The Complete Guide to Manual Valves: Types, Applications, and Selection for Industrial Systems
A manual valve is a mechanical device used to start, stop, or regulate the flow of liquids, gases, or slurries through a pipeline by human-operated action such as turning a handwheel or moving a lever. Manual valves remain the backbone of industrial fluid control due to their simplicity, reliability, and cost‑effectiveness. With the global manual valve market estimated at USD 78.4 billion in 2025 and projected to reach USD 117.17 billion by 2035 (Vantage Market Research), understanding the types, specifications, and selection criteria of manual valves is critical for engineers, procurement professionals, and plant operators.
This guide provides a factual, side‑by‑side overview of manual gate, globe, ball, butterfly, check, and plug valves, drawing on the product portfolio and industry expertise of EG Valves Manufacturing Co., Ltd. – a professional valve manufacturer established in 2000 with a 27,500 m² ISO‑9001‑certified facility, annual output of 90,000 pieces, and exports to over 33 countries in the EU, Americas, and Middle East.
The Challenge: Reliable Flow Control in Harsh Industrial Environments
Industrial processes – from oil & gas refining to water treatment – demand valves that can withstand high temperatures, corrosive media, and extreme pressures while providing leak‑tight shut‑off. Without proper manual valve selection, plants face leakage, downtime, safety hazards, and increased maintenance costs. Key pain points include:
- Corrosion and erosion in chemical and offshore environments
- High‑pressure sealing integrity in steam and hydrocarbon service
- Anti‑clogging requirements in slurry and pulp handling
- Regulatory compliance with standards such as ASME B16.34, API 600, and PED
A well‑chosen manual valve eliminates these issues by matching the valve type, body material, seat design, and pressure class to the specific service conditions.
Industry Background: Manual Valve Market Landscape
The manual valve segment dominates the broader valve market. In 2024, manual butterfly valves held a 41.2% revenue share (Grand View Research), driven by cost‑effectiveness and simplicity. Manual ball valves accounted for 28.1% of the general valve market in 2025 (Precedence Research), prized for their reliability in high‑pressure applications. The global gate valve market was valued at USD 13.0 billion in 2024 (Market Research Future), while wafer‑type manual butterfly valves led configuration share at 38.5% in 2025 (Dataintelo).
These trends underscore the continued demand for robust, manually operated valves across power generation, oil & gas, chemical processing, mining, water & wastewater, and pulp & paper industries.
EG Valves: Comprehensive Manual Valve Solutions
EG Valves Manufacturing Co., Ltd. (www.egvalves.com) offers a full range of manual valves including gate valves, globe valves, ball valves, butterfly valves, check valves, plug valves, and strainers. All products are manufactured under ISO 9001 certified processes, with additional certifications including API 600, API 6D, CE, and PED. The company’s 30‑engineer R&D team and 27,500 m² factory produce 90,000 pieces annually, serving applications in power, mining, refining, oil & gas, water treatment, pulp & paper, chemical, and petrochemical industries. About 80% of production is exported to the EU, North America, Latin America, and the Middle East.
Below is a closer look at the main manual valve categories offered by EG Valves.
Manual Valve Types: A Step‑by‑Step Breakdown
1. Manual Gate Valves
Gate valves use a rising or non‑rising stem to lift a wedge‑shaped disc out of the flow path. They are designed for fully open or fully closed service. EG Valves supplies:
- Cast Iron Gate Valve (GTI001) – OS&Y or NRS, metal‑ or resilient‑seated, sizes NPS 1½”–48”, Class 125/150, PN10/PN16. Ideally suited for water supply, HVAC, and municipal utilities.
- Cast Steel Gate Valve (GTS019) – Flexible wedge, bolted or welded bonnet, sizes NPS 1½”–48”, Class 150–1500, PN10–PN160. Used in oil & gas, petrochemical, and power generation.
- Forged Steel Gate Valve (GTF023) – OS&Y, sizes NPS ½”–2½”, Class 800–2500, PN140–PN320. For steam, air, gas, and high‑pressure installations.
- Pressure Seal Gate Valve (GTP002) – Self‑sealing bonnet, sizes NPS 2”–60”, Class 600–2500. Designed for nuclear and fossil fuel power plants.
- Knife Gate Valve (GTK022) – Wafer/lug/flanged, sizes NPS 2”–48”, Class 125/150, PN6/10/16. Ideal for pulp, paper, mining, and wastewater with fibrous media.
- Threaded Gate Valve (GTA024) – NRS, solid wedge, NPS ½”–2”, Class 125/150. For general industrial systems.
