Grooved Butterfly Valve with Lever Handle

Overview: D81X-16Q grooved butterfly valve for commercial/industrial fluid control, featuring quick installation, zero leakage and durability, cost-effective for diverse media needs.
Specs: PN16 (1.6MPa); -20°C~80°C (short-term 120°C); DN50~DN400 (customizable); Ductile Iron body, stainless steel disc/stem; NBR/EPDM seal; grooved connection; multiple actuation options.
Advantages: Tool-free quick install; bidirectional zero leakage; corrosion-resistant; compact; low vibration/noise, easy maintenance.
Applications: HVAC, fire protection, water supply/drainage, industrial oil pipelines.

Product category:

Fire butterfly valve

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linhaifeng117@gmail.com

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Product Details

Product Formation

The Grooved Center-Line Butterfly Valve is a high-performance fluid control component designed for efficient pipeline management. Engineered with ductile iron (QT450-10) body and stainless steel disc/stem, it delivers robust durability and corrosion resistance for applications involving water, air, oil, and other compatible media.

Featuring a grooved (clamp) connection, this valve enables tool-free, rapid installation—cutting down on labor time while ensuring secure, leak-tight joints. Its center-line design, paired with NBR/EPDM sealing materials, achieves bidirectional zero leakage and reliable performance across temperatures from -20°C to 80°C (short-term 120°C). Rated for PN16 (1.6MPa) working pressure, it meets strict industry standards for seal and shell integrity (test pressures: 1.76MPa and 2.4MPa, respectively).

Ideal for HVAC, fire protection, water supply, and industrial systems, this valve combines compact sizing, vibration/noise reduction, and low maintenance—making it a cost-effective, user-friendly solution for modern piping networks.

KEY WORDS： Grooved Butterfly Valve, Fire Protection Grooved Valve, HVAC Butterfly Valve, Water Supply Pipeline Valve、Zero Leakage Grooved Valve, Quick Install Clamp Butterfly Valve, Ductile Iron Valve、Grooved Butterfly Valve, Center-Line Butterfly Valve.

Product Features

1.Rapid & Hassle-Free Installation

Grooved (clamp) connection design eliminates welding or threading—just lock with a clamp for secure, tool-free assembly, cutting on-site labor time significantly.

2.Reliable Bidirectional Zero Leakage

Center-line structure paired with NBR/EPDM seals ensures tight, bidirectional sealing (no media leakage) even under fluctuating pressure.

3.Durable & Corrosion-Resistant Build

Ductile iron (QT450-10) body + stainless steel disc/stem withstand harsh media (water, oil, air) and extend long-term service life.

4.Compact & Space-Saving

Slim profile fits into tight piping layouts, ideal for systems with limited installation space (e.g., HVAC, fire protection).

5.Low Maintenance & Vibration Reduction

Sealed internal components minimize wear; the design dampens operational noise and vibration for stable, quiet performance.

6.Broad Adaptability

Works across -20°C~80°C (short-term 120°C) and PN16 (1.6MPa) pressure, compatible with multiple industrial/commercial piping systems.

Product Parameter

Parameter Item	Details
Valve Type	Grooved Center-Line Butterfly Valve
Nominal Diameter (DN)	Common specs: DN50~DN400
Nominal Pressure (PN)	PN16 (1.6MPa)
Applicable Temperature	-20°C~+80°C
Applicable Media	Water, seawater, air, oil, etc. (media compatible with sealing material)
Actuation Method	Lever , worm gear, electric, pneumatic, etc.
Body Material	Ductile Iron
Disc/Stem Material	Stainless Steel
Sealing Material	NBR , EPDM , etc.
Connection Type	Grooved
Seal Test Pressure	1.76MPa
Shell Hydrostatic Test Pressure	2.4MPa
Core Features	Quick installation, compact structure, bidirectional zero leakage, vibration/noise reduction, easy maintenance

FAQ

Q: Can you accept sample order?

A: Yes, we accept samples with little and reasonable charge.But need customer pay sample fees and transport fees first.

Q: What is your payment terms?
A: Payment supports T/T, L/C, etc.

Q: How can l get my order?
A: We will send you the goods by UPS,DHL,FedEx,Oversea Shipment or other forwarder, all with tracking number.

Q: Why choose us?
A： With over 15 years of experience in the fire protection industry, our company has professional technical personnel and many well-known partners in the domestic market. We offer favorable prices and guarantee quality, having passed multiple certifications!

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With more than 15 years of experience serving clients, we have developed extensive expertise and in-depth industry knowledge, enabling us to deliver reliable and effective solutions tailored to your requirements.
We provide professional technical support and customized service offerings. Our committed technical team is available to assist you with product consultation, installation guidance, and comprehensive after-sales support whenever necessary.
At Sheng Feng Fire, our professionals are dedicated to helping you select the most suitable products based on your specific needs.
Please do not hesitate to contact us for further information