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Industrial Valve Types — Complete Engineering Guide

A complete reference covering all 14 industrial valve types: classification, selection criteria, key standards, service matrix, and troubleshooting links for oil & gas, power, chemical, and water treatment industries.

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Valve Classification Overview

Isolating / Block Valves

Start or stop flow completely. Key types: ball, gate, butterfly, plug, diaphragm.

Types: Ball, Gate, Butterfly, Plug, Diaphragm, Pinch

Regulating / Control Valves

Vary flow rate from fully open to fully closed with precise intermediate positions.

Types: Globe, V-Port Ball, Cage-Guided Control Valve, Needle

Non-Return / Check Valves

Prevent reverse flow automatically. No operator or actuator required.

Types: Swing Check, Dual Plate Check, Tilting Disc Check, Lift Check

Safety / Relief Valves

Open automatically to release excess pressure and protect vessels and pipelines.

Types: Safety Relief Valve, Pressure Safety Valve, Pilot-Operated PRV, Bursting Disc

All 14 Valve Types — Reference Cards

Each card links to product pages, related comparison guides, and troubleshooting guides.

Ball Valves

Quarter-turn on/off isolation for liquids, gases, and steam

Standards: API 6D, API 607, API 608, ASME B16.34

Browse Products| Ball vs Gate Ball vs Butterfly Trunnion vs Floating
Ball valve not sealing High operating torque

Gate Valves

Full-bore isolation in pipelines with infrequent operation

Standards: API 600, API 602, API 6D, ASME B16.34

Browse Products| Gate vs Ball Gate vs Globe Knife Gate vs Gate
Gate valve internal leak Gate valve hard to turn Stem packing leak

Globe Valves

Throttling and flow regulation in process lines

Standards: ASME B16.34, API 623, MSS SP-80, BS 1873

Browse Products| Globe vs Gate Globe vs Control Valve Needle vs Globe
Globe valve seat leak

Butterfly Valves

Large-bore on/off isolation and flow control in HVAC and water

Standards: API 609, API 607, AWWA C504, ASME B16.34

Browse Products| Butterfly vs Ball Wafer vs Lug Triple vs Double Offset
Butterfly seat leak Disc vibration

Check Valves

Automatic backflow prevention - no operator required

Standards: API 594, API 6D, ASME B16.34, API 598

Browse Products| Swing vs Dual-Plate Check Valve Types
Check valve chattering Water hammer on closure

Plug Valves

Multiport diversion and quick on/off in corrosive or sour service

Standards: API 6D, ASME B16.34, MSS SP-78, NACE MR0175

Browse Products| Plug vs Ball Gate vs Plug

Needle Valves

Precision flow control in instrumentation and sampling lines

Standards: ASME B16.34, MSS SP-80, DIN 3264, API 598

Browse Products| Needle vs Globe

Safety & Relief Valves

Automatic overpressure protection for vessels and pipelines

Standards: API 526, API 527, ASME PTC 25, ASME B16.34

Browse Products| Safety vs PRV Conventional vs Pilot-Operated
Safety valve simmering Safety valve not lifting

Strainers

Protection of downstream equipment from pipeline debris

Standards: MSS SP-55, ASME B16.34, API 598, ASME B16.10

Browse Products| Y-Strainer vs Basket
High pressure drop

Diaphragm Valves

Clean / sterile service isolation in pharma, food, and water

Standards: ASME B16.34, ISO 5208, ASME BPE, 3-A Dairy

Browse Products| Diaphragm vs Ball (Pharma) Diaphragm vs Pinch
Diaphragm failure

Pinch Valves

Slurry, abrasive, and soft-solid isolation using rubber sleeve

Standards: ASME B16.34, ISO 5208, MSS SP-75

Browse Products| Pinch vs Diaphragm Pinch vs Knife Gate

Actuators

Automated operation of valves via pneumatic, electric, or hydraulic power

Standards: ISO 5211, API 6D, IEC 60068, ATEX Zone 1/2

Browse Products| Pneumatic vs Electric Electric vs Hydraulic Spring Return vs Double Acting
Actuated valve not responding Hunting / oscillation

Accessories

Limit switches, solenoids, positioners, and valve accessories

Standards: IEC 60534, API 6D, ISO 5211, IEC 61508 (SIL)

Browse Products| Positioner vs I/P Converter

Control Valves

Continuous modulating flow and pressure control in process loops

Standards: IEC 60534, ASME B16.34, API 623, ISA 75.01

Browse Products| Globe vs Control Valve Single vs Double Seated

Valve Type Selection Matrix

Quick reference for suitability by service condition. Suitable Conditional Not recommended

Valve TypeLiquidGasSteamSlurryCryogenicThrottle
Ball Valve
Gate Valve
Globe Valve
Butterfly Valve
Check Valve-
Plug Valve
Needle Valve
Safety/Relief-
Diaphragm Valve
Pinch Valve
Control Valve

Strainers, actuators, and accessories omitted — these are support equipment, not flow-control devices. Use the Valve Finder for guided selection.

