Inverted Pressure Balance Lubricated Plug Valve

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Inverted Pressure Balance Lubricated Plug Valve

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MOQ : 5 Units

Inverted Pressure Balance Lubricated Plug Valve Specification

Application
Chemical, Petrochemical, Oil & Gas, Water Treatment

Connection
Flanged Ends (ANSI, DIN, BS Standards)

Size
inch to 12 inch (DN15 DN300)

Sealing
PTFE / Elastomer / Graphite

Material
Cast Iron / Ductile Iron / Carbon Steel / Stainless Steel

Valve Structure
Inverted Pressure Balance Lubricated Plug

Media
Water, Oil, Gas, Chemicals

Temperature of Media
-29C to 180C

Weight
18 kg to 220 kg

Dimension (L*W*H)
Varies by size, contact supplier for details

Power Mode
Manual

Plug Type
Lubricated cylindrical plug

Inspection & Testing
API 598

Body Coating
Epoxy / Phosphate Coated

Packing Type
Grease (Lubricating)

Pressure Rating
Class 150, 300, 600

Face to Face
ASME B16.10

Design Standard
API 599, BS 5159, ASME B16.34

End Type
Raised Face / Flat Face / Butt Weld

Operation
Handwheel or Lever

Inverted Pressure Balance Lubricated Plug Valve Trade Information

Minimum Order Quantity
5 Units

Supply Ability
200 Units Per Month

Delivery Time
7 Days

About Inverted Pressure Balance Lubricated Plug Valve

Inverted Pressure Balance Lubricated Plug Valve

Specification	Details
Design Standard	API 6D / API 599
Pressure/Temperature Char	ASME B16.34
Face to face Dimension	API 6D / ASME B16.10
Testing Standard	API 6D / API 598
Flange Details	ASME B16.5 UP TO 24 ASME B16.47 ABOVE 24
Size Range	2 36 (DN50 DN900)
ASME Class	150 2500
Materials	WCB / LCB / LCC / CF8M / CF8 / CF3M
Trims	F6a / F316 / F304 / F316L / F51
Seats	Metallic
Ends	Flanged / Butt-weld End

Pressure balance lubricated plug valves are metal seated valves providing a tight shut off ( 0 leakage ) sealing, valves shall be regularly lubricated along with their operation by injection of suitable grease. Due to no body cavity and as well as a simple & tough design, they are highly recommended for any critical Full P operation and for handling any media with an high % of solids contents, further more they provide an excellent resistance to abrasion, they are free from routine maintenance, providing a long service life.

Product variance:

PRESSURE BALANCED FULL BORE LUBRICATED PLUG VALVES API 6D

PRESSURE BALANCED DB & B LUBRICATED PLUG VALVES API 6D

LUBRICATED PLUG VALVES STANDARD TYPE API 6D - 2 WAYS, 3 & 4 WAYS MULTIPORT

DUAL SEAL PLUG VALVES DB&B API 6D

PLUG VALVES TWO WAY, TREE WAY AND FULLY JACKETED

Production Range:

API6D ASME/ANSI 150 up to 2500 Lb

DN 1/2 to 48 Class: up to 600

DN 1/2 to 36 Class: up to 900

DN 1/2 to 24 Class: up to 150

Superior Pressure Balance Design

This valve features an inverted pressure balance structure, ensuring even pressure distribution and minimizing torque during operation. Its lubricated cylindrical plug provides a reliable seal and enhances longevity, making it an optimal choice for pipeline systems carrying a range of fluids, including corrosive chemicals and hydrocarbons.

Versatile End Connections and Pressure Ratings

Available with raised face, flat face, or butt weld end types, this valve accommodates multiple piping standards such as ANSI, DIN, and BS, and offers compatibility with various system designs. Pressure ratings up to Class 600 make it suitable for both low and high-pressure applications, enhancing flexibility for different industrial requirements.

Durable Coating and Secure Sealing

An epoxy or phosphate coating protects the valve body from corrosion, extending its service life even in harsh operating environments. Sealing options include PTFE, elastomer, or graphite, ensuring reliable performance for different media and temperature ranges from -29C up to 180C.

FAQ's of Inverted Pressure Balance Lubricated Plug Valve:

Q: How does the inverted pressure balance design improve valve performance?

A: The inverted pressure balance design ensures equalized internal pressures, significantly reducing operating torque, enhancing seal reliability, and decreasing the risk of plug sticking, especially under high-pressure conditions.

Q: What applications are suitable for this lubricated plug valve?

A: This valve is ideal for use in chemical, petrochemical, oil & gas, and water treatment industries, handling media such as water, oil, gas, and various chemicals, due to its robust construction and corrosion-resistant coatings.

Q: When should I choose different sealing materials like PTFE, elastomer, or graphite?

A: Choose PTFE for general chemical resistance, elastomer for flexibility and sealing soft contaminants, and graphite for high-temperature or aggressive media. Selecting the appropriate sealing depends on the media type, pressure, and temperature of your application.

Q: Where are these valves typically installed in an industrial process?

A: These plug valves are commonly installed in main pipelines, manifolds, or branch lines where reliable on-off flow control and tight shut-off are required, in compliance with pipeline standards and operational safety needs.

Q: What is the inspection and testing standard for these valves?

A: All valves are inspected and tested according to API 598, ensuring leak-tight performance, material compliance, and operational integrity before delivery to end users.

Q: How is maintenance performed on this plug valve?

A: Maintenance is simplified by the lubricated plug and grease packing design. Periodic lubrication of the plug through the designated grease fitting extends valve life and maintains smooth operation over time.

Q: What are the benefits of the body coating options?

A: Epoxy coatings provide excellent corrosion protection, especially for water and chemical services, while phosphate coatings increase surface hardness and resistance to wear, extending overall valve serviceability.

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