Valves for Oil, Gas and Chemical Industry

Heyue valves recommended selection sheet in industries of oil and gas and petrochemicals

Valve Type

Subtype

Industry Positioning

Key Selection Logic

Applicable Conditions

Non-Applicable Conditions

Body Material Recommendations

Seal/Trim Recommendations

Typical Applications

Ball Valve

Floating Ball, Trunnion Ball, V-Port Ball

Core workhorse valve; suitable for both on/off and throttling service; highly compatible with automation

1. Pressure Class: Use trunnion ball for high pressure (Class 600+); floating ball for low pressure (Class 150–300). 2. Function: Choose V-port for precise flow control; full-port for simple shut-off. 3. Media: Use hard-faced seals for slurry; use all-stainless or lined valves for corrosive media.

High/low pressure; corrosive or non-corrosive media; on/off or throttling; automation-ready

High-temp media prone to coking (causes seat sticking); ultra-fine flow control at very low Cv

Oil & gas standard: WCB; Corrosive service: 316L, Hastelloy; Ultra-high pressure: Forged steel

Low pressure: PTFE; High pressure/abrasive: Hard alloy; Corrosive: PTFE, Kalrez

Long-distance oil/gas pipelines; crude/final product transfer in refineries; chemical reactor feed blending; Christmas tree wellhead control

Gate Valve

Rising Stem, Non-Rising Stem, Slab Gate

Dedicated large-bore isolation valve; essential for main headers in oil/gas storage & utility systems

1. Size & cycling: Prefer for large bore (DN300+) and infrequent operation. 2. Installation: Use rising stem outdoors (visual position indication); non-rising stem in space-limited areas. 3. Media: Use slab gate for dirty/oily service (erosion-resistant).

Large bore, infrequent operation, low-pressure drop required; non-corrosive or mildly corrosive media

Frequent cycling; throttling service

Standard: WCB, carbon steel; Corrosive: 316L

High-temp/high-pressure: Metal-to-metal, flexible graphite; Medium duty: Elastomer

Oil tank farm inlet/outlet mains; trunk lines in long-distance pipelines; cooling water/steam headers in chemical plants

Globe Valve

Globe (Straight), Angle, Y-Type, Three-Way

Precision throttling valve for small/medium bores; critical for process parameter control

1. Function & layout: Straight for general throttling; angle type at pipe elbows (reduces fittings). 2. Service class: Forged steel for high-temp/high-pressure; stainless for corrosive media. 3. Flow path: Use three-way for mixing/diverting streams.

Small/medium bore; precise flow/pressure control needed; medium-high pressure; non-corrosive or mildly corrosive media

Large bore (DN200+); low-pressure-drop requirements

High pressure: Forged steel; Standard: Carbon steel; Corrosive: 316L

High temp: Metal seal; Ambient/corrosive: PTFE; Standard: Elastomer

Refinery side-draw from distillation columns; acid/base metering in chemical plants; wellhead water/polymer injection

Butterfly Valve

Concentric, Single-Offset, Triple-Offset

Economical large-bore valve for low-pressure service; primary choice for auxiliary & utility systems

1. Pressure & size: Ideal for ≤Class 150 and DN300+. 2. Sealing: Concentric for clean media; triple-offset metal-seated for bubble-tight shutoff. 3. Corrosion: Use lined (e.g., PTFE) body for aggressive chemicals.

Large bore, low pressure, infrequent operation; clean or mildly corrosive media; coarse flow adjustment

High pressure (≥Class 300); high temperature; precise control of abrasive/strongly corrosive media

Standard: Ductile iron; Corrosive: 316L, PTFE-lined; High temp: Carbon steel

Clean media: EPDM; High temp: Metal seal; Corrosive: PTFE

Waterflood manifolds in oilfields; cooling water circuits; firewater lines at tank farms; vent/flare gas lines

Check Valve

Swing, Lift, Silent (Dual-Plate)

Backflow prevention safety valve; mandatory at pump/compressor discharge

1. Size & pressure: Swing for large bore/low pressure; lift for small bore/high pressure. 2. System type: Use silent check in water systems (prevents water hammer). 3. Media: Stainless steel for corrosive service.

All pressure classes where backflow must be prevented (e.g., pump/compressor outlets, return lines)

Applications requiring active flow regulation

Standard: WCB, carbon steel; Corrosive: 316L; Low pressure: Ductile iron

High-temp/high-pressure: Metal seal; Low pressure: Elastomer; Silent type: Synthetic rubber

Pump/compressor discharge lines; pipeline pumping stations; reactor feed recycle lines

Control Valve

Single-Seat, Double-Seat, Cage, Eccentric Rotary

Core device for precise process control; directly impacts product quality & operational stability

1. Cleanliness: Single-seat for clean fluids; double-seat for high ΔP. 2. Media: Eccentric rotary for slurry; cage for vibration-prone services. 3. Control: Pair with electric/pneumatic actuator; support 4–20mA signal.

Precise flow/pressure/temperature control; integrated into closed-loop systems; wide media compatibility

Simple on/off service only

Standard corrosion: 316L; Strong corrosion: Hastelloy, titanium; High temp: Heat-resistant steel

Abrasive: Hard alloy; Corrosive: PTFE; High temp: Metal seal

Catalytic cracker feed control in refineries; reactor temperature/pressure regulation; wellhead choke pressure management