RP Series Rising Plug Valves

RP Series Rising Plug Valves

Rising plug valves are a type of industrial valve commonly used in various applications, including oil and gas, petrochemical, power generation, and water treatment industries. They are designed to control the flow of fluids by utilizing a cylindrical or tapered plug that moves up and down within the valve body to regulate the passage of the fluid.The key characteristic of rising plug valves is the rising stem design, which means that the stem of the valve moves in a linear upward direction as the plug is lifted or lowered. This motion provides a visual indication of the position of the plug, making it easier to monitor and control the valve's operation.The plug itself is typically made of metal, such as stainless steel or brass, and features a tapered or cylindrical shape. The plug is directly connected to the valve stem, which extends through the valve bonnet. As the stem is turned or rotated, the plug moves vertically, either opening or closing the flow passage.Rising plug valves are known for their durability and ability to handle high-pressure and high-temperature applications. They offer excellent sealing capabilities, ensuring tight shut-off when fully closed and minimizing leakage when in the open position. The rising stem design also allows for easy maintenance and repair, as the stem and plug can be accessed without removing the valve from the pipeline.These valves can be operated manually, using a handwheel or lever, or automated with the use of actuators for remote control and integration into process control systems. The rising stem provides a visual indication of the valve's position, making it suitable for applications where precise control of fluid flow is required.It's important to note that rising plug valves are generally used for on-off applications rather than precise flow control. They are commonly employed in systems where the flow needs to be completely shut off or fully open, rather than throttling the flow rate.

RP Series Rising Plug Valve Features:

• Nonrotating stem for longer seat life.
• Roddable, straight-through flow path for maximum flow with minimum pressure drop.
• Stem thread lubricant isolated from system media.
• Replaceable seat and stem tip design.
• Stem thread is protected from outside contamination by the PTFE ring in the gland.
• Panel mounting is available as an option.
• Handle color options are available.
• Leak-tight performance testing for every valve with nitrogen at the maximum working pressure.
• Maximum working pressure: Stainless steel: 6000 psig (414 bar）
• Working temperature:Acetal:-20°F to 250°F（-28°C to 121°C）PEEK:-20°F to 400°F（-28°℃ to 204°C）PFA:-20°F to 400°F（-28°C to 204°C）

RP Series Rising Plug Valve Standard Materials of Construction:

Item

Component

Valve Body Material

316 SS

304 SS

321 SS

Alloy R-405

1

Handle

Anodized aluminum or stainless steel or black knob

2

Set Screw

stainless steel

3

Wiper Ring

PTFE/D1710

4

Upper Stem

316 SS/A276

304 SS/A276

321 SS/A276

Alloy R-405/B164

5

Panel Nut

17-4PH

6

Bonnet

316 SS/A479

304 SS/A479

321 SS/A479

Alloy R-405/B164

7

Backup Ring

PTFE/D1710

8

O-ring

Fluorocarbon FKM

Buna-N

Ethylene propylene

9

Lock Nut

17-4PH

10

Stem Tip

316 SS/A276

304 SS/A276

321 SS/A276

Alloy R-405/B164

11

Seat

Acetal or PEEK or PFA

12

Body

316 SS/A479

304 SS/A479

321 SS/A479

Alloy R-405/B164

RP Series Rising Plug Valve Dimensions:

Basic Ordering Number	Connection Type and Size		Orifice in(mm)	Cv	Dimension, in.(mm)
	Inlet	Outlet			L1	L2	C	D	E	F		H
-RP-FN4-4	1/4” Female NPT	1/4” Female NPT	0.16(4.0)	0.63	1.12(28.4)	1.13(28.6)	0.44(11.1)	2.17(55.0)	1.08(27.5)	0.25(6.4)	0.65(16.0)	3.77(95.8)
-RP-MN4-FN4-4	1/4” Male NPT	1/4” Female NPT	0.16(4.0)	0.63	1.12(28.4)	1.13(28.6)	0.44(11.1)	2.17(55.0)	1.08(27.5)	0.25(6.4)	0.65(16.0)	3.77(95.8)
-RP-MN8-FN4-4	1/2” Male NPT	1/4” Female NPT	0.16(4.0)	0.63	1.89(48.0)	1.13(28.6)	0.44(11.1)	2.17(55.0)	1.08(27.5)	0.25(6.4)	0.65(16.0)	3.77(95.8)
-RP-FN8-6	1/2” Female NPT	1/2” Female NPT	0.25(6.4)	1.80	1.33(33.8)	1.33(33.8)	0.56(14.3)	2.50(63.5)	1.40(35.5)	0.38(9.7)	0.77(19.6)	3.83(97.3)
-RP-MN8-FN8-6	1/2” Male NPT	1/2” Female NPT	0.25(6.4)	1.80	2.16(55.0)	1.33(33.8)	0.56(14.3)	2.50(63.5)	1.40(35.5)	0.38(9.7)	0.77(19.6)	3.83(97.3)
-RP-MN12-FN8-6	3/4” Male NPT	1/2” Female NPT	0.25(6.4)	1.80	2.16(55.0)	1.33(33.8)	0.56(14.3)	2.50(63.5)	1.40(35.5)	0.38(9.7)	0.77(19.6)	3.83(97.3)

Advantages of Using the Rising Plug Valves:

Rising plug valves offer a number of advantages over other types of valves, including:

1. Simple design and fewer parts: Rising plug valves have a relatively simple design with fewer moving parts than other types of valves, such as gate valves or ball valves. This makes them more reliable and less prone to failure.2. Quick operation: Rising plug valves can be opened and closed quickly with a quarter-turn of the handle. This is ideal for applications where time is critical, such as in emergency situations.3. Low flow resistance: Rising plug valves have a full port design, which means that the opening through the valve is the same size as the pipeline. This minimizes flow resistance and pressure drop.4. Reliable leak-tight seal: Rising plug valves can provide a bubble-tight seal, making them ideal for applications where leakage is unacceptable.5. Versatile performance: Rising plug valves can be used with a wide variety of fluids, including liquids, gases, and slurries. They are also available in a wide range of materials and sizes to meet the specific needs of different applications.6. Easy to maintain: Rising plug valves are relatively easy to maintain, as they have few moving parts and can be disassembled and cleaned without removing the valve body from the pipeline.7. Long service life: Rising plug valves are known for their long service life, even in demanding applications.8. Wide range of operating temperatures and pressures: Rising plug valves are available in a wide range of operating temperatures and pressures, making them suitable for a variety of applications.

Overall, rising plug valves are a versatile and reliable type of valve that offer a number of advantages for a wide range of applications.

Common Applications of Rising Plug Valves:

Rising plug valves are a type of needle valve that uses a rotating plug to control the flow of fluid. The plug is attached to a stem that rises as the valve is opened, and lowers as the valve is closed. Rising plug valves are known for their tight shutoff and low flow resistance. They are also relatively easy to maintain and operate.

Common applications of rising plug valves include:

• Oil and gas industry: Rising plug valves are used in a variety of oil and gas applications, including pipelines, wellheads, and refineries. They are well-suited for handling high-pressure and high-temperature fluids.
• Chemical industry: Rising plug valves are also used in the chemical industry to control the flow of corrosive and abrasive fluids. They are also used in applications where tight shutoff is required, such as in the production of pharmaceuticals and food products.
• Power generation industry: Rising plug valves are used in power generation plants to control the flow of steam, water, and other fluids. They are also used in nuclear power plants to control the flow of radioactive fluids.
• Water and wastewater treatment industry: Rising plug valves are used in water and wastewater treatment plants to control the flow of water, sludge, and other fluids. They are also used in irrigation systems to control the flow of water to crops.
• Food and beverage industry: Rising plug valves are used in the food and beverage industry to control the flow of food products, such as milk, juice, and beer. They are also used in pharmaceutical manufacturing to control the flow of drugs and other products.

In addition to these specific industries, rising plug valves are used in a wide variety of other applications, including:

• HVAC systems
• Fire protection systems
• Pneumatic systems
• Hydraulic systems
• Marine applications
• Mining applications

Rising plug valves are a versatile and reliable type of valve that can be used in a wide range of applications. They are known for their tight shutoff, low flow resistance, and ease of maintenance.

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