTFEto −196 °CBS 6364
Pressure-temperature rating chart for PN and Class ratings
Pressure-temperature ratings

PN and Class, derated by temperature.

Every rating curve is published to the class. Pick the nominal rating, read the temperature limit — that is the envelope you can specify against.

RatingClassTempService
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
Valve families by duty

Six families, published to spec.

Wedge Gate Valve
RH-WCE

Wedge Gate Valve

2″–24″ · PN 10–100 · WCB / CF8M / 316L
Flange RF · BW−46 to +450 °C
Trunnion Ball Valve
RH-BTJ

Trunnion Ball Valve

1″–20″ · Class 150–1500 · A105N / 316 / Duplex
Fire-safe API 607−46 to +200 °C
Triple-Offset Butterfly
RH-TFB

Triple-Offset Butterfly

3″–40″ · Class 150–600 · CF8M / Duplex
Lug / Wafer · API 609−46 to +300 °C
Swing Check Valve
RH-KSW

Swing Check Valve

2″–20″ · Class 150–900 · WCB / LC1 / CF8M
Flange / BW−46 to +425 °C
Globe & Control Valve
RH-GTC

Globe & Control Valve

1″–14″ · Class 150–2500 · WCB / 316L
BW / Flange−46 to +450 °C
Cryogenic Ball Valve
RH-SLR

Cryogenic Ball Valve

1″–10″ · Class 150–800 · F316L / LF2
BW extended bonnet−196 to +120 °C
Size your valve by duty

Five axes, one working selection.

Medium, size, pressure class, body material, connection. Select the duty and carry the resulting spec straight into your enquiry.

  • Medium
  • Diameter DN / NPS
  • Pressure PN / Class
  • Body material
  • Connection type
Build my spec
Certification & material matrix

Each standard, each market, each number.

Traceability for the QA buyer — which family, which standard, which market, which certificate number and which material certificate grade.

SeriesStandardVerification
API 6DPipeline & isolationAPI 6D / ISO 14313
API 607 / 6FAFire-safe seatISO 10497
PED / CEEU pressureEN 12266 · DIN 3230
NACE MR0175Sour serviceNACE MR0175
ATEXHazardous areaATEX 2014/34/EU
EACEurasian marketTR TC 010
Hydrostatic test bench with a valve under pressure
Leakage-tested, witness-verified

Tested before it ships.

  • HydrostaticShell rating per API 598
  • Seat leakageISO 5208 class A–D
  • CryogenicBS 6364 to −196 °C
  • Third-party witnessSGS · BV · TÜV accepted
Capacity & delivery

Scale that meets the schedule.

120k
units / yr capacity
68%
export share
28k m²
plant floor
36
application engineers
Request a duty-specific quote

Tell us the duty, get the spec.

Medium, size, pressure class, seat material, connection and leakage class. We reply with the family, the rating curve and the material report.