Dual Plate Full Lug Type Check Valve - Solid Lug type dual check valve, Wafer Full Lug Check Valve | Made in Taiwan Dual Plate Check Valves Manufacturer | Taiwan Valve Centre Co., Ltd.
Double disc lug type check valves are designed to ASME, JIS, ISO, AWWA...etc. specifications and conform to API 594. Double disc lug type check valves are tested to API 598 standards. Dual plate lug type check valves are normally with Buna-n, Viton, EPDM, and metal seats.
Our twin plate wafer check valves conform to all industry standards.
API 594 dictates valve dimensions, including face-to-face dimensions and out dimensions, so twin plate wafer type check valves can replace any make of ANSI Dual Plate Water Check Valve. TVCCL, TAIWAN VALVE is a high-quality Dual Plate Full Lug Type Check Valve, Dual plate Full Lug check valve by tapped and enables the one-sided lugging of pipes. 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 Full Lug Type Check Valve
TC9
Solid Lug type dual check valve, Wafer Full Lug Check Valve
Double disc lug type check valves are designed to ASME, JIS, ISO, AWWA...etc. specifications and conform to API 594. Double disc lug type check valves are tested to API 598 standards. Dual plate lug type check valves are normally with Buna-n, Viton, EPDM, and metal seats.
Our twin plate wafer check valves conform to all industry standards.
API 594 dictates valve dimensions, including face-to-face dimensions and out dimensions, so twin plate wafer type check valves can replace any make of ANSI Dual Plate Water Check Valve.
Solid Lug type valves cover the bolting the entire length of the body.
Full lug type has bolt holes to connect with pipe flanges. Because it has threaded bolts around the entire area, the lug valve is a safer option
Lug type valves are provided with threaded bolting holes in accordance with API 594,ASTM,JIS,ISO
Features
- Full Lug design, mount between flanges by bolt which through body of valve.
- Do not have install problem of pipe flange, expecially for small size soild lug check valve.
- Retail acceptable.
- Beautifully packaged.
- Customized special valve.
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: 1.5" ~ 60" (DN40 - 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 (TC1), Lugged (TC6, TC9), Flanged (TC4)
- (Other flange connection please contact Taiwan Valves Centre Co., Ld.)
- *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 |
Technical information is only for reference.
CV PRESSURE DROP FORMULA
The Cv and Kv values are essential parameters used to evaluate the flow capacity and pressure drop characteristics of a valve. The Cv (Flow Coefficient) represents the flow rate of water, in U.S. gallons per minute, that passes through a valve with a pressure drop of 1 psi. The Kv value is the equivalent metric unit, indicating the flow rate in cubic meters per hour at a pressure drop of 1 bar.
These coefficients are crucial for valve selection, system design, and performance evaluation, ensuring optimal flow efficiency and accurate pressure control. The provided chart helps engineers determine the appropriate valve size and model according to flow conditions, pressure, and medium type.
| Size | Cv | Kv |
|---|---|---|
| 1-1/2" & 2" | 54.5 | 46.6 |
| 2-1/2" | 84.6 | 72.3 |
| 3" | 137.5 | 117.5 |
| 4" | 283.1 | 242.0 |
| 5" | 491.3 | 419.9 |
| 6" | 812.1 | 694.1 |
| 8" | 1499.5 | 1281.6 |
| 10" | 2587.3 | 2211.4 |
| 12" | 4214.8 | 3602.3 |
| 14" | 5547.3 | 4841.3 |
| 16" | 7549.7 | 6452.7 |
| 18" | 10548.7 | 9016 |
| 20" | 13325.6 | 11390 |
| 24" | 21500 | 18376 |
Technical information is only for reference.
Applications
- Dual plate Full Lug type check valve is suitable for high temperature and high pressure environment, like Petrochemical, Refinery or power plant.
- Applied in Water Supply Systems, Fire Water Systems, Cooling Water, Chilled / Hot Water Systems, Boiler Feed Water, Sea Water, Potable Water, Raw Water etc.
- Suitable for gas, like LPG, LNG, Sour Gas Low Temperature, Cryogenic Applications
- Used in pharmaceutical, Power and other industries
- Solid lug type dual check valve can use for liquids and gasses in general services, on-/offshore applications, etc.
- In Nuclear Industry, Dual Check Valve used for feed water control system, make-up water or other.
- Also use in steam, oil, nitric acid, acetic acid, strong oxidizing medium and urea, different medium should chose different material.
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Dual Plate Full Lug Type Check Valve - Solid Lug type dual check valve, Wafer Full Lug 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 Full Lug Type Check Valve, 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.