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Check valves

Description:

These valves are designed to be mounted on a stainless steel pipe and designed to prevent the backflow of liquid. To guarantee its functionality is necessary to ensure a constant flow of media without sudden changes of liquid flow. This type of valve is opened by the pressure of the flowing medium on the disk. The valve opens if the pressure is higher than the pressure of disk media behind the disk (pressure on the stem and spring). The valve will be closed If the pressures in front of and behind the disc are balanced.

Properties:

  • Standard: DIN
  • Type: 2-piece, welded DIN 11850-1, clamp connections DIN 32676, threaded BSP-G DIN 11851
  • Material: Stainless steel - 1.4301 (AISI 304)
  • Maximal working temperature: –10 °C/120 °C
  • Gasket: silicone

Most Common Areas of Check Valves Applications:

Wineries, breweries, dairy industry, beverage industry, food processing, pharmaceutical­s, etc.

Installation:

  • An arrow on the valve casing indicates the direction of the flow.
  • It is recommended that the valve be positioned some distance from any change of direction in the pipework or from other apparatus in order not to place it in a turbulent zone which would increase its wear. (Between 3 and 5 times the diameter in a straight line both upstream and downstream of the valve).
  • The valve is installed in front of the pump to ensure the proper operation of both the pump and the valve.
  • Remove solid particles from the piping system.
  • Before welding disassemble the valve to avoid damaging the gasket. Make sure that the surfaces of the threaded connections are clean and undamaged. Make sure that the surfaces of the CLAMP connections are clean and undamaged and use CLAMp gasket and CLAMP heavy duty.
  • Before installation, the pipes must be depressurized and purged (empty of fluid) in order to avoid any danger to the operator. If the installation has carried fluids that are dangerous in themselves if in contact with the outside atmosphere (inflammable, corrosive, toxic, explosive,..) it must be thoroughly cleaned to eliminate all risks.

Characteristics VMQ (silicone) Gaskets:

VMQ silicone rubbers work great in heat-intensive applications and, due to their purity, are particularly suitable for hygienic applications in the food, beverage, and pharmaceutical industriesDue to its excellent physiological properties, silicone is a proven sealing material, especially for flap seals. Due to small volume changes of VMQ and due to its high elasticity, the damper works reliably until the end of its service life. VMQ is advantageous in food, beverage, and formulation applications for less aggressive media. It is necessary to point out the maximum limits with regard to mechanical strength and cleaning processes.

  • Temperature range from –50 ° C to + 180 ° C
  • Good resistance to synthetic, animal fats and vegetable oils, glycol, non-flammable hydraulic fluids, and various solvents.

Suitable applications for VMQ:

  • Processing of animal and vegetable fats, oils and waxes, essential oils.
  • Applications with high-temperature ranges.
  • VMQ is suitable for use in the CIP / SIP system for continuous operation in the food, beverage, and pharmaceutical industries, with the exception of steam sterilization.

Warning: VMQ should not be used in concentrated acids (eg nitric acid, formic acid), concentrated oxidizing media (eg peracetic acid), or for water and vapors above 100 °C, esters and ethers, aromatic hydrocarbons (arenes)

Material certificate EN 10204 3.1 on request.

FDA certificate of the seals on request.

Spare Spring For Stainless Steel Check Valves…

Spare Spring For Stainless Steel Check Valves Welded, CLAMP | DN15/DN20/DN25

Price from 28,00 Kč

Sanitary stainless steel check valve, welded type…

Properities: Standard: welded DIN11850-series1, DN15 Type 2: 2-piece, components…

Price from 744,00 Kč

Spare Gasket (O-ring) For Stainless Steel Check…

Spare Gasket (O-ring) For Stainless Steel Check Valves Welded, CLAMP | DN15/DN20/DN25 The…

Price from 25,00 Kč

Spare Spring For Stainless Steel Check Valves…

Spare Spring For Stainless Steel Check Valves Welded, CLAMP | DN32

Price from 28,00 Kč

Spare Gasket (O-ring) For Stainless Steel Check…

*** NOT TRANSLATED ***

Price from 25,00 Kč

Sanitary stainless steel check valve, welded type…

*** NOT TRANSLATED *** Properites: Standard: welded DIN11850-series1, DN20 Type 2:2-…

Price from 744,00 Kč

Sanitary stainless steel check valve, welded type…

Properities: Standard:welded DIN11850, DN25 Type 2: 2- piece, components connected with…

Price from 744,00 Kč

Spare Gasket (O-ring) For Stainless Steel Check…

Spare Gasket (O-ring) For Stainless Steel Check Valves Welded, CLAMP | DN40 The collar…

Price from 30,00 Kč

Spare Spring For Stainless Steel Check Valves…

Spare Spring For Stainless Steel Check Valves Welded, CLAMP | DN40

Price from 35,00 Kč

Spare Spring For Stainless Steel Check Valves…

Spare Spring For Stainless Steel Check Valves Welded, CLAMP | DN50

Price from 35,00 Kč

Sanitary stainless steel check valve, welded type…

Properities: Standard:welded DIN11850-series1, DN32 Type 2: 2- piece, components…

Price from 775,00 Kč

Spare Gasket (O-ring) For Stainless Steel Check…

Spare Gasket (O-ring) For Stainless Steel Check Valves Welded, CLAMP | DN50 Diameter of…

Price from 30,00 Kč

Sanitary stainless steel check valve, welded type…

Properities: Standard: welded DIN11850-series1, DN40 Type 1: 2- piece, components…

Price from 806,00 Kč

Sanitary stainless steel check valve, welded type…

Properites: Standard: welded DIN11850-series1, DN50 Type 2: 2- piece, connected with…

Price from 960,00 Kč

Stainless Steel Check Valve, threaded 1/4”

Thanks to its design, this non-return valve can be used for less demanding applications…

Price from 149,94 Kč

Spare Gasket (O-ring) For Stainless Steel Check…

Spare Gasket (O-ring) For Stainless Steel Check Valves Welded, CLAMP | DN15/20 O-ring…

Price from 6,00 Kč

Stainless Steel Check Valve, CLAMP C-C DN15

Standard: DIN 32676 Type: 2-piece, CLAMP connection (diameter of the CLAMP collar 34 mm)…

Price from 988,00 Kč

Stainless steel check valve, floating, threaded 1…

Montage: The non-return valve is connected by screwing it into a suitable counterpart. We…

Price from 134,00 Kč

Stainless steel check valve, thread 1/2”

Thanks to the design, this non-return valve can be used for less demanding applications…

Price from 149,85 Kč

Stainless steel check valve, threaded 3/4”

*** NOT TRANSLATED ***  Díky konstrukčnímu provedení, je tutu zpětnou klapku možné použít…

Price from 174,00 Kč

Stainless Steel Check Valve, CLAMP C-C DN20

Standard: DIN 32676 Type: 2-piece, CLAMP connection (diameter of the CLAMP collar 34 mm)…

Price from 854,89 Kč

Stainless steel check valve, floating, threaded 3…

Montage: The non-return valve is connected by screwing it into a suitable counterpart. We…

Price from 162,00 Kč

Stainless Steel Check Valve, CLAMP C-C DN20 (K50…

standard: DIN 32676 type: 2-piece, connection CLAMP (CLAMP collar 50.5 mm) max. working…

Price from 868,00 Kč

Stainless Steel Check Valve, threaded 1”

Thanks to the design, this non-return valve can be used for less demanding applications…

Price from 234,90 Kč
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