DLA010 Lug Butterfly Valve DN250 Malleable Iron Hand Lever
DLA010 is a DN250 lug type butterfly valve with a malleable iron body and hand lever, designed for on-off service in water, low-pressure industrial and heating lines. The lug body allows installation at the end of a pipe run or in dead-end service, where a wafer body cannot be used. The hand lever provides manual operation with quarter-turn control, and the valve is built for repeated cycling in medium- and low-pressure applications.
| Model Code | DLA010 |
|---|---|
| Product Type | Lug Butterfly Valve[DN250 Malleable Iron Hand Lever] |
| Category | Lug Type Butterfly Valves |
| Manufacturer | Tianjin MIC Valve Co., Ltd. |
| Size and Pressure Rating | Confirmed on quotation |
| Certification | ISO 9001 and ISO 14001 certified plant |
| Model | DLA010 |
| Valve Type | Lug type butterfly valve |
| Nominal Diameter | DN250 |
| Body Material | Malleable iron |
| Operation | Quarter-turn, hand lever |
| Series | DLA010 lug butterfly valve series |
What This Model Gives You
- Lug body enables end-of-line or dead-end isolation where a wafer body cannot be used
- Malleable iron body provides good strength and castability for medium-pressure service
- Quarter-turn hand lever allows quick visual confirmation of valve position
- Compact design reduces space requirements compared to gate valves
- Built into a valve programme covering DN10 to DN2600 and 0.05 to 4.0 MPa
- Part of a series certified to ISO 9001 and ISO 14001 quality and environmental systems
Problems It Removes
- Gate valves are too long and heavy for tight spaces where end-of-line isolation is needed
- Wafer butterfly valves cannot be used at the end of a pipe run because they require flanges on both sides
- Older valves in service lack a reliable quarter-turn indicator for operator confirmation
- Buyers need a single supplier for both small and large diameter valves across multiple applications
- Space constraints in pump skids and control panels prevent the use of longer valves
Where It Is Installed
- Isolation at the end of a water supply line in a municipal distribution network
- Dead-end service in a heating system where the pipe terminates at the valve
- Zone shut-off in a power plant auxiliary system with limited space
- Maintenance isolation in a chemical process line where the valve is installed at the end of a branch
- Retrofit replacement in an existing pipeline where a gate valve is too long
Buyers It Suits
- Water utility engineers specifying isolation valves for dead-end service
- HVAC and heating system designers needing compact end-of-line valves
- Plant maintenance teams replacing gate valves with shorter butterfly valves
- EPC contractors sourcing medium- and low-pressure valves for multiple projects
- Valve distributors stocking lug butterfly valves for industrial and municipal use
How It Is Built
- Lug body with threaded inserts for mounting bolts on both ends
- Quarter-turn operation via hand lever for manual control
- Malleable iron body suitable for medium- and low-pressure service
- Resilient seat for bidirectional sealing and tight shut-off
- Designed for use in water, heating, and low-pressure industrial lines
- Part of the DLA010 lug butterfly valve series covering DN10 to DN2600
Material Selection
- Body, disc, stem and seat materials are confirmed per order based on the medium and operating temperature
- Seat and disc variants follow the options available in the DLA010 series
- Material certificates are issued with the order upon request
How It Is Made
- Body castings inspected and machined on in-house fine machining equipment
- Disc and stem assembled and fitted with the resilient seat
- Lug inserts cast or machined into the body for end-of-line mounting
- Valve assembled and tested for operation and tightness before packing
- Marked, wrapped and crated for container shipment from Tianjin
How It Is Checked
- Dimensional check of lug hole spacing and body face-to-face length before assembly
- Seat and shell tightness tested on the assembled valve
- Operating torque and full quarter-turn travel verified on every unit
- Testing performed on the 10 sets of imported inspection and testing equipment
- Records maintained under the ISO 9001 quality management system
Certificates Issued With This Valve
- ISO 9001 quality management system certification
- ISO 14001 environmental management system certification
Certification statements are limited to the management system certificates the factory actually holds. Product-level approvals for your market are confirmed before order.
What Can Be Changed
- Seat and disc variant selected based on the medium and temperature on the buyer's line
- Hand lever, gearbox, pneumatic or electric actuator can be fitted before shipment
- Lug hole pattern and flange drilling matched to the buyer's pipe standard
- Private label marking and packaging available on OEM orders
- Mixed-diameter orders combined with other valves in one container
How It Compares With the Alternatives
| DN250 wafer type butterfly valve | The wafer body requires flanges on both sides and cannot be used at the end of a pipe run |
|---|---|
| DN250 gate valve | The gate valve provides a full bore but is longer, heavier, and harder to install in tight spaces |
| DN250 ball valve | The ball valve offers tighter sealing at higher pressure but costs more and requires more clearance for handle sweep |
| DN250 resilient seated gate valve | The gate valve has a full bore but is heavier and longer; the lug butterfly is more compact and easier to maintain |
Installing and Operating This Valve
- Confirm the flange standard and lug hole pattern on the pipe before ordering
- Ensure the pipe end is clean and free of burrs before installing the valve
- Insert the valve and tighten the lug bolts evenly in a cross pattern to avoid distortion
- Open the disc fully after installation and confirm free quarter-turn operation
- Do not use the valve as a pipe end closure during pressure testing unless designed for it
- Cycle the valve periodically on lines that remain in one position for long durations
Related Models Industries and Guides
DL3B005 Worm Gear Actuator Lug Type Butterfly Valve No Pin
View Specification
DL3B001 Lug Butterfly Valve No Pin and Spline Spindle
View Specification
DL3A001 Lug Butterfly Valve Pin Type and Gearbox
View Specification
DLC002 Lug Butterfly Valve 2pc Shaft
View SpecificationWater Supply and Drainage
Sectioning valves non-return protection and joints for distribution mains pumping stations and treatment works.
Shipping and Marine
Ballast cooling and service water isolation in compact machinery spaces.
How To Choose Between Wafer and Lug Butterfly Valves
The body style decides whether the valve can hold the line on its own. Here is how to pick without guessing.
DLA010 Lug Butterfly Valve DN250 Malleable Iron Hand Lever FAQ
What size and pressure rating is DLA010?
It is a DN250 valve in the DLA010 lug butterfly series. The pressure rating and flange standard are confirmed against your line data when we quote, as the same body is offered in multiple seat and drilling variants.
Can this valve be used at the end of a pipe run?
Yes. The lug body has threaded inserts on both ends, allowing it to be mounted at the end of a pipe or in dead-end service.
Which materials are used for the body, disc and seat?
Material selection depends on the medium and temperature on your line, so we confirm the combination with the quotation and issue material certificates with the order on request.
Can it be supplied with an actuator instead of a hand lever?
Yes. The stem accepts a hand lever, gearbox, pneumatic, or electric actuator, and the valve can be assembled and tested with the actuator fitted before shipment.
Do you supply the larger diameters in the same series?
Yes. The DLA010 lug butterfly valve series continues through the larger nominal diameters, and our valve programme covers DN10 to DN2600 across all families.
What certification does the factory hold?
Tianjin MIC Valve Co., Ltd. is certified to the ISO 9001 quality management system and the ISO 14001 environmental management system.
How do I get a quotation?
Send the model, quantity, flange standard and medium by WhatsApp or email and our sales engineers reply with a quotation and a confirmed specification sheet.
Get a Price for DLA010 Lug Butterfly Valve DN250 Malleable Iron Hand Lever
Tell us the quantity, flange standard and the medium on your line. You get a quotation with a confirmed specification sheet, not a catalogue page.