Valves and piping for petrochemical and fertilizer plants
Ammonia, urea and acids attack the wrong alloy fast, and constant temperature cycling works against packing and gaskets. Material choice decides how long your valves last.
- Pressure
- Class 150 – 600
- Temperature
- Continuous cycling
- Media
- Ammonia, urea, acids, process gas
- Critical need
- Corrosion-resistant materials
What makes this service hard
The conditions that decide which valve, material and seal will last.
Corrosive media
Plain carbon steel and brass fail early in many process streams. We match stainless and alloy grades to your media.
No brass in ammonia
Ammonia causes stress corrosion cracking in brass and copper alloys. We flag it on every quotation.
Thermal cycling
Constant heating and cooling loosens packing and gaskets. Metallic expansion joints and correct packing extend service life.
Typical items for petrochemicals & fertilizers
A starting point. Send your line list and we’ll match each item to your piping class.
- CF8M / 316 stainless gate, globe and ball valves
- Stainless A312 pipe and A403 fittings
- Metallic bellows expansion joints for hot lines
- Graphite and PTFE packing compatible with the media
- Diaphragm-seal pressure gauges for corrosive service
- Spiral-wound gaskets with suitable fillers
Product ranges for this industry
Industrial valves
Gate, globe, check valves and Y-strainers in cast steel, forged steel, stainless, cast iron and brass.
View range
Ball & butterfly valves
Floating and trunnion ball valves, wafer and lug butterfly valves, actuators and solenoids.
View range
Expansion joints
Rubber and metallic bellows joints for thermal movement and pump vibration.
View rangeFittings & flanges
Butt-weld and forged fittings, flanges, gaskets and stud bolts in matching class.
View rangeCommon questions
Which stainless grade suits our process?
CF8M (316) is the usual starting point for corrosive service because molybdenum improves chloride resistance. Severe service may need duplex or higher alloys. Send us the media, concentration and temperature.
Can you supply valves for ammonia service?
Yes, in steel and stainless grades suitable for ammonia. We do not recommend brass or copper alloys in ammonia service.
Send your list.
We’ll price every line.
Send an MTO, a spec sheet or a nameplate photo. You get an itemized quotation within 24 hours, with stock and import lead times marked.