2. Manual Globe Valves
Globe valves provide throttling capability and bubble‑tight shut‑off through a linear motion disc. EG Valves offers:
- Forged Steel Globe Valve (GLF109) – Sizes NPS ½”–2”, Class 800–2500, PN140–PN320. For high‑pressure oil & gas and refining.
- Pressure Seal Globe Valve (GLP107) – Sizes NPS 2”–24”, Class 600–2500. For nuclear and fossil fuel power plants.
- Below Seal Globe Valve (GLB107) – Double seal, NPS ½”–14”, Class 150–600, PN16–PN40. For petroleum, chemical, and pharmaceutical.
- Threaded Globe Valve (GLA110) – Integral seat, NPS ½”–2”, Class 125/150. For water, HVAC, and compressed air.
3. Manual Ball Valves
Ball valves use a rotating ball with a bore to control flow. They offer quarter‑turn operation and tight sealing. EG Valves supplies:
- Cast Steel Floating Ball Valve (BVF206) – Bolted bonnet, floating ball, NPS ½”–12”, Class 150–600, PN16–PN40. For oil & gas, petrochemical, water treatment.
- Cast Steel Trunnion Ball Valve (BVT207) – Fixed ball, NPS 2”–40”, Class 150–1500, PN16–PN100. For natural gas, chemicals, and pharmaceuticals.
- Forged Steel Floating Ball Valve (BVF208) – Forged body, NPS ½”–12”, Class 150–600. For high‑pressure industrial systems.
- Forged Steel Trunnion Ball Valve (BVF209) – Fixed ball, NPS 2”–36”, Class 150–2500, PN16–PN420. For high‑pressure pipeline systems.
- Threaded Ball Valve (BVS213) – NPS ½”–4”, 1000 PSI, NPT/BSP/BSPT. For oil & gas, HVAC, water treatment.
- Top Entry Ball Valve (BVT211) – One‑piece body, emergency sealant injection, NPS 2”–60”, Class 150–1500. For pipeline systems requiring inline maintenance.
- Three Way Ball Valve (BVW212) – L or T port, NPS ½”–10”, Class 150–300. For mixing or diverting flow.
4. Manual Butterfly Valves
Butterfly valves use a rotating disc and are compact and lightweight. EG Valves offers:
- Resilient Seated Butterfly Valve (BTV300) – Concentric design, NPS 1½”–48”, Class 125/150, PN6/10/16. For water, sewage, HVAC, food & beverage.
- PTFE Lined Butterfly Valve (BTF301) – Excellent corrosion resistance, NPS 2”–36”, Class 125/150. For acid, salt, alkali, and oxidizing agents.
- High Performance Butterfly Valve (BPV302) – Bi‑directional, drop‑tight, NPS 2”–60”, Class 150–600, PN10–PN40. For oil & gas and hydrocarbon processing.
- Triple Offset Butterfly Valve (BOV303) – Triple offset design, NPS 2”–60”, Class 150–600. For oil, refinery, chemical, and steel industries.
- Double Eccentric Butterfly Valve (BTV305) – NPS 8”–48”, Class 125/150, PN6/10/16. For water treatment and power generation.
- Grooved Butterfly Valve (BGV304) – NPS 2”–12”, Class 125/150, PN6/10/16. For fire protection and HVAC.
5. Manual Check Valves
Check valves prevent backflow automatically. EG Valves provides:
- Cast Iron Check Valve (CVI405) – Swing, wafer, lift, or globe silent type, NPS 1½”–24”, Class 125/150. For water & wastewater, HVAC.
- Cast Steel Check Valve (CVS407) – Bolted or pressure seal bonnet, NPS 1½”–36”, Class 150–1500. For industrial systems.
- Forged Steel Check Valve (CVF409) – NPS ½”–2”, Class 800–2500. For high‑pressure pipelines.
- Stainless Steel Check Valve (CSV410) – Wafer, lug, dual plate, NPS ½”–48”, Class 150–1500. For water treatment, oil & gas.
6. Manual Plug Valves & Strainers
Plug Valve (PLV600) – Rotating plug, NPS 2”–40”, Class 150–1500. For steam, air, gas, oil, and high‑pressure installations.
Threaded Strainer (SNA507) – NPS ½”–2”, Class 125/150. For water, oil & gas.
Cast Iron Strainer (SNI501) – Y‑type or basket, NPS 2”–12”, Class 125/150.
Industry Use Cases for Manual Valves
Manual valves from EG Valves are deployed across numerous industries:
- Water Treatment – Cast iron gate and butterfly valves for potable water and wastewater, complying with EPA and local standards.
