Single-seat angular control valve

Summary:The valve features a simple structure, with the valve body's inlet and outlet arranged at a 90° angle. It boasts low flow resistance and high valve capacity, along with a wide adjustability range and highly accurate flow characteristics.

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Product Details

Overview

The valve features a simple structure, with the inlet and outlet of the valve body arranged at a 90° angle. It boasts low flow resistance and high valve capacity, along with a wide adjustability range and excellent accuracy in flow characteristics.
Due to the angular control valve's dead-corner-free flow passages and straightforward flow path, it features a "self-cleaning" function, making it ideal for applications involving high-viscosity fluids, as well as those containing suspended liquids and particulate matter.
The angular regulating valve belongs to the single-seat valve category, featuring low leakage. However, since it retains the single-seat design, the larger the diameter, the smaller the allowable pressure difference.
The flow path is simple and typically used for low-in, side-out configurations, which helps ensure better stability during regulation.

Structural Form

Major Components and Supporting Materials

Valve	Components	Structural Type	Material	Note
	Valve body	Angular single-seater	Carbon steel, stainless steel, special alloy steel	Casting, Forging
	Valve core	Piston-type, force-balanced valve plug	Stainless steel, special alloy steel	Seal surface surfacing and coating
	Valve seat	O-shaped external thread, sleeve-type	Stainless steel, special alloy steel	Seal surface surfacing and coating
	Valve cover	Room-temperature and heat-dissipation type	Stainless steel, special alloy steel
	Filler	V-shaped, O-shaped	PTFE, Flexible Graphite
	Sealing gasket	Serrated, lens-shaped pad	Stainless steel, special alloy steel
Executive Agency	Pneumatic diaphragm multi-spring type, cylinder		Spring range (kPa): 20–100, 40–200, 80–240, 120–240
	Pneumatic diaphragm multi-spring type, cylinder		Input signal (kPa): 150–400; Positioner 4–20 mA DC, 1–5 V
	All-electronic 3610L, PS Series		Input signal: 4–20 mA DC, wiring: 2-1/2 NPT

Features

　　The flow path is simple, with the inlet and outlet arranged at a 90° angle, resulting in low flow resistance and excellent flow capacity. This valve inherits the advantages of single-seat control valves and is particularly well-suited for controlling highly viscous fluids containing suspended solids or particulate media—effectively preventing coking, sticking, and blockage within the valve body passages.

Main Technical Parameters

　　Nominal diameter: DN40–DN200 mm

　　Nominal pressure: PN1.6–6.4 MPa, ANSI 150–600

　　Flow characteristics: Linear, equal percentage; Flow coefficient: Cv 1–700

　　Leakage Level: Class IV, Adjustable Ratio R: 50:1

　　Connection methods: Flanged, welded Operating temperature: -29°C to +560°C

Keywords: Single-seat angular control valve

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