Braeco Sales

Model 4303/4304 Bronze Pressure Reducing Valve W.O.G

Standard Features & Options:

Trident model 4303-heavy duty, high capacity, self acting bronze pressure reducing valve with a soft seat, making it suitable for standard pressure reduction as well as dead-end service. It is only available in three sizes, ½”, ¾” or 1”. It features an integral non-return valve to meet water supply regulations.
Model 4304 is the same valve but the brass seat is upgraded to stainless steel (for harsh water environment).
Maximum inlet pressure – 2,700 kpa (390psi)
Maximum temp- 90°C
Reduced pressure ranges available:
4303-15 (1/2”) 50-175 kpa, 175 kpa-350 kpa, 350-700 kpa
4304-20 (3/4”) 50-275 kpa, 240-700 kpa
4304-25 (1”) 50-275 kpa, 240-700 kpa

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Model 4360 Pressure Reducing Valve (DI/BZ/316SS)

Standard Features & Options:

Treloar/Jordan 4360 is the Australian made version of the US manufactured Mk60 and is available in sizes 1/2"-2" (Cv's 0.84-50). It is a robust, versatile, self acting valve that has sliding gate, long life Jorcote seats, rather than conventional piston or plug and seat. It is suitable to use with water, oil, gas, chemicals and steam. There are many variations to the basic model such as 4361 (high sensitivity, low droop), 43601 (high flow version) and 4360HP (high pressure version). In Bronze or DI version, valves have screwed ends BSPT, 316ss (fabricated/machined body) valves can be threaded, socket weld, butt-weld or flanged to Ansi 150/300 or AS Tables D/E. In all body materials, where a valve is smaller than the pipe size, valves can be flanged up to match the actual pipe size.
Maximum inlet pressure- BZ (2100 kpa) / DI (3,100 kpa)/ 316SS (4,500 kpa)
Maximum temp- BZ/DI (260°C)/ 316SS (343°C)

Reduced pressure ranges: 4360 (many ranges between 14 kpa-1,120 kpa)
                                      4361 (many ranges between 7 kpa-1,260 kpa)
                                      4360HP(ranges between 525 kpa-3,150 kpa)

Options: In US made MK60, sizes from 1/4"-4" (Cv's 0.08-200), low flow trim in all sizes, special coated seats, Jorlon long life diaphragm, cryogenic extension, Oxygen cleaned, salt water trim, Companion flanges for Bronze & DI valves, flanges welded to body for 316ss,

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Mark 67 Pilot Operated Pressure Reducing Valve (CI/DI/WCB/316SS)

Standard Features & Options:

Jordan MK67 series is a pilot operated pressure reducing valve and provides greater accuracy and lower offset than can be achieved with self acting valves. It is available in sizes 1/2"-6" (Cv's 5.0-395) and consists of a main valve with a small, pilot valve. The Mk67 combines the short stroke of the sliding gate with the action of a pilot valve to create a faster, more accurate response (less droop as flows increase). Can be used where greater accuracy is required than self acting valves or where control systems are not an option.
Suitable for steam, water, oil, gas and chemicals. Available with NPT threaded ends (1/2”→2”)  or Ansi 150/300 flanges (1/2”→6”)
Several adjustable pressure ranges from 70-100 kpa→1,030-1380 kpa)

Options: 69D, 69H or 69L Pilot valves, differential pressure pilot, low pressure pilot, BSP ends

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JR-Series -HP Instrument Style Pressure Regulator

Standard Features & Options:

Jordan JR-series line of instrument style regulators have the ability to handle very high pressures (3,600psi), large differential pressures and very low flows (Cv’s 0.012-0.8). These valves are typically used in research and sampling systems for corrosive gases and liquids. Typical applications would be gas and liquid chromatography and flame ionization detectors as well as other high pressure industrial applications. Standard body material is 316L with exotics like Hastelloy or Monel as options. Seats options are PTFE or PEEK. The JR-series can handle inlet pressures up to 3,600 psi (248 bar) and have a number of reduced pressure ranges:

JR reduced pressure ranges: 5-50 psi, 25-100 psi, 50-150 psi, 25-250 psi, 100-475 psi, 200-750 psi
JR Sizes: ¼” (DN8); 3/8” (DN10); 1/2” (DN15); Cv's 0.012; 0.08; 0.20         

JRH reduced pressure ranges: 2-10psi, 5-20psi, 15-100psi, 50-175psi, 75-450 psi

JRH Sizes: 3/8” (DN10); 1/2” (DN15); Cv 0.8         

download jr

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Mark 57 Pilot Operated Pressure Sustaining Valve (CI/DI/WCB/316SS)

