Get timely responses from our professional sales team within 24 hours, to resolve your inquiries and project questions without delay.
We stick to confirmed production schedules and guarantee punctual shipment for every single order to keep your project on track.
Our professional engineers check specifications one by one, customizing suitable valve solutions matching your actual working conditions.
Typical models: D341X, D71X. Mostly fitted with rubber or PTFE soft seat for water, HVAC and low-temperature pipelines.
Working Pressure: 1.0 ~ 1.6 MPa
Working Temperature: -28℃ ~ 135℃
Connection Type: Wafer
Actuator: Manual Lever
Industrial Butterfly Valves | Full Range Manufacturer
Working Pressure: 1.0 ~ 1.6 MPa
Working Temperature: -28℃ ~ 135℃ Connection Type: Wafer
Actuator: Worm Gear
Industrial Butterfly Valves | Full Range Manufacturer
Working Pressure: 1.0 ~ 1.6 MPa
Working Temperature: -28℃ ~ 135℃ Connection Type: Wafer
Actuator: Pneumatic
Industrial Butterfly Valves | Full Range Manufacturer
Working Pressure: 1.0 ~ 1.6 MPa
Working Temperature: -28℃ ~ 135℃ Connection Type: Wafer
Actuator: Electric
Industrial Butterfly Valves | Full Range Manufacturer
Typical models: D342H, D642X. Supports both soft and metal-to-metal sealing, suitable for medium-temperature flue gas and circulating water.
Working Pressure: 0.6 ~ 1.6 MPa
Working Temperature: -40℃ ~ 250℃ (Depends on sealing material)
Connection Type: Flanged RF
Actuator: Worm Gear
Industrial Butterfly Valves | Full Range Manufacturer
Working Pressure: 0.6 ~ 1.6 MPa
Working Temperature: -40℃ ~ 250℃ (Depends on sealing material)
Connection Type: Flanged RF
Actuator: Pneumatic
Industrial Butterfly Valves | Full Range Manufacturer
Working Pressure: 0.6 ~ 1.6 MPa
Working Temperature: -40℃ ~ 250℃ (Depends on sealing material)
Connection Type: Flanged RF
Actuator: Electric
Industrial Butterfly Valves | Full Range Manufacturer
Typical models: D343H, D943H. Adopts metal hard sealing, designed for high temperature, high pressure, steam and chemical working conditions.
Size Range: DN50 – DN3200 / NPS 2″ – 200″
Working Pressure: PN20 – PN420 / Class 150 – 2500
Operation: Worm Gear Manual / Pneumatic / Electric / Hydraulic
Application: Food, Pharma, Chemical, Petroleum, Power, Paper
Industrial Butterfly Valves | Full Range Manufacturer
Size Range: DN80 – DN3200 / NPS 3″ – 200″
Working Pressure: PN20 – PN420 / Class 150 – 2500
Operation: Pneumatic Actuator (DA / Spring-Return)
Connection: Butt-Weld | Application: High-Pressure Steam / Hot Oil
Industrial Butterfly Valves | Full Range Manufacturer
Working Pressure: 0.6 ~ 1.6 MPa
Body Material: Gray Cast Iron, Ductile Iron, WCB Carbon Steel, Stainless Steel
Working Temperature: -40℃ ~ 250℃ (Depends on sealing material)
Connection Type: Flanged RF
Actuator: Electric
Industrial Butterfly Valves | Full Range Manufacturer
Centerline vs Double vs Triple Eccentric
Choose the right valve type for your operating conditions.
