Product Description
Schley T679 Pressure Regulating Valve
For industrial, chemical, steam, and oil & gas applications.
Connections: From DN15 to DN200 (1/2″ to 8″)
Outlet Pressures: From 0.5 to 40.0 bar
Materials available:
- Ductile cast iron 0.7040
- Cast steel 1.0619
- Stainless steel 1.4408
- Bronze CC480K (GbZ10)
- Aluminum bronze CC333G
- Super Duplex 1.4469
Technical Information
Technical Information for T679
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Valve SizesDN15 (1 /2”) to DN65 (2 1/2”)
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Pressure RatingPN16 - PN40 / CL 150 - CL300, 10K - 30K
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Flange according toDIN, ASME, ANSI, JIS
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MaterialsEN-JS1030 | 1.0619+N / WCB | 1.4408 I CF8M | 1.4469 / Super Duplex to +200°C
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Temperature range-45°C to +450°C
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Modular construction system(same construction parts for gas and liquids)
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With inside pulse lineYes
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Outlet pressure0,5 to 20 bar, lower and higher pressures available on request
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SealingCone metallic sealing with stainless steel bellow 1.4571
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Suitable for compressible and incompressible mediaYes
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Max. reduction ratio25:1
Notes:
- Compact construction type
- Easy fit to the respective use because of the big variety of options
- The same construction parts for gas, liquids, and steam for an easier
maintenance and repair - Inside spring (protected by bonnet)
- Pulse line built at the valve, no installation of an external line
- Simple and robust construction type for high reliability and easy
maintenance - Lower total operational cost due to the optimised construction
- Safe against pressure surges (stainless steel bellow)
- High control accuracy
- Constant control of the outlet pressure irrespective of inlet pressure
- The valve locks up securely due to low low-pressure increase
Silent Guardians of Pressure
Don’t let high pressure become a high-pressure situation. Pressure-reducing valves stand guard, discreetly regulating fluid flow and ensuring it stays within safe and optimal ranges
Downloads
View or Download the Type T679 Datasheet
Full Technical Information - Including Flow Rates
View or Download the Type T679 Datasheet
The function of overflow valves (relief valves, pressure retaining valves) is, to the outflow of the medium at a set pressure, in which an existing back pressure or vacuum does not affect the set overpressure (retaining pressure). The above-listed items are characteristic of an upstream pressure regulator, by comparison to a normal safety valve. The safety valve is only a device to prevent a specific pressure from being exceeded (set pressure).
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