Professional PN16 Wafer Butterfly Valve with Split-Stem Design | Tianjin Worlds Valve Co., Ltd

Introduction：

Professional PN16 Wafer Butterfly Valve with Split-Stem Design

Tianjin Worlds Valve Co., Ltd. – Your Reliable Source for Durable, Cost-Effective Flow Control

CBF03-TA03-Operation and Maintenance Manual DOWNLOAD

Key Features & Advantages:

1. Enhanced Structural Integrity with Split-Stem Design

Unlike conventional single-stem valves, our innovative dual-shaft (upper & lower) configuration delivers superior performance and durability.

• Increased Strength & Rigidity: The split-stem system provides exceptional torsional strength, effectively resisting bending and deformation under high pipeline stress or pressure surges.

• Precise Disc Alignment & Smoother Operation: This design ensures perfect, stable alignment of the disc during its entire 90-degree rotation, resulting in consistently smooth, low-friction operation and reduced actuator strain.

• Extended Service Life: By minimizing mechanical stress and wear on the stem and bearing points, the design significantly prolongs the valve's operational lifespan and reduces long-term maintenance needs.

2. Optimized Material Selection for Maximum Durability

We pair premium materials for critical wetted components to ensure reliability in demanding environments.

• Corrosion-Resistant Disc (CF8M/AISI 316): The valve disc is manufactured from CF8M stainless steel, which offers superior resistance to pitting and corrosion from chlorides, acids, and a wide range of chemicals compared to standard 304 grades, making it ideal for harsh or marine applications.

• High-Performance Elastic Seat (EPDM): The ethylene propylene diene monomer (EPDM) seat provides excellent long-term sealing elasticity, strong resistance to water, steam, and weathering, and reliable performance across a broad temperature range from -20°C to 120°C.

• Synergistic Longevity: The combination of a hard, corrosion-resistant disc and a resilient, sealing-elastic seat creates a robust interface that maintains a leak-tight seal over countless cycles with minimal degradation.

3. Reliable High-Pressure Sealing Performance (PN16 Rated)

Engineered to deliver secure shut-off in systems requiring higher pressure containment.

• Bubble-Tight Seal Assurance: The precision-machined CF8M disc interacts perfectly with the elastic EPDM seat to create a reliable, bubble-tight seal, effectively preventing internal leakage and ensuring process integrity.

• Stable Performance Under Pressure: The valve is rigorously designed and tested to perform consistently at its PN16 pressure rating, providing a dependable barrier against backflow and pressure loss in critical pipeline segments.

• System Protection: This reliable sealing capability safeguards upstream equipment, prevents media mixing, and contributes to overall system safety and efficiency.

4. Cost-Effective & Space-Efficient Installation

The wafer-style design provides significant practical and economic benefits for system builders.

• Compact, Lightweight Profile: The valve eliminates the need for a full flange body, resulting in a much lighter and more compact unit that simplifies handling and reduces structural support requirements.

• Simplified Installation Process: Installation is quick and straightforward—the valve is simply centered between two pipeline flanges and secured with through-bolts. This eliminates the need for separate flange nuts or complex alignment procedures, drastically cutting labor time and costs.

• Reduced Total Cost of Ownership: Savings are realized across multiple fronts: lower initial unit weight, reduced shipping costs, minimal installation labor, and less required space within the piping system.

Standard:

Parameter	Specification
Model	Wafer Butterfly Valve(CBF03-TA03)
Sizes	DN50-DN1200
Design	Split-Stem (Upper & Lower Shaft)
Pressure Rating	PN6/10/16/150LB/JIS10K/AS “D”/ “E”
Design	EN593  BS5155  EN1092  ISO5211
Testing	ISO5208  EN12266-1
TOP Flange	ISO5211 (according to customer’s needs)
Face to Face	EN558-1 DIN3202 ISO5752 BS5155
Standard	ASME B16.34
Body	Ductile Iron
Disc	CF8M (AISI 316 Stainless Steel)
Seat	EPDM
Stem	SS431

Why Choose Tianjin Worlds Valve?  

• Certified Manufacturer with Global Compliance: We are an ISO 9001 certified factory, and our products are designed and tested to meet stringent international standards, including **WRAS, ACS, UKCA, and CE**. This ensures the quality, safety, and acceptability of our valves in markets worldwide.

• OEM/ODM Expertise & Flexible Customization: As a specialist in OEM and ODM services, we offer more than just standard valves. We collaborate closely with clients to provide tailored solutions—whether in **size, pressure rating, material grade (e.g., CF8, CF8M, Ductile Iron), or special coatings**—to meet exact project specifications.

• Proven Export Experience & Reliable Service: With a proven track record of exporting to dozens of countries across various continents, we possess rich international trade expertise. Our team provides end-to-end support, from technical consultation and documentation to timely logistics, ensuring a smooth and reliable supply chain experience for our global partners.

Typical Applications:

This valve is the workhorse solution for numerous industries requiring reliable and maintainable isolation:

• Municipal Water Supply & Distribution Networks

• Industrial Cooling Water & HVAC Systems

• Wastewater Treatment & Pumping Stations

• Fire Protection & Irrigation Systems

• General Service in Chemical, Power, and Marine Industries

Conclusion:

Looking for a reliable, certified supplier for your valve project? Contact Tianjin Worlds Valve Co., Ltd. today. Our team is ready to provide detailed product specifications, certifications, competitive pricing, and expert OEM/ODM support tailored to your needs.