Standard Features & Options:

Jordan MK57 series is a pilot operated pressure sustaining valve and provides greater accuracy and lower offset than can be achieved with self acting valves. It is available in sizes ½”-6” (Cv’s 5.0-395) and consists of a main valve with a small, pilot valve. The Mk57 combines the short stroke of the sliding gate with the action of a pilot valve to create a faster, more accurate response (less droop as flows increase). Can be used where greater accuracy is required than self acting valves or where control systems are not an option.
Suitable for steam, water, oil, gas and chemicals. Available with NPT threaded ends (1/2”→2”) or Ansi 150/300 flanges (1/2”→6”)
Several adjustable pressure ranges from 70-210 kpa→552-1280 kpa)

Options: BSP ends, on threaded valves

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JB-Series -HP Instrument Style Back Pressure Regulator

Standard Features & Options:

Jordan JB is an instrument style back pressure regulator, made from barstock and has the ability to handle high pressures (max inlet 3,000 psi, max set pressure 750psi), large differential pressures and very low flows (Cv’s 0.15-0.35). Standard body material is 316L with exotics like Hastelloy or Monel as options. Seat options are PTFE or PEEK and there are a number of set pressure ranges between 5-50 psi→200-750 psi.
Sizes:  ¼” (DN8); 3/8” (DN10) 1/2" (DN15)

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Model 4370 Pneumatic Control Valve (BZ/DI/WCB/316SS)

Standard Features & Options:

Model 4370 is the Australian made version of US manufactured Mk70, diaphragm operated Control Valve. The valve is metal/metal seated (Ansi class IV) and utilises the same sliding gate seats found in Jordan’s range of Pressure Regulators (4350/4360) and Temperature Control Valves (4380). It is available in sizes ½”→ 2” (Cv 2.5 to 30). The standard valve has threaded (bspt) ends but can be flanged on request. The valve is actioned by a multi-spring pneumatic actuator and can be used for on/off or modulating for liquids, gases, chemicals and steam. Flow is controlled by the movement of the gate/disc which moves in response to a 3-15 psi pneumatic signal received from a controller. Where the signal is in milliamps, an I/P transducer can be fitted (i.e. converts a 4-20mA signal to 3-15 psi) or, for even more precise control, the pneumatic actuator can be fitted with a pneumatic or I/P positioner.
Maximum inlet pressure- BZ (2100kpa) / DI (3,100kpa) / 316SS (4,500kpa)
Maximum temp- BZ/DI (260°C)/ 316SS (343°C)
Max pressure differential: 125-250 psi (without positioner), 125-550 psi with positioner

Options: 43701 Cv 50 High Flow version, equal % seats, low flow seats for all sizes, side or top mounted positioner, flanges to AS or Ansi. Many more options, higher pressure/temps  etc for US made Mk70 (see download), flanged MK711 

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MK708 / MK8000 Low Flow Pneumatic Control Valve (WCB/316SS/Monel/Alloy 20)

Standard Features & Options:

Jordan MK708 and MK8000 are globe style, low flow, pneumatic control valves, either cast or machined from barstock. They are operated by a multi-spring pneumatic actuator. Top or side mounted positioners are fitted where greater accuracy is required or where high pressure differentials occur. Many combinations of body/trim material available, hard or soft seat (for MK708 when zero seat leakage required)
Mk 708 - ¼”→ ¾” (Cv’s 00001 to 4.0), class IV or VI shut-off, max WP & DP 5,000 psi
Mk 8000 - ½”→ 2” (Cv’s 0.05 to 16.0) class III or IV shut-off, WP to 6,000 psi (414 Bar), Max differential Pressure to 5,000 psi

Options: Mk8000 is avail in almost any exotic material, including PVC and Kynar, also 3-way version

download mk708 & mk8000

MK75 Wafer Body Pneumatic Control Valve (CS/316SS)

Standard Features & Options:

MK75 is a wafer body pneumatic control valve, featuring sliding gate design in a lightweight, compact body, dramatically reducing the size and weight of conventional control valves.
Sizes - 1” → 6” (Cv’s 9.5 to 400), Class 150/300
Size- 8” (Cv 400), Class 150

Maximum differential pressures vary, depending on valve size, actuator selected (35M/55M/85M) and whether with or without positioner (see download sheet)

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Model 4380 Temperature Control Valve (BZ/DI/WCB/316SS)

Standard Features & Options:

Model 4380 is the Australian made version of US manufactured Mk80, self acting Temperature Control Valve. It requires no external power source or expensive instrumentation. The valve is metal/metal seated (Ansi class IV) and utilises the same sliding gate seats found in Jordan’s range of Pressure Regulators (4350/4360) and Diaphragm Operated Control Valves (4370). It is available in sizes ½”→ 2” (Cv 2.5 to 30) and is commonly used to accurately regulate the temperature of a tank’s contents (either by heating or cooling). The standard valve has threaded (bspt) ends but can be flanged on request.
The valve is actioned by a SWA thermal system, which is made up of a welded 304ss actuator, opposing spring, capillary and temperature sensing bulb. The bulb is normally installed inside a thermowell  (bulb pocket) and a heating transfer liquid, inside the thermowell, ensures accurate sensing of the process temperature. In the case of heating, the valve may be supplying steam into a heat exchanger and the bulb is positioned so that it senses the temperature on the heat exchanger’s outlet. The valve would remain open until the desirable temperature is reached and modulates to maintain this preset temperature.
Maximum inlet pressure- BZ (2100kpa) / DI (3,100kpa) / 316SS (4,500kpa)
Maximum valve temp- BZ/DI (260°C)/ 316SS (343°C)
Temperature set ranges: refer data sheet for ranges & spans (lowest range is -29°C→-7°C, highest is 193°C→232°C (range depends on the type of thermal fill)
Max pressure differential: 175-300 psi

Options: Stainless steel capillary, low temp shut off valve 4380U, Cv 50 High Flow 43801, low flow seats for all sizes, special allow seats, coated bulbs, set point indicators, flanges to AS or Ansi. Many more options, higher pressure/temps etc for US made Mk80 (see download)

download mk80

8051 Manual Regulating Valve (316ss, Wafer)

Standard Features & Options:

Although not utilizing a globe style body, Schubert & Salzer model 8051 works as a precise manual regulating valve. It utilizes the same body/trim as the GS series modulating control valve. Due to the flangeless, wafer style body, weight (& cost) is kept to a minimum, it has high Kv values and handles high differential pressures-rated PN 10-PN 40.
Valve Body - Stainless steel (1.4571)
Fixed disc - Stainless steel (1.4571)
Sliding Disc - Metallically impregnated carbon material
Actuating stem - Stainless steel (1.4571)
Handwheel - Aluminium

Sizes: ½”→ 6” (DN15→DN150) model 8050 long body pattern
           ½”→ 5” (DN15→DN150) model 8051 short body pattern

Options: WCB body, reduced Kv trim, equal% seats

download 8051 S & S

Selection: RELIEF or SUSTAINING?

Standard Features & Options:

 Pressure Relief Valve (pictured left)

Is designed for relief of excess pressure, usually 10-15% above the system operating pressure. Its main purpose is to protect the pressure vessel, pump, pipes, valves and other equipment from damage by excess pressure. Once the set pressure is reached, the valve opens to evacuate the media and will reseat again once the pressure has been relieved. It is recommended that the valve is inspected after each blow-off to ensure correct re-seating and operation. In many designs, the discharge port is at right angles to the inlet and is often larger than the inlet size, thus assisting rapid discharge of the product.

If there is a need for frequent operation, this is not the correct valve to use and a back pressure valve (as pictured below) is the better selection.

 Safety Valves used on compressible media (steam, air etc) often have a specially designed disc profile to assist in rapid valve lift and less overpressure. They usually have a lifting lever to manually lift the disc, thus confirming operation and to assist clearing debris or scale from the seat and disc.

Correct sizing is essential for proper operation.

 Pressure Sustaining (or Back Pressure) Valve (Jordan Mk50 pictured above)

Can be used in several ways and is commonly used to maintain the upstream pressure in a ring main or piping system. In a typical installation, it is installed in a "tee" off the main line where it remains closed until the set pressure is reached. Although it opens at a predetermined setting like the relief valve, it does not necessarily discharge at full capacity. Rather, it only opens far enough to relieve the excess pressure and can modulate and operate 24 hours a day, if necessary. They are commonly found on boiler feedwater lines where they allow the pumps to keep pumping and bypassing back to the tank when the boiler is full. This saves wear & tear on the pump and guarantees that the boiler will not be starved on water when it needs to be replenished. Another application could be to guarantee the pressure in an essential service (eg eyewash, deluge shower or even regions in the case of urban water supply applications) by ensuring that other ancillary lines are only pressurised when there is ample excess pressure above the minimum required by the priority line.

Correct sizing is essential for proper operation.