Midland Industries
Midland Lug-Style Butterfly Valve w/ Buna-N Seat & Lever Handle
- Availability:
- Allow 2-3 Days to Ship
- Weight:
- 0.00 LBS
Description
Midland Lug-Style Butterfly Valve w/ Buna-N Seat & Lever Handle
Midland Lug-Style Butterfly Valves with Buna-N Seats and Lever Handles are designed for dependable shutoff and flow control in compatible commercial and industrial piping systems.
These valves feature a rugged ductile iron body, ductile iron disc, resilient Buna-N (NBR) seat, and manual locking lever handle. The lug-style body provides secure installation between mating flanges while the quarter-turn handle allows fast operation and convenient intermediate positioning.
Product Highlights
- Midland lug-style butterfly valve
- Heavy-duty ductile iron body
- Ductile iron disc
- Resilient Buna-N (NBR) seat
- Manual locking lever handle
- Quarter-turn operation
- Bubble-tight shutoff
- Suitable for bidirectional service
- Compact butterfly valve profile
- Lug mounting for secure flange installation
- Multi-position lever operation
- Suitable for water, air, petroleum-based fluids, and other compatible media
Technical Specifications
| Product Type | Lug-Style Butterfly Valve |
|---|---|
| Brand | Midland |
| Body Material | Ductile Iron |
| Disc Material | Ductile Iron |
| Seat Material | Buna-N (NBR) |
| Body Style | Lug |
| Operator | Manual Locking Lever Handle |
| Operation | Quarter Turn |
| Flow Direction | Bidirectional |
| Shutoff | Bubble-Tight Resilient Seat |
| Primary Function | Shutoff and Flow Regulation |
| Typical Service | Water, Air, Petroleum-Based Fluids, and Other Buna-N Compatible Media |
Valve Configuration
Lug-Style Body
Threaded lugs around the valve body provide secure mounting between compatible mating flanges and support convenient installation and maintenance.
Ductile Iron Disc
The internal disc rotates through the flow path to provide shutoff or intermediate flow positioning while maintaining a compact valve profile.
Lever Handle
The manual locking lever provides fast quarter-turn operation and allows the valve to be held at selected intermediate positions.
Construction Details
The Midland lug-style butterfly valve is constructed with a durable ductile iron body designed to provide excellent mechanical strength and long service life.
A ductile iron disc works against the resilient Buna-N seat to provide dependable sealing and smooth valve operation.
The locking lever handle provides direct quarter-turn control without requiring a gearbox or external actuator, making the valve convenient for routine manual operation.
Why Choose a Lever-Operated Butterfly Valve?
Fast Manual Operation
- Quarter-turn opening and closing
- Direct manual control
- Simple visual indication of valve position
- No gearbox required
- Convenient for routine isolation service
Intermediate Positioning
- Locking handle design
- Supports multiple disc positions
- Useful for controlled flow adjustment
- Simple field operation
- No external actuator required
Buna-N Seat
Resilient Sealing
The Buna-N seat provides a flexible sealing surface around the valve disc to support dependable bubble-tight shutoff.
Typical Compatibility
Buna-N is commonly used with water, air, petroleum-based fluids, oils, and many general industrial media where the specific operating conditions are compatible.
Ductile Iron Construction
Strong Valve Body
The ductile iron body provides high mechanical strength and durability for demanding commercial and industrial piping systems.
Durable Disc
The ductile iron disc provides a rugged flow-control element designed for repeated opening, closing, and intermediate positioning.
Lug-Style Body Design
Secure Flange Mounting
The lug-style body provides individual mounting points around the valve for secure installation between mating flanges.
Maintenance Flexibility
Lug construction can provide greater flexibility during system maintenance compared with standard wafer-style butterfly valve mounting.
Typical Applications
Water & Utility Systems
- Water distribution piping
- Air systems
- Equipment isolation
- General utility piping
- Compatible mechanical systems
Industrial Systems
- Plant utility piping
- Oil-compatible fluid systems
- Petroleum-based fluid applications where compatible
- Process support systems
- General industrial flow control
Buna-N vs. EPDM Seat
Buna-N
Buna-N is commonly selected for applications involving oils and petroleum-based fluids in addition to water and air, subject to specific media and temperature compatibility.
EPDM
EPDM is commonly preferred for water, HVAC, and many general-purpose applications but is generally not recommended for petroleum oils and hydrocarbons.
Lever Handle vs. Gear Operator
Lever Handle
A lever handle provides fast direct quarter-turn operation and is well suited where valve torque can be comfortably controlled manually.
Gear Operator
A gear operator provides greater mechanical advantage and slower, more controlled operation where higher torque is required.
Our valve, fitting, and industrial product specialists can help review your valve size, FIP connection requirements, pressure rating, handle configuration, media compatibility, and application before you order.
Email the GetPipe.com Team Visit Quick SupportFrequently Asked Questions
What type of valve is this?
This is a lug-style butterfly valve with a Buna-N resilient seat and manual locking lever handle.
What material is the valve body?
The supplied product information identifies a heavy-duty ductile iron body.
What material is the disc?
The supplied product information identifies a ductile iron disc.
What seat material is used?
The valve uses a resilient Buna-N, also known as NBR, seat.
How is the valve operated?
The valve uses a manual locking lever handle with quarter-turn operation.
Can the valve be positioned partially open?
Yes. The locking lever handle allows positioning at selected intermediate points for compatible flow-control applications.
Does the valve provide bidirectional shutoff?
Yes. The supplied product information identifies the valve as suitable for bidirectional service.
What fluids is Buna-N commonly compatible with?
Buna-N is commonly used with water, air, oils, petroleum-based fluids, and other compatible industrial media. Exact compatibility should always be confirmed before use.
What is the benefit of a lug-style body?
Lug-style construction provides secure flange mounting and can simplify installation, removal, and maintenance compared with some wafer-style designs.
What should I verify before ordering?
Confirm nominal valve size, flange requirements, system pressure, operating temperature, Buna-N media compatibility, and installation configuration before ordering.
Important Ordering & Installation Notes
- This listing is for Midland Lug-Style Butterfly Valves with Buna-N seats and manual locking lever handles.
- Confirm the required nominal valve size before ordering.
- Verify compatibility with the intended mating flange system.
- Confirm system pressure and operating temperature requirements.
- Verify Buna-N compatibility with the intended media before installation.
- Confirm ductile iron body and disc compatibility with the system fluid.
- Ensure mating flanges and connected piping are properly aligned before tightening hardware.
- Do not use flange bolts to force misaligned piping into position.
- Verify adequate internal clearance for complete disc rotation.
- Confirm adequate clearance for full lever handle travel.
- Cycle the valve after installation to confirm unobstructed movement.
- Do not exceed manufacturer pressure, temperature, or torque limitations.
- Install according to applicable piping standards, project requirements, and manufacturer recommendations.
