Main_Valves Archives | Page 4 of 7 | Trillium Flow Technologies™

Stareco (76E Series) Pilot Operated Pressure Relief Valve

November 4, 2019|

The Stareco Pilot Operated Pressure Relief Valve is designed to provide overpressure protection for the challenging Section I economizer application.

The Stareco Pilot Operated Pressure Relief Valve is designed to meet the rigorous process conditions which are mandated by boiler economizers. The pressure relief valves are designed to provide high integrity performance and repeatability in the power industry, particularly at high pressure and high temperatures. Their use of “Thermoglide” components eliminates any problems associated with seizing or galling of internal surfaces and guarantees excellent overpressure and blowdown characteristics.

Starsteam (V Series) Safety Valve

November 4, 2019|

The Starsteam Spring Loaded Safety Valve is designed to reliably meet the stringent requirments of ASME Boiler and Pressure Vessel Code Section I for Power applications.

The Starsteam Safety Valve is designed to meet the rigorous process conditions which are essential for steam boilers. This spring loaded safety valve is used in superheater and reheater applications and is specially engineered to provide fast response to overpressure and blowdown requirements. The Starsteam safety valves are designed to provide high integrity performance and repeatability particularly at high pressure and high temperatures in power plants as well as oil and gas boiler applications. This safety valve features a Stardisc design which guarantees perfect tightness at high temperatures as well as repeated and accurate positioning on the nozzle.

76 Series Pilot Operated Pressure Relief Valve

November 4, 2019|

The Sarasin-RSBD 76 SERIES FULL NOZZLE design has been developed for customer who want to protect vessel against overpressure in cryogenic condition or insure body chemical protection, keeping the highest tighness requirements.

The Sarasin-RSBD 76 SERIES design is based on API STD 526 spring-loaded body design (P SERIES) including limited acceptable back pressure value. Therefore, the center-to-face dimensions and inlet/outlet rating meet API STD 526 for spring-loaded valves. In the API STD 520 Part I, the selection of the nozzle type is only available for Spring-Loaded PRV, not Pilot Operated PRV which are designed with semi-nozzle as a standard design.

Uniflow Slide Valve

November 4, 2019|

Hopkinsons Uniflow Slide Valves are specially designed for one way isolation and blowdown duties where there is no possibility of reversal flow.

The Hopkinsons 'Uniflow' Slide Gate Valve has been used for many years on drain, blow-down and other auxiliary services, especially in medium and high pressure installations. It is manufactured in sizes up to and including 1 1/2" bore with flange or butt weld connections according to temperature and pressure requirements. As the name implies, the design is for one-way flow only and when there is any possibility of a reverse flow, it can be used in series with a non-return valve fitted at the outlet. The Hopkinsons 'uniflow' valve is an adoption of the parallel slide valve principle but using only one disc which slides over the face of the seat, to which it is firmly held by fluid pressure in normal working conditions and by a light spring when not under pressure. The valve is fully opened or closed by a half turn of the handle or hand-wheel. To prevent rotation beyond these limits, stops are incorporated in the index plate. This plate is large, clearly marked and easy to read and can be engraved to suit foreign language requirements. No lubrication is required with this type of valve. Maintenance and the fitting of replacement parts are easily carried out as the valve can be easily dismantled without the aid of special equipment. In addition, there are no welded joints to be broken in order to gain access to the internals.

Globe Valves

November 4, 2019|

Hopkinsons offer a robust general purpose range of globe valves suitable for regulating, isolating and blowdown duties.

The replaceable seat is screwed into the body, the joint being made by accurately machined taper surfaces. An extension on the underside of the valve acts as a throttling device to protect the seating faces against the scoring or cutting action of steam during opening and closing.

High Performance Drain

November 4, 2019|

For extreme service conditions such as on superheated steam drain lines, Hopkinsons have developed a new range of high performance parallel slide gate valves.

Hopkinsons® High Performance Drains are designed to give extended service life and continued tight shut off when subject to frequent operation, two phase flow, thermal shock and large pressure drops. Unique features of the valves include square discs (gates) and 'winged' seats. These provide accurate gate guidance, low seat contact stresses and enhanced wear resistance for repeatedly handling large pressure drops in the part open position.

Full Bore & Venturi Parallel Slide Gate

November 4, 2019|

We recommend Hopkinsons Full Bore & Venturi valves when a gate valve is required for steam or feedwater duty in medium and high pressure ranges.

Full Bore: The outstanding feature of the parallel slide design is that of maintaining fluid-tightness without the aid of wedging action. No mechanical stress is exerted between the discs, and there are no problems associated with cool-down of the fluid.

BV994 & BV995 Turbine Bypass Valves

November 4, 2019|

The BV994/995 is an innovative product designed for power customers to combine steam pressure reducing and desuperheating stations.

