Lugged Wafer Butterfly Valve Grooved Resilient with Tamper Switch (XD371XL)

Size: 2″-12”(DN50-DN300)
Material: Ductile iron ASTM A536, 65-45-12/Cast Iron ASTM A126 Class B/EN-GJS-450-10/ ENJS1040
Dimension: AWWA C515,ASME B16.10,BS5163,AWWA C503, BS & DIN Standard, BS750,EN1074,BS EN14339, BS 5041, BS 5154
Connection: AWWA C606, ASME B16.1 CL 125, ISO 5211,ASTM A888, ISO 6182, BS EN 1092-2
Pressure Rating: 300PSI
Temperature: -10-120 ℃
Surface Treatment: ANSI/AWWA C550,Epoxy coated interior and exterior by Electrostatic
Certificate: UL Listed/FM Approved /NSF/ANSI61&NSF/ANSI 372
Medium: Water, gas,Drain Pipe,Fire Protection Systems etc.

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Product Description


what is the Lugged Wafer Butterfly Valve Grooved Resilient with Tamper Switch (XD371XL)? What are its advantages?

The Lugged Wafer Butterfly Valve Grooved Resilient with Tamper Switch, often referred to as XD371XL, is a specific type of butterfly valve designed for specific applications. Let’s break down its components and advantages:
Lugged Wafer Butterfly Valve:
1. Wafer Design: Like the standard wafer butterfly valve, the lugged wafer design is space-efficient and can be installed between flanges without the need for additional gaskets.
Lugged Connection: The valve features lugs, or protruding handles, on its outer edges, which can be used for additional support or anchoring. This design provides stability during installation and helps prevent movement.
2. Grooved Resilient Seat:
Grooved Design: The valve is equipped with a grooved resilient seat. This design enhances the sealing performance, ensuring a tight closure and reducing the likelihood of leakage.
3. Resilient Material: Resilient seats are often made from materials like EPDM (ethylene propylene diene monomer) or similar elastomers, providing flexibility and durability.
4. Tamper Switch (XD371XL):
Tamper Switch Integration: The XD371XL model includes a tamper switch, adding a monitoring and control element to the valve.
5. Security and Control: The tamper switch can detect unauthorized tampering or irregularities in the valve’s operation. This is crucial for maintaining system integrity, ensuring safety, and enabling automated control systems.

1.Space Efficiency: The wafer design allows for easy installation between flanges, saving space and reducing installation costs.
2. Stability: The lugged design provides additional stability and support during installation.
3. Sealing Performance: The grooved resilient seat enhances the valve’s sealing capabilities, minimizing the risk of leakage.
4. Monitoring and Control: The tamper switch adds a layer of security and control, allowing for real-time monitoring and automated responses to valve status changes.

It’s important to note that the advantages of this specific valve depend on the application’s requirements. Choosing the right valve involves considering factors such as fluid type, pressure, temperature, and the need for control and monitoring features.

Product Drawing

DN Dimensions(mm)
Inch mm A B L H1 H W OD N1-M1 N2-M2 ISO5211 中E 中F
PN10 PN16 PN10 PN16
2″ 50 140.5 65 43 122.5 127 202.2 125 125 125 4-M16 4-M16 4-φ10 F07 70 90
2.5″ 65 153 71 46 122.5 127 202.2 125 145 145 4-M16 4-M16 4-φ10 F07 70 90
3” 80 157.5 81 46 122.5 127 202.2 125 160 160 8-M16 8-M16 4-φ10 F07 70 90
4″ 100 176 95 52 122.5 127 202.2 125 180 180 8-M16 8-M16 4-φ10 F07 70 90
5” 125 191 111 56 122.5 127 202.2 125 210 210 8-M16 8-M16 4-φ10 F07 70 90
6” 150 202.5 133 56 122.5 139.5 215 225 240 240 8-M20 8-M20 4-φ10 F07 70 90
8” 200 243.5 164 60 122.5 198.5 274 225 295 295 8-M20 12-M20 4-φ12 F10 102 125
10″ 250 273 196 68 122.5 198.5 274 225 350 355 12-M20 12-M24 4-φ12 F10 102 125
12″ 300 311 226 78 132 198.5 293.5 225 400 410 12-M20 12-M24 4-φ12 F10 102 125
NO. Name Material
1 Body EN-GJS-450-10
2 Q-Ring NBR
3 Stub Shat SS431
4 Disc EN-GJS-450-10+EPDM
5 Hex Nut Carbon Steel Zinc plated
6 Signal Gearbox Body:EN-GJS-450-10
7 Drive Shaft SS431
8 Q-Ring NBR
9 End Face Sea EPDM

Quality Control

Advanced equipment guarantee the production of high quality products.
Advantages of DISA moulding line:1. High quality precise casting less scrap and lower finishing costs. 2.High Production Efficiency(1)Fast production: 350 moulds per hour, pattern changing time cut down to 2-3 minutes
(2).higher profitability over a longer service life. 3. Safety and Environmental Friendly safe, easy and clean operation (CE and ISO 14001 compliant)
High-precision, hydraulicly driven mould transport,no shifting, distortion, ordisplacement of moulds.
The advantage of the sand supply system:The sand supply system is from the best class sand processing equipment manufacturers of China, with straight structure, easier maintenance, environmently friendly, high degree of automation, high safety factor, good parameters of sand stability.

Fluid Tech Group is honored as the National enterprise technical center and is capable and qualified to conduct full series of tests and inspections including chemical checking, etc. Inspection facilities include:spectrometer, carbon sulfur analyzer, metallurgical microscope, tensile strength testing equipment, pressure testing equipment, adhesive force testing equipment, CMM, hardness tester, etc.From incoming inspection to finished product, quality is checked a
nd monitored in the whole process. Each step of the manufacturing process is carefully documented, regularly reviewed for revision control and updatin
g standard. Quality procedures are constantly monitored and updated to assure that only the highestand most consistent quality products are supplied to our valued customers.

Application and Case

Products are used in fire protection system, water system, HVAC system, plumbing, gas system, irrigation system, etc.These products are used in many projects , such as China Taiwanese Building 101, Xiamen Building,Wuhan Expo Building and other famous landmark projects.


1. What is the minimum quantity of the order?
Answer: The purchase volume of mixed products is 4 tons

2. How long is the delivery time of the order?
Answer: The delivery time for general orders is about 30 days. If the order is urgent and we have stock, around 7 days.

3. What payment methods do you accept?
Answer: We accept payment terms such as TT, L/C, DP, Western Union, Paypal, etc.

4. Where is your departure port of shipment? Is it possible to deliver to the designated warehouse?
Answer: The port of departure of our goods is generally Tianjin Port or Qingdao Port. We can transport the goods to designated warehouses, such as Yiwu, Guangzhou, etc.

5. What certificates do your products have?
Answer: Our products have FM/UL certificates, and we cooperate with third-party quality inspection certification before the factory, such as SGS,TUV

6.What are the series of your products?
Answer: Our products are divided into heavy series, medium series and light series according to different markets and standards. In order to buy more competitive products for you, please communicate your purchasing needs with the salesperson.

7. Do product packaging cartons and labels support customization?
Answer: Packaging cartons and labels can be customized according to customer requirements.

8.Does the purchased product support customization?
Answer: The product supports customization, but there are purchase quantity requirements and mold costs. For details, please consult the salesperson.

9.What are the packaging methods of the product?
Answer: The packaging of the product includes carton packaging, pallet packaging, wooden box packaging, and woven bag packaging.