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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overflow valve 1" inch female type UV16 made of stainless steel 316 L/CF8M pressure range 0,5 - 2,5 bar seal NBR for liquid and gaseous media

diameter:

1" inch female

connection:

female thread BSP-P

seal:

NBR

material:

stainless steel 316 L/CF8M

range of adjustment:

0,5 - 2,5 bar

NieRuf-Exchange
24 months warranty
Certified
€260.60*

€310.11 VAT included.

Delivery time: in stock

Express delivery:

overflow valve 1/2" inch female type UV16 made of stainless steel 316 L/CF8M pressure range 0,2 - 0,8 bar seal FKM for liquid and gaseous media

diameter:

1/2" inch female

connection:

female thread BSP-P

seal:

FKM

material:

stainless steel 316 L/CF8M

range of adjustment:

0,2 - 0,8 bar

24 months warranty
Certified
€241.80*

€287.74 VAT included.

Delivery time: 3 - 5 working days

overflow valve 1" inch female type UV16 made of stainless steel 316 L/CF8M pressure range 2,0 - 12,0 bar seal EPDM for liquid and gaseous media

diameter:

1" inch female

connection:

female thread BSP-P

seal:

EPDM

material:

stainless steel 316 L/CF8M

range of adjustment:

2,0 - 12,0 bar

NieRuf-Exchange
24 months warranty
Certified
€260.60*

€310.11 VAT included.

Delivery time: in stock

Express delivery:

overflow valve 3/4" inch female type UV16 made of stainless steel 316 L/CF8M pressure range 0,5 - 2,5 bar seal EPDM for liquid and gaseous media

diameter:

3/4" inch female

connection:

female thread BSP-P

seal:

EPDM

material:

stainless steel 316 L/CF8M

range of adjustment:

0,5 - 2,5 bar

NieRuf-Exchange
24 months warranty
Certified
€251.30*

€299.05 VAT included.

Delivery time: in stock

Express delivery:

overflow valve 1/2" inch female type UV16 made of stainless steel 316 L/CF8M pressure range 0,2 - 0,8 bar seal NBR for liquid and gaseous media

diameter:

1/2" inch female

connection:

female thread BSP-P

seal:

NBR

material:

stainless steel 316 L/CF8M

range of adjustment:

0,2 - 0,8 bar

NieRuf-Exchange
24 months warranty
Certified
€241.80*

€287.74 VAT included.

Delivery time: in stock

Express delivery:

overflow valve 1" inch female type UV16 made of stainless steel 316 L/CF8M pressure range 0,5 - 2,5 bar seal EPDM for liquid and gaseous media

diameter:

1" inch female

connection:

female thread BSP-P

seal:

EPDM

material:

stainless steel 316 L/CF8M

range of adjustment:

0,5 - 2,5 bar

NieRuf-Exchange
24 months warranty
Certified
€260.60*

€310.11 VAT included.

Delivery time: in stock

Express delivery:

overflow valve 3/4" inch female type UV16 made of stainless steel 316 L/CF8M pressure range 2,0 - 12,0 bar seal NBR for liquid and gaseous media

diameter:

3/4" inch female

connection:

female thread BSP-P

seal:

NBR

material:

stainless steel 316 L/CF8M

range of adjustment:

2,0 - 12,0 bar

NieRuf-Exchange
24 months warranty
Certified
€251.30*

€299.05 VAT included.

Delivery time: in stock

Express delivery:

overflow valve 1/2" inch female type UV16 made of stainless steel 316 L/CF8M pressure range 0,5 - 2,5 bar seal EPDM for liquid and gaseous media

diameter:

1/2" inch female

connection:

female thread BSP-P

seal:

EPDM

material:

stainless steel 316 L/CF8M

range of adjustment:

0,5 - 2,5 bar

NieRuf-Exchange
24 months warranty
Certified
€241.80*

€287.74 VAT included.

Delivery time: in stock

Express delivery:

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.


FAQ

There for you


Special requests, spare parts or a quick support? Our staff will answer your questions and concerns immediately.

You can reach us from Monday to Friday at +497143 9666900 and any time at info@nieruf.de

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Quality


Our certified quality management according to DIN EN ISO 9001: 2015 is part of our DNA. With our test stands we can carry out pressure tests with up to 350 bar with air and water as well as leak tests according to DIN EN 122661.

This is NieRuf


Committed

Commitment engenders trust. We stand by our word and are convinced that as a result not only our customers but also everyone we work with can rely on us.

Motivated

We always strive to find the best solution for our customers. It is our goal and incentive to have completely satisfied customers.

Competently

Technical and commercial expertise form the basis for developing qualified solutions tailored precisely to the needs of our customers.

Flexible

We do not adhere to rigid guidelines but instead focus on the individual wishes and needs of our customers. They are more important to us than internal company processes.

Call NieRuf GmbH

Need help?

If you have any questions, we are available by phone from Monday to Friday from 8:30 a.m. to 5:00 p.m.

Fax order: 07143 / 96669 - 01

07143 / 96669 - 00