The Trillium BV994/BV995 Turbine Bypass Valve is a highly sophisticated engineered control device. Conceptually, it is required to accurately control multiple operational variables, provide system protection to both upstream and downstream plant components, and sometimes perform these tasks all in a fraction of a second. Depending on the overall system size, bypass mode of operation and customer preference, there is almost an endless selection of options and configurations that can be applied to the BV995 bypass valve construction. The Weir BV995 Turbine Bypass Valve design can be varied to accommodate the particular plant design, size, and application. It is available in a range of options and configurations to assure optimum performance regardless of the mode of operation. The high pressure (HP) bypass valves are subject to some of the highest pressures and temperatures. They may be utilized in either a Parallel or Cascading Bypass System.

BV986 Desuperheater

November 4, 2019|

The BV986 desuperheater is designed as a compact solution suitable for steam conditioning applications for pipe sizes up to 6".

This BV986 unit offers a relatively simple and inexpensive solution for applications which have low rangeability and stable steam demand. The unit is a simplified spray nozzle where the spray water is circulated around an internal gallery and then injected into the steam through a series of radial holes. The BV986 unit also fits between conventional flanges and is therefore easy to remove for service and maintenance purposes. The unit is connected to a stand-alone spray water valve which controls the amount of water being injected into the vapour. The BV986 can also be directly mounted onto the outlet of a pressure control valve so that water is injected into the turbulent vapour flow at the outlet of the valve. The BV986 desuperheater is used on pipe sizes from 25mm (1"") and above.

BV985 Desuperheater

November 4, 2019|

Our multi-nozzle desuperheater design is proven in thousands of installations. The BV985 offers increased CV ratings and improved rangeability with options of modified characteristics.

The BV985 spray nozzle is used on applications where high rangeability is required with direct control across the spray nozzle. The BV985 is designed so that steam is injected into the centre of the pipe resulting in minimum droplet contact against the pipe walls. Water is injected across a series of 12 variable area nozzles which atomises the water into micro fine droplets resulting in faster absorption rates and shorter outlet steam pipe lengths. The amount of water injected into the pipe is directly controlled by the valve plug which is in turn controlled by the actuator. Where the pressure differential between the cooling medium and the vapour exceeds 60 bar, a two stage nozzle is available that extends the available pressure drop range to 100 bar. The two stage nozzle ensures erosion across the valve plug is minimised.

BV830 & BV831 Three Way Valves

November 4, 2019|

The Blakeborough BV830/831 series are popular top and skirt guided control valves available to customers in a variety of trims, capacities, and options.

The BV830 and BV831 valves are designed for either blending two different flows or for dividing a flow into two proportional streams. The valves can be used on a wide variety of process applications, including air, water, steam, oil, gases and chemical services. The BV830 has two inlets and a common outlet branch. It is used for proportional blending of two flows into one stream, on such applications as the control of process fluid temperature downstream of feedwater heaters. The valve can also be used as a mixing valve to control the blending of two flow streams. The flow capacity is normally constant unless the valve trim is specifically designed with two different CVs. The BV831 valves are used for proportional control on flow splitting applications. The valve has two outlets and a common inlet branch.

BV990 & BV992 Cage Trim Valves Class 900lb and above

November 4, 2019|

Suitable to general, medium and severe service applications for low-medium pressure rating, cage guided, quick change trim, available in all configurations.

Cage guided design that can accommodate several options of trims with increasing performance in controlling noise, erosion and vibration Trims are interchangeable within the same pressure boundary design allowing ease of upgrade. No trim components is welded or screwed in the body ensuring simple, low cost, in line maintenance. Additional features available are: soft seating for class VI shut off, downstream silencer for noise reduction, seat diffuser for body protection, balanced pilot for high tight shut off performance, live loaded packing for prolonged high emission protection, extended bonnet for cryogenic and high temperature applications.

The Stareco Pilot Operated Pressure Relief Valve is designed to provide overpressure protection for the challenging Section I economizer application.

The Starsteam Spring Loaded Safety Valve is designed to reliably meet the stringent requirments of ASME Boiler and Pressure Vessel Code Section I for Power applications.

The Sarasin-RSBD 76 SERIES FULL NOZZLE design has been developed for customer who want to protect vessel against overpressure in cryogenic condition or insure body chemical protection, keeping the highest tighness requirements.

Hopkinsons Uniflow Slide Valves are specially designed for one way isolation and blowdown duties where there is no possibility of reversal flow.

Hopkinsons offer a robust general purpose range of globe valves suitable for regulating, isolating and blowdown duties.

For extreme service conditions such as on superheated steam drain lines, Hopkinsons have developed a new range of high performance parallel slide gate valves.

We recommend Hopkinsons Full Bore & Venturi valves when a gate valve is required for steam or feedwater duty in medium and high pressure ranges.

The BV994/995 is an innovative product designed for power customers to combine steam pressure reducing and desuperheating stations.

The BV986 desuperheater is designed as a compact solution suitable for steam conditioning applications for pipe sizes up to 6".

Our multi-nozzle desuperheater design is proven in thousands of installations. The BV985 offers increased CV ratings and improved rangeability with options of modified characteristics.

The Blakeborough BV830/831 series are popular top and skirt guided control valves available to customers in a variety of trims, capacities, and options.

Suitable to general, medium and severe service applications for low-medium pressure rating, cage guided, quick change trim, available in all configurations.

GET INDUSTRY UPDATES