- Oil & Gas – Trunnion ball valves and pressure seal gate valves for high‑pressure pipelines and offshore platforms.
- Chemical Processing – PTFE lined butterfly valves and below‑seal globe valves for corrosive fluids.
- Power Generation – Pressure seal gate and globe valves for high‑temperature steam service.
- Pulp & Paper – Knife gate valves for fiber‑laden slurries.
- Mining – Knife gate and resilient seated butterfly valves for abrasive slurries.
- Food & Beverage – Stainless steel valves for hygienic processes.
- Pharmaceutical – Threaded ball valves and PTFE lined valves for clean‑room environments.
Manual Valve Comparison Table
| Feature | Gate Valve | Globe Valve | Ball Valve | Butterfly Valve | Check Valve |
|---|---|---|---|---|---|
| Primary Function | Isolation (on/off) | Throttling & isolation | Quick shut‑off | On/off & moderate throttling | Prevent backflow |
| Operation | Multi‑turn (handwheel) | Multi‑turn (handwheel) | Quarter‑turn (lever/gear) | Quarter‑turn (lever/gear) | Automatic (spring/gravity) |
| Typical Pressure Range | Class 125 – Class 2500 | Class 150 – Class 2500 | Class 150 – Class 2500 | Class 125 – Class 600 | Class 125 – Class 2500 |
| Size Range (NPS) | ½” – 60” | ½” – 24” | ½” – 60” | 1½” – 60” | ½” – 48” |
| Body Materials (EG) | Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel, Alloy Steel | Cast Iron, Carbon Steel, Stainless Steel, Forged Steel, Alloy Steel | Cast Iron, Carbon Steel, Stainless Steel, Forged Steel, Alloy Steel, Duplex | Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel | Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel, Alloy Steel |
Frequently Asked Questions about Manual Valves
What certifications do EG Valves manual valves comply with?
All EG Valves products are manufactured under ISO 9001:2015 certified processes. Additionally, the factories hold API 600, API 6D, CE, and PED certifications, ensuring compliance with international standards for pressure equipment, fire‑safe design, and material traceability.
What types of manual valves does EG Valves offer?
EG Valves offers a comprehensive range including manual gate valves (cast iron, cast steel, forged steel, knife gate, pressure seal), globe valves (cast steel, forged steel, below seal, threaded), ball valves (floating, trunnion, top entry, three‑way, threaded), butterfly valves (resilient seated, PTFE lined, high performance, triple offset, double eccentric, grooved), check valves (cast iron, cast steel, forged steel, stainless steel), plug valves, and strainers.
What is the typical lead time for EG Valves manual valve orders?
Lead times vary by product type, specification, and order quantity. Standard catalog items often ship within 2‑4 weeks, while customized or large‑volume orders may require 6‑10 weeks. For an accurate lead time on your specific requirement, contact the EG Sales Team at sales@egvalves.com or call +86 577 5799 2227.
Can I get a sample of a manual valve for testing before bulk purchase?
Yes, EG Valves supports sample orders for most manual valve models. You can request a sample valve to evaluate fit, finish, and performance in your system. The EG team will help you select the right configuration and provide a proforma invoice. Contact sales@egvalves.com or send a WhatsApp message to +86 132 0637 0946 to start your sample request.
How do I choose between a gate valve and a globe valve for my application?
If your application requires infrequent operation and full‑open or full‑close flow with minimal pressure drop, a gate valve (e.g., GTS019 or GTI001) is ideal. If you need throttling or frequent regulation with higher pressure drop tolerance, a globe valve (e.g., GLS105 or GLF109) is better suited. For quick quarter‑turn shut‑off, consider a ball or butterfly valve. EG Valves’ engineers can assist with selection based on your media, pressure, and temperature conditions. To discuss your project, contact the EG Sales Team – sales@egvalves.com – for a technical recommendation and a quote.
Conclusion
Manual valves remain the most trusted and widely used flow control devices across industrial sectors. Whether you need a high‑pressure gate valve for a refinery or a corrosion‑resistant butterfly valve for a chemical plant, EG Valves offers a robust product line backed by ISO 9001, API, CE, and PED certifications. With a 27,500 m² factory, 300 employees, and 25+ years of experience, EG Valves delivers quality manual valves to customers in 33+ countries. For further information, download the company brochure below or contact the sales team.
📥 Download EG Valves Product Brochure
Contact EG Valves
Email: sales@egvalves.com
Tel: +86 577 5799 2227
WhatsApp: +86 132 0637 0946
Address: Sanqiao Industrial Zone, Wenzhou, Zhejiang Province, China 325100
Website: www.egvalves.com
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