Dual Plate Lug Type Check Valve With Retainerless - Lug retainerless dual check valve | Made in Taiwan Dual Plate Check Valves Manufacturer | Taiwan Valve Centre Co., Ltd.
Dual plate lug type with retainerless check valve’s body features a single cast body without pin retainer holes in the body. This design minimizes prospective leak paths through the valve body making it a preferable option for highly toxic, corrosive, or hazardous gas chemical processing applications.
Lug body with ratainerless double disc check valves are also suitable for liquid, natural gas and steam service applications.
Compared to conventional swing check valve, lug type retainerless design dual plate check valves have the advantage of zero leakage toward outside, cost saving. It can be installed in any line orientation, superior seal performance. Dual plate lug type with retainerless check valves are designed in accordance to API 594. TVCCL, TAIWAN VALVE is a high-quality Dual Plate Lug Type Check Valve With Retainerless, Lug Design retainerless check valve is no leakage from body. manufacturer from Taiwan since 1998. 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. 20 years of experiences in producing dual plate check valve, excellent after-sales support, OEM / ODM, oil industry, shipbuilding, seawater desalination, cooling system, nuclear industry.
Dual Plate Lug Type Check Valve With Retainerless
TC8-2
Lug retainerless dual check valve
Dual plate lug type with retainerless check valve’s body features a single cast body without pin retainer holes in the body. This design minimizes prospective leak paths through the valve body making it a preferable option for highly toxic, corrosive, or hazardous gas chemical processing applications.
Lug body with ratainerless double disc check valves are also suitable for liquid, natural gas and steam service applications.
Compared to conventional swing check valve, lug type retainerless design dual plate check valves have the advantage of zero leakage toward outside, cost saving. It can be installed in any line orientation, superior seal performance. Dual plate lug type with retainerless check valves are designed in accordance to API 594.
Retainerless type without holes drilled in the body avoiding possible leaks to the external.
In a lugged connection the valve is fastened directly to the pipe flange by connecting the pipe flange with bolts to the valve body also drilled with threads.
Lug type valves are provided with threaded bolting holes in accordance with API 594,ASTM,JIS,ISO.
Features
- Double lug design, install between pipe and flange by bolts and nuts, like dual plate wafer type check valve.
- Do not have any leakage problem on Body.
- Even for small disc, still has bolt to set each bolt hole.
Dual Plate Check Valve Installation Guide:
When installing a check valve, it can be used in both indoor and outdoor environments. However, if the medium is corrosive or the surroundings are prone to rust, it is essential to select a valve material combination that matches the conditions to ensure durability and safety. For special operating conditions, it is recommended to consult TVCCL’s technical team for professional advice.
Before installation, all debris, oxidation scale, and solid impurities inside the pipeline should be thoroughly removed to prevent interference with the valve’s operation. During installation, the flow direction of the medium must align with the arrow marked on the valve body. The piping should be aligned at the front and rear centers, with flange interfaces kept parallel and bolts evenly tightened. Special attention should be paid to the distance between the check valve and the pump, which should be six to eight times the valve size to ensure stable system performance.
For routine maintenance, regular inspections should be conducted to check for leakage, abnormal noise, or vibration. In addition, the valve should be periodically examined for signs of corrosion, jamming, or other irregularities. Necessary cleaning, dust removal, and residue treatment should be performed to maintain proper equipment operation and extend its service life.
Specification
- Size: 6" ~ 60" (DN150 - DN1500)
- Pressure Rating For ASME: 125# ~ 2500# Suit For ASME / MSS / API Flange
- Pressure Rating For ISO: PN10 ~ PN40 Suit For ISO Flange
- Pressure Rating For JIS: 5K ~ 20K Suit For JIS Flange
- Material:WCB,CF8,CF8M,ALBC3,A8904A(MOQ)
- Designed in accordance with API 594
- End Connection: Wafer (TC8), Lugged (TC8-3), Flanged (TC8-1)
- (Other flange connection please contact Taiwan Valves Centre Co., Ltd.)
