What raw materials can Ruitu bromine extraction systems process?

Our bromine extraction systems are designed for seawater, bitter brine, salt lake brine, oilfield water, bromine-bearing industrial wastewater and concentrated brine from desalination plants. The process route is selected only after we review a laboratory analysis of your feed.

Do you supply single machines or complete plants?

Both. We supply individual machines such as salt washers, roller crushers, dryers, vibrating screens, belt conveyors and hot air furnaces, and we also deliver complete turnkey lines under an EPC contract.

What is included in your EPC service?

Water quality testing, site selection support, process design, project launch preparation, equipment manufacturing and procurement, packing and shipping, installation and commissioning, operator training, finished product production guidance, and output buy-back or decommissioning support where agreed.

Can your salt washing equipment produce food-grade salt?

Our salt washing machinery is used for both food-grade and chemical-grade salt. The achievable grade depends on the crude salt composition and the standard that applies in your market, so we design the washing, crushing, drying and screening stages around your target specification.

How do you support overseas installation?

Our engineers can be dispatched to site for installation and commissioning, train your operators, and stay involved until the line produces finished product at the designed daily capacity.

How do I start a project with Ruitu?

Send us your raw material analysis, target daily capacity, product specification and site information by email or phone. Our technicians will prepare a preliminary budget estimate and an economic benefit analysis based on your budget and expected output.

Custom PTFE-Lined Gate Valve Factories, Factory

1 / 1

Custom PTFE-Lined Gate Valve Factories, Factory

Brand: Ruitu Automation

Product origin: China

Equipment Type‌: A gate valve with PTFE lining on both the valve body and gate plate, equipped with a handwheel operating mechanism and flange connection.

Purpose‌: Used for controlling the on/off of fluid in pipelines. It achieves valve opening and closing through the lifting and lowering of the gate plate, suitable for scenarios involving the transportation of strongly corrosive media in large-diameter pipelines.

Advantages‌: The PTFE lining is resistant to strong corrosion and compatible with strongly corrosive media; the gate valve structure has low flow resistance, suitable for fluid transportation with large flow rates; it has good sealing performance, enabling reliable control of fluid on/off.

Send Inquiry

Product Description

Core Overview

The PTFE-lined gate valve is a robust isolation device engineered for on-off control in pipelines transporting highly corrosive and abrasive media. Constructed with a durable cast steel or stainless steel body fully lined with virgin Polytetrafluoroethylene (PTFE), it ensures complete separation of metal components from aggressive fluids such as strong acids, alkalis, and organic solvents. The valve features a wedge-shaped gate and flexible seat design, providing reliable sealing and minimal flow resistance when fully open. It is extensively used in chemical processing, pharmaceutical manufacturing, wastewater treatment, and power generation industries where strict corrosion resistance and leak-free performance are essential for operational safety and efficiency.

Specifications & Dimensions

Technical Parameters

Parameter	Specification
Body Material	WCB Carbon Steel, CF8/CF8M Stainless Steel
Lining Material	Virgin PTFE (Polytetrafluoroethylene)
Gate/Seat Material	PTFE, Reinforced PTFE, SS316+PTFE
Stem Material	SS316 with PTFE Sleeve/Packing
Nominal Diameter (DN)	DN50 – DN400
Pressure Rating	PN1.0, PN1.6, PN2.5 MPa; Class 150/300
Temperature Range	-20°C to +180°C
Operation Type	Manual (Handwheel/Gearbox), Electric, Pneumatic
Connection Type	Flange (ANSI, DIN, JIS, GB)
Leakage Class	ANSI/FCI 70-2 Class VI (Bubble-tight)

Dimensional Data Table (Flanged End, Face-to-Face per API 6D/GB)

Nominal Size (DN)	Face-to-Face (L) mm	Height (H) mm	Width (W) mm	Flange Diameter (D) mm	Weight (kg)
DN50	178	350	160	165	18.0
DN65	190	410	180	185	24.0
DN80	203	480	200	200	32.0
DN100	229	550	220	220	45.0
DN125	254	630	250	250	60.0
DN150	267	720	280	285	85.0
DN200	292	850	340	340	130.0
DN250	330	980	400	395	180.0
DN300	356	1100	460	445	240.0
DN350	381	1250	520	505	310.0
DN400	406	1400	580	565	400.0

Core Advantages

Superior Corrosion Resistance

Full PTFE lining withstands harsh chemicals, ensuring long-term integrity and preventing metal contamination.

Minimal Flow Resistance

Full-bore design provides a straight flow path with negligible pressure drop when fully open, ideal for slurries.

Bubble-Tight Shut-Off

Precision-machined PTFE seats and wedge gate ensure zero leakage, meeting strict environmental and safety standards.

Low Maintenance

Non-stick PTFE surfaces prevent scaling and buildup, reducing maintenance frequency and operational downtime.

Versatile Actuation

Compatible with manual, electric, and pneumatic actuators for seamless integration into automated control systems.

Frequently Asked Questions (FAQ)

Q What media types are PTFE-lined gate valves designed for?

They are specifically designed to isolate highly aggressive and corrosive media, including concentrated strong acids, alkalis, corrosive slurries, and organic solvents where standard metallic valves would fail.

Q What is the standard operating temperature range?

These valves operate reliably within a thermal range of -20°C up to +180°C, maintaining the structural and sealing properties of the virgin PTFE lining.

Q How does the valve achieve bubble-tight shut-off?

The combination of a wedge-shaped gate and precision-machined PTFE seat profiles creates a resilient barrier that achieves ANSI/FCI 70-2 Class VI zero-leakage performance.

Q What standard pipe connection types and standards are supported?

The valves feature standard flanged connections compatible with international standards including ANSI, DIN, JIS, and GB, with face-to-face dimensions adhering to API 6D specifications.

Q Can these valves be integrated with automated process lines?

Yes. In addition to standard manual operation via handwheel or gearbox, they are fully compatible with pneumatic and electric actuators for automated on-off loop operations.