Taiwan Valve Centre Co., Ltd. - TVCCL (Taiwan Valve Centre Co., Ltd.) is a professional dual plate check valve manufacturer in Taiwan.

API / ASME Standard | Manufacturer of High-Quality Dual Plate Check Valves | Taiwan Valve Centre Co., Ltd.

TVCCL, TAIWAN VALVE is a Taiwan high-quality Dual Plate Wafer Check Valve, Dual Plate Check Valve, Wafer Check Valve, Duo Check Valve, Double Door Check Valve, Non Return Valves, Non Slam Non Return Valves manufacturer, Has more than 25 years of experience specializing in the manufacture of check valves, the main products are Check Valve, Butterfly Valves, Y Type, Ball Valve, Gate Valve, Knife Gate Valve, etc. since 1998.

API / ASME Standard / CE Certified Dual Plate Check Valve Manufacturer For Over 20 Years | Taiwan Valve Centre Co., Ltd.

/ Over 25 years of experiences in producing dual plate check valve, excellent after-sales support, OEM / ODM, oil industry, shipbuilding, seawater desalination, cooling system, nuclear industry.

API / ASME Standard

API & ASME Standards for Check Valves: What Engineers Need to Know

In high-pressure, high-temperature, or highly corrosive industrial environments, valve safety leaves no room for compromise. At TVCCL, our dual plate check valves are engineered, manufactured, and tested in strict accordance with the world's leading industrial standards. Whether your project specifies API, ASME, JIS, or ISO/EN, we deliver fully compliant fluid control solutions.

What Is API 594 — and Why Does It Matter for Dual Plate Check Valves?

API 594 is the governing design standard for check valves used in petroleum, petrochemical, and natural gas industries. It defines critical parameters including face-to-face dimensions, wall thickness, and end-to-end tolerances — ensuring that valves from different manufacturers can be interchanged within the same pipeline system without re-engineering the piping layout.

At TVCCL, every dual plate check valve is engineered to full API 594 compliance. (Note: For projects requiring European specifications, we also manufacture valves compliant with EN 558 face-to-face dimensions.)

ASME B16.34 and Pressure-Temperature Ratings: What Specifying Engineers Must Verify

ASME B16.34 establishes pressure-temperature (P-T) ratings for valves made from specific materials — carbon steel, stainless steel, duplex, and beyond. For project engineers preparing a valve datasheet, this standard determines the maximum allowable working pressure (MAWP) at any given operating temperature. TVCCL strictly adheres to these ratings to ensure the materials selected can safely withstand your system's operational extremes.

150LBPSI
°F°CWCB
(A216)		WC6
(A217)		LCB
(A352)		LCC
(A352)		CF8
(A351)		CF8M
(A351)		CF3M
(A351)
-20 to 100-29 to 38285290265290275275275
20093260260250260235240240
300149230230230230205215215
400204200200200200180195195
500260170170170170170170170
600316140140140140140140140
650343125125125125125125125
700371110110---110110110110
7503999895------959595
8004278080------858080

Flange Dimensions & Connection Standards for Global Compatibility

To guarantee a seamless and error-free installation, TVCCL valves are machined to match a wide array of international flange outer diameter (OD) and drilling standards:

  • ASME / ANSI (Americas & Global): Fully compliant with ASME B16.5, B16.42, and B16.1. For large-diameter pipelines (24 inches and above), we strictly refer to the ASME B16.47 standard.
  • JIS (Japan & Asia): Machined to meet JIS B2220 and B2239 standards, satisfying the strict requirements of precision piping in shipbuilding and chemical plants.
  • ISO / EN / DIN (Europe & Global): Compliant with ISO 7005-1 / ISO 7005-2 standards for perfect alignment with PN-rated piping systems.

Global Flexibility: While certain standards are frequently associated with specific regions (e.g., JIS in Japan), modern industrial facilities often adopt cross-regional specifications. There are no absolute geographical limits. For instance, TVCCL routinely supplies ASME-compliant valves to Japanese facilities. We manufacture precisely to the standard your specific piping system requires.

API 598: Rigorous Inspection and Pressure Testing

We don't just promise quality; we prove it with data. Every valve that leaves the TVCCL facility undergoes strict testing per the API 598 standard. We perform rigorous shell tests (hydrostatic) and seat tests to ensure structural integrity and zero-leakage performance under maximum working pressure.

Custom Engineering & Non-Standard Dimensions

Do you have specific dimensional requirements or need a standard not listed above?Standard specifications cover most projects, but we know that retrofits and specialized systems often require unique dimensions. TVCCL possesses robust in-house custom manufacturing capabilities.

If your piping system requires non-standard face-to-face lengths, special flange drilling, or unique material properties, please contact us. Our engineering team will evaluate your specific requirements and provide a customized quotation tailored to your needs.

API / ASME Standard | Manufacturer of High-Quality Dual Plate Check Valves | Taiwan Valve Centre Co., Ltd.

Located in Taiwan since 1998, Taiwan Valve Centre Co., Ltd. has been a dual plate check valve manufacturer with all the valves sold to 1,500 clients in 80 countries worldwide. Main products, including dual plate check valves, dual plate full lining type, retainerless check valves, bypass check valves, short and long wafer check valves and spring wafer type for industries, such as oil, shipbuilding, seawater desalination, cooling system and nuclear.

TVCCL has a competitive pricing, reliable quality product and excellent after-sales support, well-down packing. We have received good reputation as being a well-known supplier in supplying reliable quality and competitive price check valves from customers. Over 25 years of experiences in producing dual plate check valve, excellent after-sales support, OEM / ODM, oil industry, shipbuilding, seawater desalination, cooling system, nuclear industry.

TVCCL, TAIWAN VALVE has been offering customers high-quality and durable industrial check valves for any applications since 1998, both with advanced technology and 25 years of experience, TVCCL, TAIWAN VALVE ensures each customer's demands are met.