- *Technical information is only for reference. Taiwan Valves Centre Co., Ltd. reserves the right to change without previous notice.
PRESSURE - TEMPERATURE RATING
The pressure-temperature rating table is an essential technical reference in the design and selection of industrial valves. It indicates the maximum allowable working pressure that a valve made from a specific material can withstand at various temperatures. According to the ASME B16.34 standard, this table is based on the mechanical properties and allowable stress of materials, listing pressure limits for different pressure classes (such as Class 150, 300, 600, etc.) at designated temperatures. These values are calculated by considering the reduction in material strength at elevated temperatures, ensuring that valves do not fail due to overpressure or overheating under actual operating conditions. When selecting a valve, users must first determine the operating temperature and then consult the table to verify whether the corresponding pressure class can safely handle the system pressure. The table also categorizes materials into groups—such as carbon steel, stainless steel, and alloy steel—since each material behaves differently under high temperatures, and the allowable pressures vary accordingly. In summary, the pressure-temperature rating table is a fundamental tool for ensuring valve safety. For engineers, it serves not only as a design reference but also as a critical component of risk management.
| °F | °C | WCB (A216) | WC6 (A217) | LCB (A352) | LCC (A352) | CF8 (A351) | CF8M (A351) | CF3M (A351) |
|---|---|---|---|---|---|---|---|---|
| -20 to 100 | -29 to 38 | 285 | 290 | 265 | 290 | 275 | 275 | 275 |
| 200 | 93 | 260 | 260 | 250 | 260 | 235 | 240 | 240 |
| 300 | 149 | 230 | 230 | 230 | 230 | 205 | 215 | 215 |
| 400 | 204 | 200 | 200 | 200 | 200 | 180 | 195 | 195 |
| 500 | 260 | 170 | 170 | 170 | 170 | 170 | 170 | 170 |
| 600 | 316 | 140 | 140 | 140 | 140 | 140 | 140 | 140 |
| 650 | 343 | 125 | 125 | 125 | 125 | 125 | 125 | 125 |
| 700 | 371 | 110 | 110 | --- | 110 | 110 | 110 | 110 |
| 750 | 399 | 98 | 95 | --- | --- | 95 | 95 | 95 |
| 800 | 427 | 80 | 80 | --- | --- | 85 | 80 | 80 |
Applications
- Lug retainerless dual check valve is suitable for high temperature and high pressure environment, like Petrochemical, Refinery or power plant.
- TVCCL has been exporting its products to the United States, Japan, Singapore, UAE, Europe, and other advanced industrial and regions, also,we had supplied to SAMSUNG,SIEMENS, Mitsubishi Heavy Industries, Kobe Steel and other internationally renowned companies.
- The island of Taiwan's Formosa Plastics Group, Chi Mei Industrial Group, Changchun Chemical Engineering, Taiwan's China Steel, China Shipbuilding Group and other large enterprises are also included.
- TVCCL's products are widely used in petroleum and petrochemical products, steel,desalination, shipbuilding, energy, water treatment, air-conditioning, electronic and other industrial fields.
- Retainerless dual check valve is suitable for high temperature and high pressure environment, like Petrochemical, Refinery or power plant.
- Use for any industry concerned with fire hazards or environmental safety
- Suitable for use in clean, dirty and sea water applications.
- Also use for gases like Chlorine, Hydrogen, Nitrogen, Carbon Dioxide (Co ), Oxygen etc.
- Retainerless type check valve can be installed in heating air-conditioning pipe lines.
- Installed in hydrocarbon and chemical processing.
- Retainerless Duo check Valve also can be used in steam/vapor applications.
- Retainerless dual check valve is a preferable option for highly toxic, corrosive, or hazardous gas chemical processing applications.
- Applied in Iron and steel industry.
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Dual Plate Lug Type Check Valve With Retainerless - Lug retainerless dual check valve | Made in Taiwan Dual Plate Check Valves Manufacturer | 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. Their main valve products, including Dual Plate Lug Type Check Valve With Retainerless, 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. 20 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.