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A solution for systems under pressure? Overflow Valve!

Within a pipeline system under pressure, different volume flow rates are a common problem. They can harm or even destroy the system. Mostly, the cause lies in the late or non-existing control over the media, for example a pump, which causes the pressure. As a result, the pump continues to build up pressure even when the pressure is already too high. This results in damage to the pump, or even in an explosion that destroys the entire system and might harm people and can cause tremendous amount of loss. Overflow valves from NieRuf industrial valves are the solution to this problem.

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flange sight flow indicator DN150 - 6" Inch  FS02 GS - C25 soda lime glass 4
angle-type overflow valve 3/8" inch fm UV01 gunmetal/brass 2 - 12 bar

Article No.: UV01020002

angle-type overflow valve 3/8" inch fm type UV01 made of gunmetal/brass pressure range 2 - 12 bar seal FKM for liquid and gaseous media
75.90€ *
90.32€ incl. VAT

Delivery time: at stock

Express shipping:

datasheet
flange sight flow indicator DN20 - 3/4" Inch  FS02 GS - C25 soda lime glass 3
angle-type overflow valve 1/2" inch fm UV01 gunmetal/brass 2 - 12 bar

Article No.: UV01020003

angle-type overflow valve 1/2" inch fm type UV01 made of gunmetal/brass pressure range 2 - 12 bar seal FKM for liquid and gaseous media
71.90€ *
85.56€ incl. VAT

Delivery time: at stock

Express shipping:

datasheet
flange sight flow indicator DN50 - 2" Inch  FS02 GS - C25 soda lime glass 3
angle-type overflow valve 1" inch fm UV01 gunmetal/brass 2 - 12 bar

Article No.: UV01020005

angle-type overflow valve 1" inch fm type UV01 made of gunmetal/brass pressure range 2 - 12 bar seal FKM for liquid and gaseous media
123.60€ *
147.08€ incl. VAT

Delivery time: at stock

Express shipping:

datasheet
flange sight flow indicator DN40 - 1 1/2" Inch  FS02 GS - C25 soda lime glass 3
angle-type overflow valve 1 1/4" inch fm UV01 gunmetal/brass 2 - 12 bar

Article No.: UV01020006

angle-type overflow valve 1 1/4" inch fm type UV01 made of gunmetal/brass pressure range 2 - 12 bar seal FKM for liquid and gaseous media
172.10€ *
204.80€ incl. VAT

Delivery time: at stock

Express shipping:

datasheet
flange sight flow indicator DN65 - 2 1/2" Inch  FS02 GS - C25 soda lime glass 3
angle-type overflow valve 1 1/2" inch fm UV01 gunmetal/brass 2 - 12 bar

Article No.: UV01020007

angle-type overflow valve 1 1/2" inch fm type UV01 made of gunmetal/brass pressure range 2 - 12 bar seal FKM for liquid and gaseous media
252.20€ *
300.12€ incl. VAT

Delivery time: at stock

Express shipping:

datasheet
flange sight flow indicator DN32 - 1 1/4" inch  FS02 GS - C25 soda lime glass 3
angle-type overflow valve 2" inch fm UV01 gunmetal/brass 2 - 12 bar

Article No.: UV01020008

angle-type overflow valve 2" inch fm type UV01 made of gunmetal/brass pressure range 2 - 12 bar seal FKM for liquid and gaseous media
369.70€ *
439.94€ incl. VAT

Delivery time: at stock

Express shipping:

datasheet
flange sight flow indicator DN125 - 5" Inch  FS02 GS - C25 soda lime glass 3
angle-type overflow valve 1/2" inch fm UV02 gunmetal/brass 0,5 - 2,5 bar

Article No.: UV02010003

angle-type overflow valve 1/2" inch fm type UV02 made of gunmetal/brass pressure range 0,5 - 2,5 bar seal PTFE for liquid and gaseous media
71.90€ *
85.56€ incl. VAT

Delivery time: at stock

Express shipping:

datasheet
flange sight flow indicator DN80 - 3" Inch  FS02 GS - C25 soda lime glass 3
angle-type overflow valve 3/4" inch fm UV02 gunmetal/brass 0,5 - 2,5 bar

Article No.: UV02010004

angle-type overflow valve 3/4" inch fm type UV02 made of gunmetal/brass pressure range 0,5 - 2,5 bar seal PTFE for liquid and gaseous media
93.60€ *
111.38€ incl. VAT

Delivery time: at stock

Express shipping:

datasheet
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Individual overflow valves to protect the pumps

In order to protect a system or container, overflow valves (also called bypass valves or control valves) can be used. Once the pressure is too high, the valve activates a bypass, which reduces the pressure within the system. The media now flows through the open overflow valve, and the bypass leads it back into the flow of the pump, thereby creating a separate loop. The media continues to flow through the bypass valve, until the pressure within the system is reduced and causes the overflow valve to close again.

Adjustable overflow valves to keep your system running reliably:

Here at NieRuf, you will find the control valve that suits your needs. Our overflow valves can be delivered adjusted and sealed to a specific pressure, or adjustable. It is possible to adjust the valve while the system is running without any leakage. We provide overflow valves in the following nominal sizes: 3/8“, ½“, 3/4“, 1“, 1 ¼“, 1 ½“, und 2“. They come with thread connections or flange connections in the nominal sizes DN20, DN25, DN32, DN40, DN50, DN65 or DN80. Depending on the media, the overflow valves come with EPDM, FKM / Viton or PTFE seals in order to assure a maximum of tightness. Their pressure range varies from 0,5 – 20,0 bar. Whether you need stainless steel or gunmetal overflow valves or bypass valves, NieRuf is your expert. Inquire for specific relief valves, and we will be happy to help.

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