DLA004 Lug Butterfly Valve Carbon Steel Hand Lever
DLA004 is a lug type butterfly valve made from carbon steel with a hand lever, designed for on-off and throttling service in water, low-pressure industrial lines, and similar media. It features threaded lug holes that allow installation at the end of a pipe run or in dead-end service, where a wafer body cannot be used. The carbon steel body provides strength and durability in moderate-pressure applications.
| Model Code | DLA004 |
|---|---|
| Product Type | Lug Butterfly Valve[Carbon Steel 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 | DLA004 |
| Valve Type | Lug type butterfly valve |
| Body Material | Carbon steel |
| Operation | Manual, hand lever |
| Connection | Lug type, threaded holes for pipe end mounting |
| Series | DLA004 lug butterfly valve series |
What This Model Gives You
- Lug body allows installation at the end of a pipe run or in dead-end service, unlike a wafer body
- Carbon steel construction offers strength and resistance to moderate pressure and wear
- Hand lever enables manual operation with quarter-turn motion for quick isolation
- Threaded lug holes simplify mounting without requiring additional flanges
- Part of a valve programme covering DN10 to DN2600 and 0.05 to 4.0 MPa across multiple families
- Built under ISO 9001 and ISO 14001 certified systems for consistent manufacturing
Problems It Removes
- Wafer valves cannot be used at the end of a pipe run; the lug body solves this installation limitation
- Manual valves with lever operation are easier to operate and confirm position than gear-driven or actuated types in low-duty applications
- Carbon steel provides sufficient strength for low- to medium-pressure systems without the cost of stainless steel
- Lug type valves eliminate the need for extra flanges when installing at the end of a line
- Buyers need a single supplier who can cover a wide range of diameters and pressure ratings
Where It Is Installed
- Isolation of water supply lines at the end of a pipe run in municipal or industrial systems
- Throttling control on low-pressure cooling or return lines in power and heating plants
- Dead-end service in fire protection risers where a valve must be installed at the end of the line
- Maintenance isolation in process piping where flanges are not available on both sides
- Use in petrochemical and chemical plants for on-off control in low-pressure service lines
Buyers It Suits
- Procurement engineers sourcing carbon steel butterfly valves for industrial water and low-pressure lines
- Piping designers specifying end-of-line isolation valves in plant layouts
- EPC contractors standardising on lug type valves for flexibility in installation
- Valve distributors stocking medium- and low-pressure butterfly valves with end-of-line capability
- Maintenance teams needing reliable manual valves for infrequent operation in remote locations
How It Is Built
- Lug type body with threaded holes for bolting to pipe ends
- Carbon steel body suitable for low- to medium-pressure applications
- Hand lever for quarter-turn manual operation
- Resilient seat for bidirectional sealing in on-off service
- Designed for use in water, low-pressure industrial fluids, and similar media
- Part of a product programme covering DN10 to DN2600 and 0.05 to 4.0 MPa
Material Selection
- Body, disc, stem, and seat materials are confirmed per order based on the buyer's medium and operating temperature
- Seat material is selected from the variants available in the DLA series
- Material certificates are issued with the order upon request
How It Is Made
- Carbon steel body cast and machined on in-house fine machining equipment
- Disc and stem assembled and fitted with the resilient seat
- Valve tested for seat tightness and operating torque before final assembly
- Hand lever attached and full quarter-turn operation verified
- Marked, wrapped, and crated for container shipment from Tianjin
How It Is Checked
- Dimensional inspection of lug hole spacing and thread depth before assembly
- Seat and shell tightness tested on the assembled valve
- Operating torque and full quarter-turn travel checked on every unit
- Testing conducted 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 can be replaced with a gearbox, pneumatic, or electric actuator before shipment
- Lug hole threading 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
| Wafer type butterfly valve | The wafer body requires flanges on both sides; the lug body allows end-of-line installation |
|---|---|
| Lug type butterfly valve with actuator | The hand lever version is simpler and lower cost for manual operation; the actuated version suits remote or automated control |
| Gate valve at DN50 | The gate valve offers a full bore but is heavier and longer; the lug butterfly is more compact and lighter |
| Ball valve at same size | A ball valve provides tighter sealing at higher pressure but costs more and requires more space for handle swing |
Installing and Operating This Valve
- Confirm the pipe end standard and lug hole threading before ordering
- Ensure the pipe end is clean and free of burrs before mounting the valve
- Tighten the lug bolts evenly in a cross pattern to avoid body distortion
- Open the disc fully after installation and confirm free quarter-turn operation
- Do not use the valve as a pressure test plug during hydrostatic testing
- Cycle the valve periodically if it remains in one position for long periods to prevent seat set
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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.
DLA004 Lug Butterfly Valve Carbon Steel Hand Lever FAQ
What size and pressure rating is DLA004?
The size and pressure rating are confirmed on request based on your line data, as the same model is offered in multiple variants across the DN10 to DN2600 range and 0.05 to 4.0 MPa pressure range.
Can this valve be used at the end of a pipe run?
Yes. The lug type body with threaded holes allows installation at the end of a pipe run or in dead-end service, unlike a wafer body.
Which materials are used for the body, disc, and seat?
The body is carbon steel. Disc and seat materials are confirmed per order based on the medium and temperature on your line. Material certificates are issued upon 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 before shipment, and the valve is tested with the actuator installed.
Do you supply the larger diameters in the same series?
Yes. The DLA lug butterfly valve series continues through the 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, flange standard, and medium by WhatsApp or email and our sales engineers reply with a quotation and confirmed specification sheet.
Get a Price for DLA004 Lug Butterfly Valve Carbon Steel 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.