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Rupture discs and Safety valves may be used independently as primary safety devices or in conjunction.
Possible combinations are:
Disc and PSV in parallel: the disc is a second safety device in order to increase equipment safety (usually the rupture pressure of the disc is slightly above the setting of the valve). Typical application: liquefied gas tanks
Disc downstream a PSV in order to protect the PSV from corrosive chemicals present in the vent duct
Disc upstream a PSV: this solution allows combining the positive aspects of both devices: tightness of the disc and re-closure of the valve. In addition the discs protects the valve from corrosive or scaling process fluids, reducing the maintenance required by the more expensive and sensitive device. Main advantages are:
Protection of the valve from aggressive or scaling fluids
Avoid leakage due to valve scaling or corrosion (very important for dangerous fluids)
Reduce maintenance (cleaning, calibration)
Reduce the cost of the valve by using less expensive materials
Test the correct performance of the valve without plant shut-down and valve dismounting
The rupture pressure of the discs is the same of the setting of the valve; build up of pressure in the space between the disc and the valve must be monitored and avoided
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The ASTER ball valve, with full bore, is compact, flexible and easy for installing.
Blow-out proof system, with perfect air bubble sealing, does not need any maintenance, is equipped with wrapping seats ensuring long life cycles. The stem packing is composed of 3 seals: two o-rings for low pressure and an antifriction ring in PTFE for high pressure.
All valves are tested at 25 bar pressure, for a period longer than 48 hours.
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● Low Lift Safety Valves
● Material: Body-Cast Bronze, Valve Seat-Brass
● Orifice Size: 1/2"(15mm), 3/4"(20mm), 1"(25mm), 1¼"(32mm), 1½"(40mm), 2"(50mm)
● Working Pressure: 2~10 kgf/cm², 11~20kgf/cm²
● Working Temperature: -45~+185ºC
● Working Fluid: Noncorrosive gas, noncorrosive liquid, air, steam
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Sarasin RSBD manufactures and supplies a comprehensive range of pressure safety valves and safety devices. The variety of products covers all industrial applications in which protective action against overpressure is required.
Sebim Nuclear Valves
Sebim manufactures a wide range of nuclear safety relief valves and accessories. These products are used worldwide and adapted to individual customers’ specific requirements.
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Safety Relief Valves
Size range : DN6 - DN20 1/4" - 3/4"
Pressure rating : Up to 44 BAR
End connections : Inlet screwed male, outlet screwed female
Configurations : Angle relief, thermal relief, in-line relief
Materials : Bronze, gunmetal, austenitic stainless steel on request
These valves are designed for the protection of static and road-going storage tanks against damaging over pressurisation.
There are three basic sizes defined by the throat diameter and these are available with a variety of inlet and outlet connections the valves are designed and factory set to lift repeatedly within +/- 2% of the set pressure, and to re-seat above 92% of set pressure. Spring pre-compression and blow-down ring settings are lead sealed after test to inhibit unauthorised tampering, as these products are a category four-safety product. During testing pre-delivery, flow rates at 10% above set pressure are measured to ensure compliance with stated flow capacities.
The valves can be supplied with appropriate positioned drain holes to help prevent freezing caused by water ingress, though ideally the piping should be arranged to prevent this. Complete vessel protection assemblies can be supplied comprising of two relief valves, divertor valve, bursting discs and interconnecting pipe-work
Each valve is individually calibrated and stamped with the date of manufacture, and has it’s own unique serial number prior to dispatch.
All materials used are selected for their suitability to function at cryogenic temperatures. All valves are degreased for oxygen duty.
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DESCRIPTION
Bronze/Brass safety/relief valves for protection of hot water heating boilers, systems, cookers, sterilizers and similar equipment.
FEATURES
o ASME Certified Capacity
o 20-60 psig Set Pressures
o Corrosion Resistant Construction
o Polished Chrome Finish
o Directive 97/23/EC (PED) Compliance Available
o MADE IN THE USA
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Series 2700
ASME NB Certified: Air, Steam & Water
European CE Approved
Sizes 1/2%u2033 X 1%u2033 to 1-1/2%u2033 X 2-1/2%u2033. Effective orifice areas from 0.068 to 0.573
square inches. Pressures from 15 to 6500 psig. Temperature range of -450° F
to +750° F.
Stainless steel body and trim with carbon steel bonnet. Optional materials of
construction include complete 316 stainless steel, Monel, and Hastelloy C.
Materials suitable for NACE service available.
Available with threaded, flanged, socket weld, welding nipple or sanitary connections.
Optional O-ring seat for ultimate tightness. Maximum blow down
of 10% to 20% on all fluids. Balanced design available in %u201CC%u201D and %u201CD%u201D orifices
which nullify effects of backpressure.
Applications: air, gas, vapor, and liquid process service.
