PTFE Lined Flush Bottom Tank Valve
PTFE Lined Flush Bottom Tank Valve Manufacturer
The PTFE Lined Flush Bottom Tank Valve by MVS Valves is specifically engineered for applications that demand safe, efficient, and corrosion-resistant draining of process vessels. Designed to operate in aggressive chemical environments and high-temperature conditions, this valve features a precision-cast steel body that is fully lined with advanced fluoropolymers such as FEP or PFA, offering unmatched chemical resistance and extended service life. Mayur (Valves) System Private Limited, an ISO 9001:2015-certified company, has been a trusted PTFE Lined Flush Bottom Tank Valve manufacturer and exporter since 1978. We export to 40+ countries worldwide, focusing on consistent quality, timely delivery, and a smooth customer experience. Our valves serve clients across Europe, North America, the Middle East, Southeast Asia, Russia, and other international markets, meeting diverse industrial requirements with dependable solutions and technical expertise.
Manufactured to meet stringent quality and safety standards, this valve is ideal for bottom discharge in reactors, tanks, and storage vessels. Whether handling acids, solvents, or other corrosive fluids, the fluoropolymer-lined construction ensures zero contamination and high purity in critical fluid systems. The internal design eliminates dead zones and ensures complete drainage without residue, making it suitable for batch processes and CIP/SIP applications.
The Flush Bottom Tank Valve is available in both manual and automated versions, supporting integration with pneumatic or electric actuators for remote or process-controlled operations. In industries where reliability and cleanliness are paramount—such as pharmaceuticals, specialty chemicals, and food processing—this valve is a trusted solution.
Alongside the flush bottom valve, MVS also offers a range of compatible filtration and flow control accessories, including the PTFE Lined T Type Basket Strainer. This strainer, also available with PFA, FEP, or fluorocarbon resin linings, complements the valve system by providing reliable solid separation. Options such as the Plastic Lined T Type Basket Strainer, Fluoroplastic Lined Basket Strainer, and Fluorine Lined T Type Lined Basket Strainer offer enhanced protection against clogging and equipment wear.
We manufacturer of high-performance variants in carbon steel and stainless steel, such as the Carbon Steel MS PTFE Lined Basket Strainer and Stainless Steel PFA Lined Basket Strainer, suited for demanding industrial environments. As a PTFE Lined T Type Basket Strainer Exporter and PFA Lined T Type Basket Strainer Supplier, MVS Valves manufacturer and exporter of PTFE Lined Flush Bottom Tank Valve that are strong, corrosion-resistant solutions tailored to the needs of process industries worldwide.
Specification
| Parameter | Specification |
|---|---|
| Size Range | 80mm x 50mm, 100mm x 80mm, 150mm x 100mm |
| Manufacturing Standard | As per MVS Standard |
| Testing Standard | As per MVS Standard |
| Flange Dimensions | ANSI B16.5 - Class 150# / BS10 Table, DIN |
| Face to Face | As per MVS Standard |
| Body & Bonnet MOC | Ductile Iron, Cast Steel (WCB), Stainless Steel (304/304L/316/316L) |
| Lining Spark Test | 15 KVDC (Body Liners & All Wetted Parts) |
| Hydro Test | Body: 20 Kg/cm², Seat: 10 Kg/cm² |
| Operation Options | Manual, Diaphragm Actuator, Cylinder, Electric |
Material of Construction
| Body | Ductile Iron / ASTM A216 Gr. WCB (FEP Lined) |
| Bonnet | Ductile Iron / ASTM A216 Gr. WCB |
| Spindle | ASTM A216 Gr. WCB / EN8 (FEP Lined) |
| Valve Seat | GFT |
| Internals | AISI 304 / AISI 316 (Lined with FEP / PFA) |
| Seat & Packing | PTFE |
| Hand Wheel | C.I. (Gr.25) |
| End Cap / Locking Plate / Screws / Nuts | M.S / S.S |
| Lining Options | PFA / FEP |
| Lining Thickness | Min. 3.0 mm / 5.0 mm overall |
Application Industries
Crude Oil & Natural Gas Industry
Chemical & Petrochemical Industry
Water & Wastewater Treatment
Nuclear & Thermal Power Generation
Food & Beverage Industry
Pharmaceutical & Biotechnology
Pulp & Paper Industry
Mining & Mineral Processing
Marine & Shipbuilding
HVAC & Building Services
Automotive & Paint Chemical Manufacturing
Environmental & Bio Gas Renewable Energy
Steel & Metal Processing
Fertilizer Plants, Polymer Production
Cosmetics & Personal Care
Cement & Construction
Chlor-Alkali Industry
Mineral Acids Industry
Related Valves
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PTFE Lined Flush Bottom Tank Valve
Frequently Asked Questions
Can’t find your duty condition here? Send us the media, size, pressure and temperature and we will specify the valve. Contact us
What is a flush bottom tank valve and why is it lined?
A flush bottom tank valve mounts directly into the outlet of a reactor or storage tank so that its seat sits flush with the tank floor. There is no dead pocket below the tank where product can settle, stagnate or contaminate the next batch — which is the whole reason the valve exists. Lining it in FEP or PFA means the valve survives the corrosive contents of a chemical reactor while keeping that flush, fully drainable geometry.
Which body and lining materials are available?
Body and bonnet in Ductile Iron, Cast Steel (WCB) or Stainless Steel (304/304L/316/316L). Body and spindle lined in FEP, with internals in AISI 304 or 316 lined with FEP or PFA. Valve seat in glass-filled PTFE, with PTFE seat and packing. Handwheel in cast iron (Gr. 25). Lining at a minimum 3.0 mm, 5.0 mm overall.
What sizes and test pressures apply?
Three sizes, each with a tank-side and outlet-side dimension: 80 mm × 50 mm, 100 mm × 80 mm and 150 mm × 100 mm. Flange dimensions per ANSI B16.5 Class 150#, BS 10 Table or DIN. Manufacturing and testing are to MVS standard, with hydro test body 20 kg/cm² and seat 10 kg/cm², plus a 15 KVDC spark test on the body liners and all wetted parts. Operation manual, or by diaphragm actuator, cylinder or electric actuator.
Why not just fit an ordinary valve at the tank outlet?
Because an ordinary valve bolts onto a nozzle, leaving a stub of pipe below the tank floor. That stub holds residue that will not drain, which means incomplete batch recovery, cross-contamination between batches, and a pocket where corrosive liquid concentrates and attacks the nozzle. A flush bottom valve eliminates the stub entirely — the seat is the tank floor.
Are you a manufacturer, and what are your minimum order quantity and customization options?
MVS manufactures at its own works — since 1978, ISO 9001:2015 certified — and exports across several continents. The minimum order quantity is 20 pieces. Stainless bodies, PFA lining, and diaphragm, cylinder or electric actuated assemblies are built to order. Send us the tank nozzle details and we will confirm the size combination.