OpenBuildings™ Station Designer Help

Plumbing Valve types

The Valves group comprises various plumbing valves used in regulating flow in plumbing system.

Key In Syntax

Follows the Placement Key In syntax.
BMECH PLACE COMPONENTBYNAME <schema name> <item name> dsc=Plumbing

Types of Valves

The below list of fittings illustrates the tool icon along with the <schema name> <item name> used in above key in syntax, and the description of the fitting.

Valves
RadiatorAngledValve Angled Radiator Angled Valve — Used with a steam radiator in a heating application. Angled radiator valves used to turn on/off steam to a radiator to the central heating system. Unlike Straight radiator valves, the Angled radiator valves incorporate a 90° bend to achieve an 'up or down and across' flow, instead of passing the central heating water along a 'straight' path from pipework into the radiator. Angled radiator valve with side inlets is ideal configuration for flow through wall pipework as well as through floor pipework
BMP_ValveAirVent "Air Vent" Air Vent — Air Release Valve automatically exhausts small amounts of trapped air pockets which might have collected at system high points, while the system is flowing and under pressure.
BMP_ValveDiffPressureRegulating "DifferentialPressureControl" Differential Pressure Control Valve — DPCV is extremely efficient, works with variable speed pumps. It is set to a maximum differential pressure which ensures flow cannot exceed a desired rate. It therefore helps reduce energy consumption, the risk of noise and simplifies the commissioning process.
BMP_ValveDiffPressureTransmitter "default" Differential Pressure Transmitter — Scalable Multi Variable Transmitter delivers unprecedented performance and capabilities by providing superior flow calculations including fully compensated mass or volume, energy, and totalized flow. Utilizes full compensation in gas, natural gas, and steam measurement using the differential pressure measurement)
BMP_BalanceValve "default" Balance Valve — Balances and control water systems in commercial buildings, connecting the same or disparate pipe materials for water distribution.
BMP_DoubleRegulatingValve "default" Double Regulating Valve — The valve with Double Regulating Gearbox feature allows the valve to be used for isolation and to be reopened to its preset position to maintain required flow rate. Usually equipped with a fully-lugged butterfly valve for use with flanges and a high temperature liner for applications in high temperature.
BMP_ValveAngled Angled Angled Valve — A manually operated valve with its outlet opening oriented at right angles to its inlet opening; designed for throttling or regulating flow of a fluid in a pipe. A valve for controlling the flow of a liquid or air; the fluid leaves at right angles to the direction in which it enters the valve.

In the case of angle valves, the outlet pipe is directed towards the bottom. This allows the fluid to drain off.

BMP_ValveAngledRelief "Angled Relief" Angled Relief Valve — The relief valve (RV) is a type of valve used to control or limit the pressure in a system or vessel which can build up by a process upset, instrument or equipment failure, or fire.
BMP_ValveBall "Ball Valve" Ball Valve — The valve is a form of quarter-turn that uses a hollow, perforated and pivoting ball, seal against the seat to control flow through it. It is open when the ball's hole is in line with the flow and closed when it is pivoted 90° by the valve handle.
BMP_ValveButterfly "Butterfly Valve" Butterfly Valve — A butterfly valve is used for isolating or regulating flow. The closing mechanism takes the form of a disk. The disc is positioned in the center of the pipe, passing through the disc is a rod connected to an actuator on the outside of the valve. Rotating the actuator turns the disc either parallel or perpendicular to the flow. Unlike a ball valve, the disc is always present within the flow, therefore a pressure drop is always induced in the flow, regardless of valve position.
BMP_ValveFour Way "FourWay Valve" Four Way Valve — The four-way fluid control valve whose body has four ports equally spaced round the valve chamber and the plug has two passages to connect adjacent ports. The plug may be cylindrical or tapered, or a ball.
BMP_ValveGate "Gate Valve" Gate Valve — The gate valve, opens by lifting a round or rectangular gate/wedge out of the path of the fluid. The distinct feature of a gate valve is the sealing surfaces between the gate and seats are planar, so gate valves are often used when a straight-line flow of fluid and minimum restriction is desired. The gate faces can form a wedge shape or they can be parallel.
BMP_ValveMotorised_2Way "default" Motorized Valve - 2 Way — Hysteresis synchronous motor controlled 2-way valve is used for FCU (fan coil unit) and various heating/cooling applications.
BMP_ValveMotorised_3Way "default" Motorized Valve - 3 Way — Three way motorized control valve has an opening at the top for performing easy trim inspection without disturbing insulation or pipe connections. Actuator mounts directly onto valve without linkage.
BMP_ValveMotorised_3Way_withBypass "default" Motorized Valve - 3 Way with Bypass — The motorized three-way bypass valves permits a system to operate with a continuous flow regardless if the zone valve is in the open or in the bypass position.
BMP_ValveMotorizedButterfly "default" Motorized Butterfly Valve — Actuated Wafer Type Butterfly Valve equipped with standard On-Off or modulating control quarter-turn electric actuator, is suitable for heating and cooling applications. Motor operated butterfly valve with trigger lever suitably used with flanges. It can also provide feedback output signal.
BMP_ValveMotorizedControl "default" Motorized Control Valve — Motorized control valves used to regulate the flow of fluids Precise regulation of flow rate through the valve is determined by the angular resolution of the motor and controlled with electrical actuator mounted on the valve.
BMP_ValveNonReturn "default" Non Return Valve — Flanged valve, NRV acts as an anti flooding device for use in horizontal pipes. Normally allows fluid (liquid or gas) to flow through it in only one direction, and prevents the reverse flow of fluid in case of failure or sudden shutdown of piping system.
BMP_ValveNRV "Check Valve" Check Valve — Check valves are two-port valves that normally allows fluid (liquid or gas) to flow through it in only one direction.

An important concept in check valves is the cracking pressure which is the minimum upstream pressure at which the valve will operate.

BMP_ValvePilotRelief "Pilot Relief" Pilot Operated Relief Valve — The pilot operated relief valves (PORV) are used for emergency relief during overpressure events (e.g., a tank gets too hot and the expanding fluid increases the pressure to dangerous levels). In PORV the pilot valves (or control pilot) use system pressure to seal the valve, whereas the PRV typically uses a spring to hold the disc or piston on seat.
BMP_ValvePressureDifferential "default" Pressure Differential Valve — A Direct acting pressure reducing valve that works based on the difference between two levels of pressure. During operation, valves often experience different pressure levels downstream and upstream.
BMP_ValvePressureRegulating "PressureRegulating" Pressure Regulating Valve — Pressure Reducing Valve is a hydraulically operated, diaphragm actuated control valve that reduces higher upstream pressure to lower constant downstream pressure regardless of fluctuating demand or varying upstream pressure. Pressure regulator valve automatically cuts off the flow of a liquid or gas at a certain pressure.

Can be set to direct acting with screw or cap and pilot operated.

BMP_ValveStraight "Generic Straight" Generic Straight Valve — Straight valves are designed so that the outlet pipe is in line with the inlet pipe and the fluid has a good chance of staying there in the case of horizontal piping.
BMP_ValveStraightRelief "Straight Relief" Straight Relief Valve — For use as back pressure valve, straight relief, by-pass relief or back pressure regulator.
BMP_ValveSwingCheck "default" Swing Check Valve — Swing type check valve permits flow in one direction only, and close automatically if flow reverses. It is entirely automatic in action, depending upon pressure and velocity of flow within the line to perform its functions of opening and closing.
BMP_ValveThreeWay "ThreeWay Valve" Three Way Valve — A 3-way valve has 3 ports; it connects one port to either of the two other ports (typically a supply port and an exhaust port).