Valve Type Comparisons

Choosing between two valve types? Each comparison guide covers operating principle, pressure/temperature range, cost, maintenance, and applicable standards side-by-side.

Gate Valve vs Ball ValveBall Valve vs Butterfly ValveGlobe Valve vs Gate ValveGlobe Valve vs Control ValveTrunnion vs Floating Ball ValveSwing Check vs Dual-Plate CheckPneumatic vs Electric ActuatorWafer vs Lug Butterfly ValveNeedle Valve vs Globe ValveSafety Valve vs PRVKnife Gate vs Gate ValveDiaphragm Valve vs Pinch Valve
View All 58 Comparison Guides

Valve Troubleshooting Guides

Step-by-step diagnostic guides for the most common industrial valve problems — written for maintenance engineers, with tool lists, root causes, and repair procedures.

Gate Valve Leaking Past SeatGate Valve Hard to OperateBall Valve Not SealingBall Valve High Operating TorqueButterfly Valve Seat LeakCheck Valve ChatteringCheck Valve Water HammerSafety Valve SimmeringSafety Valve Not LiftingActuated Valve Not RespondingValve Packing Leak (General)Cavitation Damage
View All 23 Troubleshooting Guides

Related Resources

Valve Finder Tool

5-step guided selection quiz

Selection Guide

Detailed valve selection criteria

Valve Glossary

113 technical terms defined

Cv Calculator

Flow coefficient engineering tool

Valve Standards

API, ASME, ISO reference

Certifications

API 6D, ISO 9001 explained

All Comparisons

58 valve type comparisons

Industry Guide

Oil & gas, power, pharma

Valve Type Selection — FAQ

What are the main types of industrial valves?
Industrial valves are classified into four main groups: (1) Isolating/block valves - gate, ball, butterfly, plug, and diaphragm valves used to start or stop flow completely; (2) Regulating/control valves - globe valves and control valves used to vary flow rate; (3) Non-return/check valves - swing, tilting disc, dual plate, and wafer check valves that prevent backflow; (4) Safety valves - safety relief valves, pressure safety valves, and rupture discs that protect equipment from overpressure.
Which valve type is best for on/off isolation?
Ball valves are the best general-purpose on/off isolation valve for sizes up to 6 inch due to their quarter-turn operation, bubble-tight shutoff, and compact face-to-face length. Gate valves are preferred for larger sizes (8 inch and above) where cost and full-bore flow are priorities and operation is infrequent. Butterfly valves are economical for large-bore low-pressure applications such as water utilities, HVAC, and fire protection in sizes DN80 to DN1200.
Which valve is best for throttling and flow control?
Globe valves are the standard throttling valve for manual or actuated flow control in process piping. For automated modulating control in process loops, cage-guided globe control valves (with pneumatic diaphragm actuators) provide the best combination of Cv rangeability (50:1 to 100:1), control accuracy, and low noise. V-port ball valves are a good throttling alternative for fibrous or viscous fluids where globe control valves would plug or wear rapidly.
What is the difference between a gate valve and a globe valve?
Gate valves and globe valves are both rising-stem, multi-turn valves but serve different purposes. Gate valves use a wedge or parallel gate sliding perpendicular to flow - they create minimal pressure drop when fully open and are designed for on/off use only, not throttling. Globe valves use a disc moving axially into a circular seat ring - they always create some pressure drop even when fully open but provide excellent flow regulation and throttling capability.
How do I select the right valve for slurry service?
Slurry service requires valves with full-bore, obstruction-free flow paths and abrasion-resistant materials. Knife gate valves are the primary choice for slurries above 5% solids content - the gate shears through the slurry as it closes. Pinch valves (rubber sleeve valves) are ideal for abrasive slurries as the only wetted part is the replaceable rubber sleeve. Diaphragm valves work for low-pressure corrosive slurries in chemical and pharmaceutical plants.

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