About Non Lubricated Plug Valves
FlowBiz Exports Pvt Ltd is a High Quality Non-lubricated plug valves Manufacturer in Mumbai, Maharashtra, India. We are a leading manufacturer of Non-lubricated plug valves in Mumbai and nearby areas.
Non-lubricated plug valves have a sleeve or liner installed in the cavity. The tapered plug wedges the sleeve against the plug body. In this way, the non-metallic sleeve decreases friction during operation. These gas plug valves require little maintenance, and their compact size makes them convenient to pack along with other equipment.
The Duroc G4 Sleeve line plug valve is engineered for use the most corrosive and difficult chemical services where drop-tight shutoff is an absolute requirement. It offers the proven reliability of the plug/PTFE sleeve primary seal with a fluoropolymer diaphragm secondary seal.
Advantages:
Few moving parts to reduce maintenance
Can service while installed
Fast opening, closing
Minimal resistance for liquid, air, or gas flow
Leak-proof
Contact with sleeve discourages the accumulation of debris
Can improve seal with injected sealant (or replace sleeve)
Available in multi-port design
Product Details:
Brand - FlowBiz
Size - 1/2" - 14"
Material - PFA,PFA-conductive (Seating Material),Stainless Steel Body
Threaded End - Threaded Flange
Material Grade - SS304
Exceptional Durability and Low MaintenanceDesigned for minimal maintenance, these non-lubricated plug valves eliminate the need for frequent servicing by using advanced sealing technology such as PTFE, FEP, and metal seats. The corrosion-resistant epoxy or polyurethane finish ensures longevity even in harsh chemical or petrochemical environments.
Bubble-Tight Performance and Safety FeaturesEngineered for zero leakage, our valves guarantee bubble-tight shutoff, supported by API 598 testing. The design incorporates a blow-out proof stem, antistatic components, and an optional fire-safe configuration, boosting safety for critical water, oil, gas, or chemical applications.
Versatile Operation and Reliable Standards ComplianceEvery valve adheres to ASME B16.34, API 599, and API 6D, ensuring consistency and reliability. Available in manual, pneumatic, or electric actuation, with connection choices including flanged, screwed, and welded ends, these valves suit varied industrial needs, from process plants to water treatment facilities.
FAQ's of Non Lubricated Plug Valves:
Q: How do non lubricated plug valves differ from lubricated types in terms of maintenance and performance?
A: Non lubricated plug valves utilize advanced seating materials like PTFE or elastomers instead of grease. This design results in significantly lower maintenance because there is no need to replenish or monitor lubricant. Additionally, they offer consistent bubble-tight shutoff and zero leakage, making them ideal for applications requiring reliable isolation.
Q: What standards do these plug valves adhere to, and why is this important for industrial users?
A: Our plug valves conform to ASME B16.34, API 599, API 6D for design and ANSI B16.5 for end connections, ensuring rigorous manufacturing quality. Testing is performed as per API 598, which means each valve meets strict industry requirements for strength, pressure, and operational integrity.
Q: Where are non lubricated plug valves commonly used and why?
A: These valves are widely used in process industries, water treatment, petrochemical plants, and oil & gas sectors. Their robust construction, corrosion-resistant coating, and compatibility with a range of media (water, oil, gas, air, chemicals) make them versatile and reliable for demanding service conditions.
Q: What are the available options for operation and connection types with these valves?
A: Plug valves can be operated manually or fitted with pneumatic or electric actuators for automated control. Connection options include flanged, screwed, socket weld, and butt weld as per customer specification, accommodating diverse installation requirements and pipeline configurations.
Q: How does the fire safe design benefit operations, and when should it be specified?
A: A fire safe design provides additional sealing in the event of a fire, preventing leakage even after exposure to high temperatures. It is recommended where safety regulations demand enhanced fire protection, such as in oil, gas, and chemical processing applications.
Q: What sizes and flow configurations are offered for these plug valves?
A: We supply sizes ranging from 1/2" to 12" (DN15 to DN300), covering most industrial flow rates. Valves are available in both 3-way and 4-way configurations, allowing for efficient flow diversion or mixing tailored to your application's needs.
Q: What benefits does the blow-out proof stem and antistatic feature provide?
A: The blow-out proof stem design ensures the stem remains securely in place under all pressure conditions, enhancing safety. The antistatic feature prevents static electricity accumulation, reducing the risk of ignition in environments handling flammable media.