Pressure Sustaining Valve 316 stainless steel flange DN15-150 1-5 or 4-10 Bar


£505.13 incl. VAT
£318.34 ex. VAT

Brand: Z-Tide Valves

Model: RFF

Stock: 1 in stock

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Pressure Sustaining Valve Direct Acting Z-Tide RFF
Function: pressure sustaining or back pressure valve (BPV)
Operation: Direct acting
Port: DN15, DN20, DN25, DN40, DN50, DN65, DN80, DN100 or DN150
Flange type: PN16, option JIS10K, ANSI150Lb or PN25 flange.
Back Pressure adjustment: 1 to 5 or 4 to 10 Bar, displayed by stainless steel pressure gauge (Included)
Body: 316 stainless steel, option Duplex 316 stainless steel
Flanges: CF8M sizes DN65, DN80 + DN100, other sizes welded flange 316L
Internals: stainless steel
Seals: NBR option Viton and EPDM
Media: air, water, pure water, light oil and other fluids under 40 CST and gases compatible with materials of construction.
Max inlet pressure: 25 Bar
Test pressure: 35 Bar
Temperature Range: -15°C to +80°C

Pressure sustaining valves are designed to maintain a pre-set back pressure, if the back pressure drops to the set value the valve will begin to close to maintain pressure, when pressure returns the valve will begin to open again.

Typically used to maintain pressure for critical systems upstream, by limiting flow to non-critical systems down stream if required to do so.

Technical Specification

Brand: Z-Tide Valves

Model: RFF

Width: 150.00 mm

Height: 85.00 mm

Depth: 150.00 mm

Weight: 1.30 kg

Valve / Product Type: Pressure Sustaining

Body Material: Stainless Steel

Port Size: 4 inch Flange DN100 , 5 inch Flange DN125 , 1/2 inch Flange DN15, 6 inch Flange DN150 , 3/4 Flange DN20, 1 inch Flange DN25, 11/4 inch Flange DN32, 11/2 inch Flange DN40, 2 inch Flange DN50, 21/2 inch Flange DN65 , 3 inch Flange DN80

Operation: Direct Acting

Pressure Maximum: 1 Bar, 1.2 Bar, 1.3 Bar, 1.4 Bar, 1.5 Bar, 1.6 Bar, 2 Bar, 2.5 Bar, 3 Bar, 3.5 Bar, 4 Bar, 4.5 Bar, 5 Bar, 5.5 Bar, 6 Bar, 6.5 Bar, 7 Bar, 7.5 Bar, 8 Bar, 8.5 Bar, 9 Bar, 10 Bar

Seals: NBR, FKM (Viton)

Media: Air, Fluid >50cSt (Non Aggressive), Fluid >50cSt (Slight Acid/Alkali), Gases (Non Aggressive), Gases (Slight Acid/Alakli), Oils + Fuels >50cSt Max, Water, Water (RO/Pure/Demin)

Orifice: 100mm, 125mm, 150mm, 15mm, 20mm, 25mm, 32mm, 40mm, 50mm, 65mm, 80mm