Description
Flanged 316 Stainless Steel Normally Open Solenoid Control Valve – Z-Tide Industrial NOBFE-SS Series
The Z-Tide Industrial NOBFE-SS Series is a heavy-duty flanged 2/2 way normally open 316 stainless steel solenoid control valve designed for reliable control of water, steam and compatible process fluids in large bore industrial pipelines.
Featuring an externally piloted, pressure-assisted piston design with patented anti-water hammer technology, the valve remains open when de-energised and closes when electrically energised. This makes the NOBFE-SS particularly suitable for fail-safe cooling, process water, steam and industrial fluid control applications.
Available from DN50 to DN500 with PN16 flanges as standard, plus optional ANSI 150 lb and JIS10K flange drilling, the NOBFE-SS combines exceptionally high flow capacity with controlled 3–5 second operation and highly corrosion-resistant 316 stainless steel construction.
The main valve body and piston are manufactured from 316 stainless steel, together with a 316 stainless steel pilot solenoid valve and stainless steel internal control components, providing increased corrosion resistance for demanding industrial and process environments.
Valve Function & Operation
Function: 2/2 way normally open
Operating principle: Pressure-assisted external pilot piston
Anti-water hammer: Patented controlled piston design
Minimum operating pressure: 0.7 Bar differential
Flange sizes: DN50 to DN500 PN16
Optional flange standards:
✓ ANSI 150 lb
✓ JIS10K
✓ Other flange standards on request
Pressure & Flow
Pressure range: 0.7 to 10 Bar
Minimum differential pressure: 0.7 Bar
Opening / closing time: 3 to 5 seconds
Maximum media viscosity: 50 cSt
Cycle life: 500,000 cycles
Designed for exceptionally high flow rates in large bore industrial water, steam and compatible process fluid systems.
Construction & Materials
Body: 316 stainless steel
Piston: 316 stainless steel
Internals: Stainless steel
Spring: Stainless steel
Pilot solenoid valve: 316 stainless steel
Control pipework and fittings: Stainless steel
Standard seals: NBR U-ring
Optional seals:
✓ FKM (Viton)
✓ EPDM
✓ FFKM up to +200°C
Body pressure test: 32 Bar
The 316 stainless steel construction provides increased resistance to corrosion compared with standard 304 stainless steel, making the NOBFE-SS particularly suitable for demanding industrial environments and compatible process fluids.
Media Compatibility
✓ Water
✓ Steam
✓ Process water
✓ Cooling water
✓ Light oils up to 50 cSt
✓ Compatible process fluids
✓ Compatible non-corrosive fluids
Media compatibility, pressure and maximum operating temperature must be confirmed against the selected seal material and valve construction before use.
Coil & Electrical
Standard coil: M16
DC power: 26 Watts
AC inrush: 70 VA
AC holding: 35 VA
Insulation: Class F 155°C
Duty cycle: 100% continuous
Electrical connection: DIN43650A
Protection: IP65 with connector fitted
Approval: CE
IP65 connector: Supplied
Voltage Options
DC: 12V, 24V or 125V DC
AC: 24V, 110V or 230V AC 50/60 Hz
ATEX Option
Optional explosion-protected solenoid operator available for hazardous-area installations.
Gas protection: Ex mb IIC T4 Gb
Dust protection: Ex mb tb IIIC T130°C Db
Temperature class: T4
Suitable for: Zone 1 gas / Zone 21 dust
IP protection: IP65
Maximum media temperature with ATEX coil: +80°C
Typical Applications
✓ Fail-safe cooling water systems
✓ Emergency process cooling
✓ Steam distribution systems
✓ Chemical process systems
✓ Food and beverage processing
✓ Industrial process water
✓ Water treatment plants
✓ Corrosive environment systems
✓ Large bore pipeline automation
✓ Industrial fluid control systems
Heavy-Duty 316SS Construction
The Z-Tide Industrial NOBFE-SS Series is engineered for demanding industrial environments where increased corrosion resistance, high flow capacity and dependable fail-safe operation are required.
Its heavy-duty 316 stainless steel valve body and piston are complemented by stainless steel internal components, spring, external control pipework and fittings. A 316 stainless steel pilot solenoid valve provides a similarly corrosion-resistant external control system.
Compared with the 304 stainless steel NOBFE-S Series, the 316 stainless steel NOBFE-SS provides increased resistance to corrosion, making it the preferred option for more demanding process environments and compatible fluids where 304 stainless steel may not provide sufficient long-term protection.
The patented cylindrical piston design and externally piloted control system provide exceptionally high flow capacity while helping to reduce damaging water hammer. Controlled opening and closing over approximately 3–5 seconds is particularly beneficial on large bore pipelines where rapid changes in flow can create substantial hydraulic shock.
The removable external pilot assembly allows servicing of the control system without removing the complete main valve body from the pipeline, helping to minimise maintenance time and plant downtime.
With a design life of 500,000 cycles and a choice of NBR, FKM, EPDM or high-temperature FFKM seals, the NOBFE-SS can be configured for a wide range of water, steam and compatible industrial process fluid applications.
As a normally open valve, the NOBFE-SS maintains flow when de-energised and closes when electrically energised, making it particularly suitable for fail-safe systems where continued flow is required in the event of electrical power loss.
Ordering Information
Select the required flange size, seal material, voltage and flange standard before adding the valve to your basket.
Available options include:
✓ DN50 to DN500 sizes
✓ PN16 flanges as standard
✓ ANSI 150 lb flange option
✓ JIS10K flange option
✓ NBR, EPDM, FKM or FFKM seals
✓ FFKM high-temperature option
✓ AC and DC voltage options
✓ Optional ATEX hazardous-area coil
✓ Other flange standards on request
For steam, chemical, high-temperature or unusual process media applications, contact us before ordering so that fluid compatibility, seal material and valve configuration can be confirmed.
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