DLF3B038 Anti-Corrosive Lug Type Butterfly Valve DN250
DLF3B038 is a DN250 lug type butterfly valve with anti-corrosive design, built for on-off and throttling service in water, chemical and low-pressure industrial 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 anti-corrosive construction resists degradation from aggressive media, making it suitable for long-term operation in harsh environments.
| Model Code | DLF3B038 |
|---|---|
| Product Type | Anti-Corrosive Lug type Butterfly Valve DN250 |
| Category | Anti Corrosive Butterfly Valves |
| Manufacturer | Tianjin MIC Valve Co., Ltd. |
| Size and Pressure Rating | Confirmed on quotation |
| Certification | ISO 9001 and ISO 14001 certified plant |
| Model | DLF3B038 |
| Valve Type | Lug type butterfly valve with anti-corrosive construction |
| Nominal Diameter | DN250 |
| Connection | Lug type, threaded inserts for end-of-line mounting |
| Operation | Quarter-turn, lever, gearbox or actuator |
| Series | DLF3B anti-corrosive butterfly valve series |
What This Model Gives You
- Lug body design enables end-of-line or dead-end isolation where a wafer body cannot be used
- Anti-corrosive construction protects against chemical and water-based media that degrade standard metals
- Quarter-turn operation allows fast and reliable isolation with minimal effort
- Compact size and lightweight body reduce structural load and installation cost
- Built into a valve programme certified to ISO 9001 and ISO 14001 for consistent quality
- Part of a range covering DN10 to DN2600 with nominal pressure from 0.05 to 4.0 MPa
Problems It Removes
- Standard valves fail prematurely in corrosive environments, leading to leaks and unplanned downtime
- Wafer-type valves cannot be used at the end of a pipe run, limiting installation flexibility
- Mixed valve brands on one project increase spare parts inventory and maintenance complexity
- Corrosion leads to increased maintenance costs and safety risks in process lines
- Buyers need a single supplier who can cover both small and large diameters with consistent anti-corrosive performance
Where It Is Installed
- Isolation of chemical process lines in petrochemical and pharmaceutical plants where corrosion resistance is critical
- Dead-end service in water treatment plants where valves must be installed at the end of a pipe run
- Throttling control in low-pressure heating systems with corrosive additives or treated water
- Service in marine and offshore applications exposed to saltwater and humid conditions
- Replacement of standard valves in systems where premature corrosion has caused leaks or failures
Buyers It Suits
- Procurement engineers sourcing corrosion-resistant valves for chemical and water treatment systems
- Plant maintenance teams replacing valves in pipelines with aggressive media
- EPC contractors specifying long-life valves for industrial projects with high environmental exposure
- Valve distributors stocking anti-corrosive butterfly valves for medium- and low-pressure applications
- Facility managers upgrading aging valve systems in pharmaceutical and metallurgical plants
How It Is Built
- Lug type body with threaded inserts for end-of-line mounting
- Quarter-turn operation via lever, gearbox or actuator
- Anti-corrosive construction designed for aggressive media
- Resilient seat for bidirectional sealing
- Part of the DLF3B series that continues through larger nominal diameters
- Face-to-face length and flange drilling confirmed per order against the buyer's line data
Material Selection
- Body, disc and stem materials are confirmed per order based on the medium and operating temperature
- Anti-corrosive coating or material selection applied to resist chemical and water-based media
- Seat material chosen to match the medium and temperature conditions on the buyer's line
- Material certificates 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 with anti-corrosive treatment applied before final fitting
- Seat installed and closure member set for full travel and centred alignment
- Valve assembled, cycled and pressure tested before packing
- Marked, wrapped and crated for container shipment from Tianjin
How It Is Checked
- Dimensional check of face-to-face length and lug hole pattern 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
- Anti-corrosive coating or material variant selected based on the medium and temperature
- Lever, gearbox, pneumatic or electric actuator fitted before shipment
- Lug hole pattern matched to the buyer's flange 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 cannot be used at the end of a pipe run; the lug body allows dead-end service |
|---|---|
| DN250 standard lug butterfly valve | The anti-corrosive version has enhanced protection against chemical and water-based media |
| DN250 gate valve | The gate valve offers a full bore but is heavier, longer, and more expensive for the same duty |
| DN250 ball valve | A ball valve seals tighter at higher pressure but costs more and requires more space for actuator mounting |
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
- Tighten the lug bolts evenly in a cross pattern to avoid misalignment
- Open the disc fully after installation and confirm free quarter-turn travel
- Do not use the lug body as a pipe end closure during pressure testing
- Cycle the valve periodically on lines that remain in one position for extended periods
Related Models Industries and Guides
DLF0B006 Anti-Corrosive Butterfly Valve (Bare Shaft) DN150
View Specification
DLF0B004 Anti-Corrosive Lug Type Butterfly Valve (Bare Shaft) DN100
View Specification
DLF3B035 Anti-Corrosive Lug Type Butterfly Valve DN125
View Specification
DLF3B041 Anti-Corrosive Lug Type Butterfly Valve DN400
View SpecificationChemical Engineering
Corrosion resistant lined valves for aggressive media and process water headers.
Pharmaceutical
Clean utility and process water isolation where seat material and cleanability matter.
Preventing Seat Leakage in Butterfly Valves
Where butterfly valve seats actually fail and what to change in specification or installation.
DLF3B038 Anti-Corrosive Lug Type Butterfly Valve DN250 FAQ
What size and pressure rating is DLF3B038?
It is a DN250 valve in the DLF3B anti-corrosive series. The pressure rating and flange standard are confirmed against your line data when we quote, since 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 allows end-of-line or dead-end service, where a wafer body cannot be used.
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 lever?
Yes. The stem takes a lever, a gearbox or a pneumatic or electric actuator, and the valve is assembled and tested with the actuator fitted before shipment.
Do you supply the larger diameters in the same series?
Yes. The DLF3B anti-corrosive butterfly range 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 DLF3B038 Anti-Corrosive Lug Type Butterfly Valve DN250
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.