DLA005 Lug Butterfly Valve Malleable Iron Hand Lever
DLA005 is a lug type butterfly valve made from malleable iron with a hand lever, designed for on-off and throttling service in water, low-pressure industrial, and heating systems. It features threaded lug connections on both ends, allowing it to be installed at the end of a pipe run or in a dead-end configuration. The hand lever enables quarter-turn operation for quick isolation or flow control.
| Model Code | DLA005 |
|---|---|
| Product Type | Lug Butterfly Valve[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 | DLA005 |
| Valve Type | Lug type butterfly valve with malleable iron body |
| Operation | Quarter-turn, hand lever |
| Series | DLA lug butterfly valve series |
| Nominal Diameter Range | DN10 to DN2600 mm |
| Nominal Pressure Range | 0.05 to 4.0 MPa |
What This Model Gives You
- Lug body allows installation at the end of a pipe run or in dead-end service where a wafer valve cannot be used
- Malleable iron body provides good strength and impact resistance for medium- and low-pressure applications
- Quarter-turn hand lever operation allows fast and visible valve position confirmation
- Threaded lugs simplify mounting without requiring additional flanges or welding
- Part of a valve programme covering DN10 to DN2600 and 0.05 to 4.0 MPa, enabling consistent sizing across projects
- Built under ISO 9001 and ISO 14001 certified production systems
Problems It Removes
- Wafer valves cannot be used at the end of a pipe run; the lug body solves this limitation
- Older valves with poor thread fit or weak body materials fail under repeated cycling or pressure
- Lack of standardised lug body valves leads to inconsistent spare parts across projects
- Buyers need a single supplier for both small and large diameters in the same valve family
- Short lead times are needed for standard valves in common sizes, not custom-made items
Where It Is Installed
- Isolation at the end of a pipe run in water distribution or heating system branches
- Throttling control in low-pressure process lines where space is limited
- Dead-end service in fire protection risers or auxiliary piping systems
- Replacement of older malleable iron butterfly valves in existing installations
- Use in industrial piping where moderate pressure and corrosion resistance are required
Buyers It Suits
- Piping system designers specifying end-of-line isolation valves for water and heating networks
- Contractors installing valves in retrofit or new construction projects with space constraints
- Facility maintenance teams sourcing durable, replaceable valves for low-pressure systems
- Valve distributors stocking a lug butterfly range from DN10 upward for industrial and municipal use
- EPC buyers sourcing medium- and low-pressure valves for water, heating, and industrial packages
How It Is Built
- Lug type body with threaded lugs on both ends for end-of-line or dead-end installation
- Malleable iron body for strength and durability in medium- and low-pressure service
- Quarter-turn hand lever for manual operation and visual position indication
- Resilient seat for bidirectional sealing in low-pressure applications
- Part of a DLA lug butterfly valve series that continues through larger nominal diameters
- Designed for use in water, low-pressure industrial, and heating systems
Material Selection
- Body, disc, stem, and seat materials are confirmed per order based on the operating medium and temperature
- Seat material follows the resilient seat variant used across the DLA 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 tested for alignment and movement
- Seat fitted and the closure member set for proper sealing and travel
- Valve assembled, cycled, and pressure tested before packing
- Marked, wrapped, and crated for container shipment from Tianjin
How It Is Checked
- Dimensional check of lug thread size, bolt hole pattern, and 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, or actuator fitted before shipment upon request
- Lug thread standard matched to the buyer's pipe or flange system
- Private label marking and packaging available on OEM orders
- Mixed-diameter orders combined with other valves in one container for shipping
How It Compares With the Alternatives
| Wafer type butterfly valve | The wafer body requires flanges on both sides; the lug body can be used at the end of a pipe run |
|---|---|
| Lug butterfly valve with cast iron body | Malleable iron offers better ductility and impact resistance than cast iron under cyclic loading |
| Gate valve at DN50 | The gate valve provides a full bore but is heavier, longer, and more expensive than a lug butterfly valve |
| Ball valve at DN50 | A ball valve offers tighter sealing at higher pressure but is more costly and requires more clearance for the handle sweep |
Installing and Operating This Valve
- Confirm the lug thread standard and pipe size before ordering to ensure compatibility
- Do not fully close the disc during installation to avoid damaging the resilient seat
- Tighten the lug bolts evenly in a diagonal pattern to prevent body distortion
- After installation, open the disc fully and confirm free quarter-turn operation
- Avoid using the valve as a pressure test plug during system testing
- Cycle the valve periodically if it remains in one position for extended periods
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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.
DLA005 Lug Butterfly Valve Malleable Iron Hand Lever FAQ
What size and pressure rating is DLA005?
DLA005 is a lug type butterfly valve in the DLA series. The nominal diameter and pressure rating are confirmed on request based on the buyer's line data, as the same body is offered in multiple variants.
Can this valve be used at the end of a pipe run?
Yes. The lug type body has threaded lugs on both ends, allowing it to be installed at the end of a pipe run 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. 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 can be fitted with a gearbox, pneumatic, or electric actuator, and the valve is assembled and tested with the actuator before shipment.
Do you supply the larger diameters in the same series?
Yes. The DLA lug butterfly valve series continues through larger nominal diameters, and our 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, pipe size, and medium by WhatsApp or email and our sales engineers reply with a quotation and confirmed specification sheet.
Get a Price for DLA005 Lug Butterfly Valve 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.