OEM Soft Seal Lug Butterfly Valve GGG40 Handle Operation Supplier, Factory

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OEM Soft Seal Lug Butterfly Valve GGG40 Handle Operation Supplier, Factory

Type: Concentric Resilient Seated

Series: LTD71X

Size: DN40-DN600/2â€-24â€

Pressure rating: PN6/PN10/PN16/5K/10K/150LB

Design standard: EN 593, API 609

Service: OEM&ODM

The lug butterfly valve is a straight through cut-off or regulating valve with a lug connection as its core feature. It is suitable for medium and low pressure to medium and high pressure, medium and small to large diameter work.

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Product Description

Technical Specifications

Valve Type:	Lug butterfly valve	Structure:	Concentric
Standard:	EN593	Workmanship:	Investment casting
Sealing direction:	Bidirectional	Sealing grade:	Zero leakage
Temperature:	-20°C < T < 120°C	Operation:	Handle/Lever

Key Components

Handle

Various materials; Quick and precise opening and closing switches.

Seal

EPDM seal, corrosion resistance, good sealing performance, good resilience, and aging resistance.

Shell

Thickened valve body, enhanced impact resistance, and extended service life.

Disc

Pinless disc, eliminate leakage and ensure durability.

Characteristics

Compared to wafer butterfly valves, lug butterfly valves have stronger connection stability, are less affected by pipeline flange parallelism and uneven bolt tension, and have higher sealing reliability. Compared to flange butterfly valves, the axial length is shortened by 30%~50%, the volume is more compact, the weight is reduced by 20%~40%.

Advantages

Outstanding convenience: Protruding ear connection allows for independent disassembly without dismantling upstream/downstream pipelines.

Stable connection: Bolted directly to the pipeline flange, ensuring even force distribution and avoiding sealing failure.

High strength: Enhanced overall rigidity can withstand higher pipeline pressure (PN1.0 to PN10.0MPa).

Diverse driving modes: Compatible with handles, turbines, pneumatic, and electric actuators.

Balanced cost-effectiveness: A compromise between economy and high reliability compared to flange types.

Material Specifications

Body	Plate	Shaft	Bushing	Seat	Temp Range (°C)
Ductile Iron	Ductile Iron	Stainless Steel	PTFE	EPDM	-45～+135
Ductile Iron	Stainless Steel	Carbon Steel	PTFE	Hypalon	-18～+135
Aluminum Bronze	Titanium Steel	-	-	EPDM	-45～+135
Stainless Steel	CF8M	-	-	Neoprene	-7～+93
Carbon Steel	CF8M	-	-	NBR	-12～82

Application Scenarios

Suitable for pipelines in petroleum, chemical, food, pharmaceutical, papermaking, hydropower, ships, water supply and drainage, smelting, and energy systems.

Dimensions

Packing

Standard export wooden case packaging.

Frequently Asked Questions

1. What is the main benefit of a lug butterfly valve over a wafer type?

The lug type allows for "dead-end service," meaning you can remove the downstream piping while the valve remains in place under pressure, which is not possible with wafer valves.

2. Can these valves handle bidirectional flow?

Yes, our lug butterfly valves feature a bidirectional sealing design, meaning there are no restrictions on the import or export directions of the media.

3. What is the standard sealing grade for this valve?

These valves are designed for high-performance sealing, achieving a zero-leakage grade under specified operating temperatures and pressures.

4. Are different actuation methods available?

Absolutely. While manual handles are common for smaller sizes, we also offer turbine (gear), pneumatic, and electric actuators for automation and remote control.

5. Is the valve body resistant to harsh environments?

Yes, the valve body is thickened and can be manufactured in materials like Ductile Iron, Stainless Steel, or Aluminum Bronze to resist corrosion and impact.

6. What media are suitable for this lug butterfly valve?

It is highly versatile and can be used for non-corrosive and corrosive gases, liquids, semi-fluids, and even solid powder in various industrial applications.