Series T6000
Series
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- Model / code: S153
- Category: Safety Valve
- Body Material: Brass or stainless steel
- Inlet Pressure: 450 bar
- Outlet Range: 5-450 bar
- Connections: 3/8 " BSPP
- Valve Size: 5 mm
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The valves are especially designed for protection of components against excessive pressure and to meet the strict quality demands and safety requirements for industrial refrigeration installations, specified by international classification societies
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Revalco Safety valves are springloaded safety devices for protection against inadmissable pressures.
The valves can be used for protection of pressure vessels, compressors, liquid lines and in all places where overpressure could severely damage the installation and/or the surroundings
Working media
Applicable for all common refrigerants such as NH3, R22, R134A, R404A, R502, R507, R404A, R407C, R410A and non-corrosive gases/liquids. When using brines or refrigerants other then the above mentioned please consult your local Revalco representative.
Testing and Certification
Every valve will be calculated according to EN13136 and factory tested according to EN12284. The Design is according to CE PED 97/23/EC.
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VSP safety valve
The over/under pressure VSP 273 Safety Valve has been engineered in order to protect silos and hoppers against occasional over - and under - pressures which can be generated by :
Pneumatic filling
Blockage of the vacuum cleaning filter
Fermentations
Variations in temperature
Condensation
The VSP 273 has been designed to only work on roof.
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Superior Turbine Tripping Reliability
The Elliott Pos-E-Stop 203 Trip Block is a technological leap forward in the control of trip valves for steam turbines, hot gas expanders and similar power applications in emergency situations such as overspeed, high vibration or process upset. The Pos-E-Stop Trip Block's flexible "two-out-of-three" logic provides a significantly higher degree of tripping reliability than single or paired solenoid designs, and its best in class response time reduces the tripping interval for enhanced safety. And, the Pos-E-Stop Trip Block has the ability to interface with the master plant control or EDS system.
Features and Benefits
- Improved trip system reliability
- Best in class response time with reduced tripping interval
- Increased availability
- On-line test capability without defeating trip protection
- On-line replacement of critical components without defeating trip protection
- Continuous on-line monitoring of solenoids and valve positions
- Elimination of isolation valves reduces risk of operator error
- Enables trip system standardization across the plant
- Easy to install; simplifies most piping layouts
- Meets hazardous area classifications
- Meets applicable CE directives
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PKV-06 stainless steel pilot controlled non-return valve
Application
PKV-06 is used as a static load holder.
Specifications
The PKV-06 valve, made of stainless steel W.St.1.4301, allows unrestricted flow from V to C ports and blocks flows in the opposite direction until pressure is applied on the pilot port.
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TYPE GATE, GLOBE, CHECK
SIZE RANGE 1/2” TO 24”
BONNET TYPE BOLTED
MATERIAL CF8, CF3, CF8M, CF3M, CF8C, CF10, DUPLEX, INCONEL,
MONEL, HASTELLOY …etc
PRESSURE RANGE CL 150, 300, 600
ENDS BUTT WELD
FLANGE: ANSI, JIS, DIN
OPERATOR HANDWHEEL, CHAINWHEEL, BEVEL GEAR, PNEUMATIC,
HYDRALIC, MOTORIZE
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Liquids, steam and gases - SOMAS check valves are suitable for all of them. This valve is designed and made for clamping between flanges. SOMAS provide two types, with or without a spring, both made from stainless steel to meet the demands of our customers.
High capacity and short closing time are the check valves great advantages. The closing time is short due to the seat angle in the body, which makes the check valve especially well suited for liquids, steam and gases. Another advantage of the check valve is that it can easily be disassebled by the customer for cleaning or shaft replacement.
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With more than 15,000 cantilever stationary syphons sold, Kadant is the preferred supplier and global leader in stationary syphon technology. Stationary syphons are preferred for medium and high speed applications because stationary syphon differential pressure requirements do not increase with speed, as is the case with nearly all rotary syphons. This gives stationary syphons a great advantage in operating efficiency.
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TYPE THERMODYNAMIC, THERMOSTATIC, INVERTED BUCKET, FLOAT
SIZE RANGE 1/2” TO 6”
BONNET TYPE BOLTED, SCREWED, WELDED
MATERIAL A105, F11, F22, F5, F9, F304, F304L, F316, F316L, F44, F51, WCB,
WC6, WC9, C5, C12, CF8, CF3, CF8M, CF3M, DUPLEX…etc
PRESSURE RANGE CL 150 TO 2500
ENDS SCREW, SOCKET WELD, BUTT WELD
FLANGE: ANSI, JIS, DIN
OPERATOR SELF AUTOMATIC
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DESCRIPTION:
Inverted bucket steam trap with all stainless steel internals. Best suited for equipment drains with medium to heavy condensate loads. Intermittent operation.
FEATURES:
The inverted bucket arrangement operates on the density difference between steam and water, giving a cyclic operation for discharge of the accumulated condensate.
