Wenhan Pressure Relief PVRV Valves

WH-5102(2.5 inch PVRV)

The breathing valve has two functions. When the pressure is higher than the set pressure (standard 1BAR), it can be vented, and vice versa.

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Product Introduction

Wenhan Pressure Relief PVRV Valves are high-performance safety valves designed for use in a wide range of industrial applications. These valves are engineered to provide precise pressure control, ensuring safe and reliable operation of equipment and systems under varying operating conditions. With features such as compact design, low maintenance requirements, and robust construction, offer unparalleled durability and longevity. Additionally, these valves are available in a variety of sizes and materials to meet the specific needs of any application. Whether used in chemical processing, oil and gas production, or power generation, essential element in maintaining safe, efficient operations.

Introduction to functions and features

The valve is applied to a pressure vessel type piping system. The breathing valve has two functions. When the pressure is higher than the set pressure (standard 1BAR), it can be vented, and vice versa. When the vacuum is generated in the piping system (standard -0.2BAR) When the valve is automatically opened to ensure the safety protection of the equipment and related instruments, it can also meet the needs of various production processes. The valve is made of stainless steel and hygienic design, which is suitable for various food processing, beer, beverage and pharmaceutical industries. Industrial field.

Size	D2	D1	D3	H
Φ34	Φ34	Φ25	Φ30.5	49mm
1”	Φ34	Φ25	Φ30.5	49mm
1.5”	Φ50.5	Φ35	Φ42	72mm
2”	Φ64	Φ47	Φ51	85mm
2.5”	Φ78	Φ59	Φ64	90mm
3.5”	Φ105	Φ83	Φ88	135mm

Technical parameters: Interface: clamp Pressure: 0.2mpa Temperature: -30C. +150c. Working medium: gas

Disassembly and assembly

Disassembly

●Unscrew the valve bonnet (9) in anti-clockwise direction by inner square wrench, disassemble the spring (8), up valve plate (6), lower valve plate (4) and the connecting parts.

●Disassembly clamp spring (7) and remove spring (10).

●Disassembly lower valve plate (4) and remove sealing gasket (5) (The pressure from spring (10), (8) were released)

Vacuum Safety Valve Product Overview:

Installed in a normal non-negative pressure system, the valve automatically opens when the container and system's relief valve is not open and a negative pressure is generated. The negative pressure safety valve is suitable for various containers and equipment with PN1.0～2.5MPa and working temperature≤200°C, and the opening pressure is -0.001～-0.09MPa. Different materials can be used for air, steam, sexual media, and other media.

NO	Name	Material
1	Valve body	SS304
2	Valve element	EPDM
3	Filler plate	SS304
4	The valve core seat	SS304
5	Negative pressure	SS304
6	Positive pressure spring	SS304
7	Blind nut	SS304

1.Widely Usage:Suitable for beer, beverage, dairy, edible oil, biological, pharmaceutical, textile, chemical and other industries.

2.Functions of Exhalation and Inhalation:The valve has the functions of exhalation and inhalation, which greatly reduces the cost and installation space, and ensures the safety of the system of the container and the pipeline.

3.Safe to Use:When the internal pressure of the vessel is higher than the set pressure, the valve will automatically open to vent outside the vessel, otherwise the valve will close.

4.Not Easy to Deform:When a negative pressure is generated in the container, the valve will automatically open to inhale into the container; prevent the container from deforming.

5.Package Including:1 x Pressure Reducing Valve.

Application Scene