| Feature | Centerline | Double Eccentric | Triple Eccentric |
|---|---|---|---|
| Seal Type | Soft (Rubber/PTFE) | Soft or Metal | Metal (Fire Safe) |
| Temperature Range | -28°C ~ 135°C | -29°C ~ 425°C | -196°C ~ 600°C |
| Pressure Rating | PN10 – PN16 | PN16 – PN25 | PN25 – PN40 |
| Leakage Class | Class VI (Zero) | Class V | Class V / API 598 |
| Fire Safe | No | Optional | Yes (API 607) |
| Disc Wear | High (rubbing) | Low (cam action) | Minimal (zero rubbing) |
| Best For | Water, HVAC, Air | Steam, Gas, Oil | Petrochemical, High Temp |
| Price Level | $ | $$ | $$$ |
Body Materials
| Feature | Temp Range | Corrosion | Typical Use |
|---|---|---|---|
| Ductile Iron | -28°C ~ 135°C | Low | Water, HVAC |
| Cast Steel (WCB) | -29°C ~ 425°C | Medium | Steam, Oil, Gas |
| SS304 (CF8) | -196°C ~ 600°C | High | Food, Pharma, Chemical |
| SS316 (CF8M) | -196°C ~ 600°C | Very High | Seawater, Acid, Chloride |
| Duplex (CD3MN) | -50°C ~ 315°C | Extreme | Offshore, Sour Gas |
Actuator Types
| Type | Operation | Speed | Best For |
|---|---|---|---|
| Manual Lever | Hand | Slow | Small bore, low frequency |
| Worm Gear | Hand wheel | Medium | DN200+, infrequent operation |
| Pneumatic | Compressed air | Fast | Automation, emergency shutdown |
| Electric | Motorized | Medium | Remote control, modulation |
| Hydraulic | Oil pressure | Fast | Large bore, high torque |
Size & Pressure Range
Full range from DN50 to DN3200. Custom sizes available on request.
| DN (mm) | NPS (inch) | Centerline | Double Eccentric | Triple Eccentric | Max Pressure |
|---|---|---|---|---|---|
| DN50 | 2″ | ✅ | ✅ | ✅ | PN40 |
| DN80 | 3″ | ✅ | ✅ | ✅ | PN40 |
| DN100 | 4″ | ✅ | ✅ | ✅ | PN40 |
| DN150 | 6″ | ✅ | ✅ | ✅ | PN25 |
| DN200 | 8″ | ✅ | ✅ | ✅ | PN25 |
| DN250 | 10″ | ✅ | ✅ | ✅ | PN25 |
| DN300 | 12″ | ✅ | ✅ | ✅ | PN25 |
| DN350 | 14″ | ✅ | ✅ | ✅ | PN25 |
| DN400 | 16″ | ✅ | ✅ | ✅ | PN16 |
| DN500 | 20″ | ✅ | ✅ | ✅ | PN16 |
| DN600 | 24″ | ✅ | ✅ | ✅ | PN16 |
| DN700 | 28″ | ✅ | ✅ | — | PN10 |
| DN800 | 32″ | ✅ | ✅ | — | PN10 |
| DN900 | 36″ | ✅ | ✅ | — | PN10 |
| DN1000 | 40″ | ✅ | ✅ | — | PN10 |
| DN1200 | 48″ | ✅ | — | — | PN10 |
| DN1400 | 56″ | ✅ | — | — | PN6 |
| DN1600 | 64″ | ✅ | — | — | PN6 |
| DN1800 | 72″ | ✅ | — | — | PN6 |
| DN2000 | 80″ | ✅ | — | — | PN6 |
| DN2400 | 96″ | ✅ | — | — | PN6 |
| DN2800 | 1100″ | ✅ | — | — | PN4 |
| DN3200 | 128″ | ✅ | — | — | PN4 |
Need A Non-Standard Configuration? We Build Those Too
Special connection types, non-standard pressure or temperature ratings, alternate body materials, and third-party certifications for your specific project — send us your working conditions and we’ll quote a custom-engineered trap.
Lightweight, economical. Sandwiched between flanges. Most common for centerline valves.
Threaded lugs allow bolt-through installation. End-of-line capable. Easy maintenance.
Full flange connection. Standard for double & triple eccentric. High-pressure rated.
Welded directly to pipe. Zero leakage path. Used in critical high-temp applications.
Industries We Serve
Proven across 14+ industrial sectors worldwide.
Why buyers choose Gaoshan
Est. 1975・Xingyang, Zhengzhou, Henan
| CE Certified | API Licensed | ISO 9001:2015 | TS Manufacturing License |
50 years of manufacturing
Founded in 1975, Gaoshan Valve has produced industrial valves and steam traps for five decades, serving power, chemical, petrochemical, and process industries worldwide.
Direct factory pricing
No trading company markup — quotes come directly from our production facility at No.40 Chaoyang Road, Gaoshan Town, Xingyang, Zhengzhou, Henan, China.
Talk to us directly
WhatsApp / Phone: +86 132 8388 6629
Email: info@gaoshanvalves.com
Business hours: Mon–Fri, 8:00–18:00 (UTC+8)