API 6D & CE Certified · Factory Direct

Premier China Inverted Pressure Balance Lubricated Plug Valve Manufacturer | API 6D & CE Certified

Engineered for the toughest Oil & Gas environments. Inverted pressure balance lubricated plug valve factory PANS provides high-performance sealing, low operating torque, and zero-leakage solutions. 24-Hour Quote Response & 20-Day Rapid Delivery.

30+ Years Exp.
PANS API 6D Inverted Pressure Balance Lubricated Plug Valve
30+ Years ProfessionalIndustry-leading manufacturing history
0 Customer ComplaintsStrict quality adherence for EPC projects
One-Stop Industrial Valve SolutionComprehensive valve portfolio for EPCs
Certifications: API 6D· API 599· CE Marked· ISO 9001· API 598 Test· EN10204 3.1· TÜV
Engineering Advantage

Eliminate Field Failures: Why Global EPCs Trust
PANS IPB LPV Solutions

Advanced engineering to ensure zero downtime in high-pressure oil and gas applications.

Anti-Taper Locking Design

The inverted (flip-chip) pressure balance structure automatically balances the pressure between the plug and the valve body, effectively preventing the plug from getting stuck even under high-pressure fluctuations.

Effectively prevents the plug from getting stuck even under high-pressure fluctuations.

Reduced Operating Torque by 40–60%

Our balanced design reduces operating torque by 40–60% compared to conventional plug valves, allowing for easier manual operation or smaller, more cost-effective actuators.

Allows for easier manual operation or smaller, more cost-effective actuators.

Double Seal & Emergency Injection

Features a specialized oil groove system between the body and seal surface. The seal grease can be infused via the refueling nozzle to enhance sealing capability and provide emergency shut-off security.

Provides emergency shut-off security and zero-leakage performance.

Maintenance-Friendly Bolt Cover

Equipped with a Bolt Cover for quick on-site inspection and maintenance without removing the entire valve from the pipeline, saving downtime and reducing service costs significantly.

No need to remove the entire valve from the pipeline, saving significant downtime.
Specifications

Inverted Pressure Balance Lubricated Plug Valve: Technical Data Sheet

ParameterSpecificationDetails / Options
Design StandardAPI 6D / API 599ASME B16.34, BS 5351
Face-to-FaceASME B16.10Short / Regular / Long pattern
Flange StandardASME B16.5 / B16.47ANSI / DIN / JIS available
Pressure Class150# – 900#Class 150, 300, 600, 900
Size Range1″ – 24″ (DN25–DN600)Larger sizes on request
Body MaterialWCB / LCB / CF8 / CF8MDuplex, Alloy Steel available
Plug MaterialWCB / SS304 / SS316Hard-faced options available
Seal MaterialPTFE / GreaseHigh-temp options available
Temperature Range-46°C to +350°CCryogenic options available
Leak Test StandardAPI 598 / API 6DShell, Seat, Backseat tests
End ConnectionFlanged / BW / SWButt weld, Socket weld
OperationHandwheel / Wrench / ActuatorElectric, Pneumatic, Hydraulic
CertificationAPI 6D, CE, ISO 9001Third-party inspection available

✦ If you're evaluating different plug valve designs, this guide explains how lubricated plug valves work and how to select the right model for your application.

Custom Specs or 1:1 Drawings Needed?

Tell us your application requirements. Our engineers provide technical drawings and detailed quotations within 24 hours. No MOQ required.

  • 1″ – 24″ full size range
  • Class 150 – 900# pressure ratings
  • -46°C to +350°C temperature range
  • 40–60% torque reduction vs conventional
  • 100% pressure-tested before shipment
  • 20-day rapid delivery standard
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Quality Assurance

Manufacturing & QC Excellence: The PANS Standard

CNC Machining
CNC Machining
Testing Bench
Testing Bench
Assembly Line
Assembly Line
Finished Stock
Finished Stock
View Our Manufacturing Advantages

100% Pressure Testing

Every valve undergoes hydrostatic and air testing — Shell, Seal, and Backseat — per API 598 / API 6D standards before leaving the factory. Zero exceptions.

API 598API 6DShell TestSeat TestBackseat Test

Full Traceability — MTC EN10204 3.1

We provide Material Test Certificates (MTC) per EN10204 3.1 for every order. Each valve is permanently marked with a heat number, enabling full material traceability.

EN10204 3.1Heat NumberFull MTC

High Production Capacity for EPC Projects

With 5 manufacturing bases and annual output exceeding 3,000 tons, PANS easily fulfills large-scale EPC project requirements.

3,000+ Tons/Year5 Production BasesCNC Precision
API 6DAPI 598CE ISO 9001ISO 14001EN10204 3.1TÜV
Industry Applications

Industry Applications for Inverted Pressure Balance Lubricated Plug Valves

Proven performance across the world's most demanding industrial environments.

Oil and gas pipeline
01

Oil & Natural Gas Transmission

Long-distance pipelines and gathering systems where sustained zero-leakage performance and low-torque operation are critical to safety and operational efficiency.

Petrochemical refinery
02

Refinery & Petrochemical

Ideal for handling slurry, viscous media, and abrasive fluids. The lubrication system ensures reliable sealing even with the most challenging process media.

Chemical plant
03

Chemical & Severe Service

Reliable performance in corrosive environments and high-pressure cycles. Anti-taper lock design ensures operability after long periods of pressurized service.

Power generation
04

Power Generation

Deployed in main steam and water systems where tight shutoff and long service life under thermal cycling conditions are paramount.

Global Track Record

Trusted by Global EPCs & Distributors in 7+ Key Export Markets

30+
Years Manufacturing Excellence
0
Customer Complaints on Record
3,000+
Tons Annual Output Capacity
24h
Quote Response Guarantee

✦ Successfully Exported To

🇸🇦 Saudi Arabia🇦🇪 UAE 🇴🇲 Oman🇹🇷 Turkey 🇰🇿 Kazakhstan🇲🇽 Mexico 🇲🇦 Morocco

Professional support for international EPC bidding and project qualification. Dedicated inventory stocking solutions for global distributors and procurement teams.

Trusted by Global Industry Partners
JC Valves KSB FAF Armatury GWC Spirax Sarco
PANS Valve engineering team
Zero Customer Complaints — Since 1985 Three decades of manufacturing excellence. Our track record is built on engineering precision and uncompromising quality control at every stage of production.
Start Your Project

Ready to Start Your Project with China Inverted Pressure Balance Lubricated Plug Valve Suppliers PANS?

Get a Factory Quote in 24 Hours. Our engineers provide drawings and quotes within 24 hours. No MOQ for industrial valves.

Trusted DIN Valve Manufacturer in China – Fast Quote

Looking for a reliable partner for your next EPC project or inventory replenishment?