High condensate handling capacities even at low pressures, permit the use of small trap sizes to suit many applications.
The valve and valve seat are hardened by a special induction hardening process to withstand continuous, prolonged operation.
Perfect shut-off, no steam loss.
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PT32
Thermostatic Steam Trap for Clean Steam applications. Complete SS construction. End conns.: Triclamp end.
PT34
High Capacity Thermostatic Steam Trap for Clean Steam applications. Complete SS construction. End conns.: Triclamp end.
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DESCRIPTION :
Thermostatic steam trap with bimetallic column, inbuilt strainer and stainless steel internals. Best suited for steam tracers, header drip legs, heating
coils and various process & heating applications.
FEATURES :
Stainless steel protected bimetal resist corrosion.
Check valve acts as a back flow preventor.
Excellent resistance to water hammer.
Sub-cooling temperature is adjustable.
Tight shut off. No steam loss.
Long lasting. Modulating discharge. Excellent air venting capability.
Suitable for both saturated & superheated steam applications.
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DESCRIPTION:
The PT30 is a perfect NO-LOSS steam trap that offers condensate sub-cooling to maximise thermal efficiency.
Its special design facilitates fitment in any position. The highly responsive, corrosion and water-hammer resistant controller gives excellent deaeration and
drainage.
Maximum thermal efficiency is automatically maintained under varying conditions.
APPLICATIONS:
For drainage and deaeration of steam lines and all kinds of heat exchangers, (including those for superheated steam), auxiliary heating systems, sterilization systems, hot water heat exchangers, tracing and many other steam applications.
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DESCRIPTION:
Thermodynamic steam trap with inbuilt strainer in full stainless steel construction, best suited for header and main line drains and drip legs.
FEATURES:
Complete stainless steel construction ensures better mechanical and corrosion resistance properties. The disc and seat are hardened by a special induction
hardening process with seat harder than disc, to withstand continuous, prolonged operation. Condensate entry below the disc, concentric to the disc / seat ensures a clean and parallel lift of the disc with reference to the seat, eliminating localized wear and tear.
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- For large high capacity units
- Sizes available:
Series C:
11/4" NPT and BSPT
11/2" NPT and BSPT
2" NPT and BSPT
21/2" NPT
Series X:
2" NPT
- Resistant to water hammer and corrosion
- Below condensate level seat design prevents steam leakage
- Rugged stainless steel thermostatic element eliminates air binding
- Stainless steel internal components
- Can be serviced without dismantling piping
- Maximum operating pressure 175 psig (12.1 bar)
- Maximum temperature 377°F (192°Cl
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Thermodynamic Steam Traps
Recommended to remove condensate from general pipelines of steam distribution and tracing lines. They can also be used to remove humidity from compressed air lines.
They are manufactured with stainless steel for pressures up to 42 kgf/cm2 and chrome steel for pressures up to 62 kgf/cm2. In both cases, maximum temperature is 450oC.
They are manufactured in sizes from 3/8" to 1" with screwed connection BSP or NPT, for SW or BW welds and flanged connections #150, #300 and #600.
They can be supplied with filter and drain valve incorporated.
In case of installation under bad weather conditions, it is advisable to use an aluminum protection cover
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ARI-CONA B
Application: For the discharge of condensate sub-cooled between 10 and 30 K
Medium: Steam, condensate, etc.
eClass-No.: 37010708
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Removing condensate and air from your system is essential. Returning condensate to the boiler house maximises use of energy. We have the right steam trap for your application and the people to advise you.
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Automatic valves for the discharge of condensate without discharging steam.
Operating Pressure Range: Vacuum - 3700 psig
Operating Temperature Range: 32 - 1022 °F
A steam trap is a kind of automatic valve that discharges condensate generated during processes and in steam transport lines, without allowing the discharge of any steam. Steam trap operation principles can be roughly divided into three categories. TLV manufactures all three of these categories.
An extensive product line-up makes it possible to select the optimal product to suit the objective or application.
Each trap offers the highest level of energy conservation in its class.
Much consideration is given to the aspect of maintenance, as evidenced by designs that include the unitization of parts, interchangeable parts, and utilization of re-useable PTFE gaskets.
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Description:
The Becker Thermal Check Valve (TCV) is designed for use with regulated natural gas supply systems. The Thermal Check Valve offers simple and inexpensive insurance against fire in natural gas regulating stations, compressor stations, or other areas where regulated natural gas supply systems are present. The Valve stops the flow of combustible natural gas into potentially hazardous areas in the event of fire or excessive heat.
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Normally Open, Normally Closed, Air Pilot Actuated.
These valves open or close high pressure oil or plain water back to tank or to another line or high pressure
gas to another line. High pressure section alloys are stainless steel with stainless steel ball or poppet design.
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Valves, Clappers, Bursting discs
