pRESSURE rEDUCING vALVE 106/206-pr
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106 / 206-PR Pressure Reducing Valve
The 106-PR and 206-PR series pressure reducing valves are based on the 106-PG or 206-PG main valves.
The pilot valves sense the downstream pressure through a connection at the valve outlet. Under flowing conditions, the pilot reacts to small changes in pressure to control the valve position by modulating the pressure above the diaphragm. The downstream pressure is maintained virtually steady at the pilot set-point.
In typical pressure reducing applications, the reduced port model 206-PR is often the best selection.
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Ideal for maintaining accurate downstream pressure
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Responds quickly and effectively
pressure relief safety vALVE 106/206-rps
106 / 206-RPS Relief Pressure Relief Valve
The 106-RPS and 206-RPS pressure relief valves are based on the 106-PG and 206-PG main valves.
The 81-RP pilot senses the upstream pressure through a connection to the valve inlet. The valve and pilot remain closed until the inlet pressure exceeds the pilot setting. The valve opens rapidly to relieve damaging overpressure and closes smoothly at an adjustable speed, when the pressure returns below the set-point. The upstream pressure is limited to the pilot set-point.
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Limits system pressure by relieving excess flow
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Quick opening relief
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Easily adjustable pressure setting
SURGE ANTICIPATING CONTROL vALVE 106/206-RPS-L&H
106 / 206-RPS-L&H Surge Anticipating Relief Valve
The 106-RPS-L&H and 206-RPS-L&H anticipating surge relief valves are based on the 106-PG or 206-PG main valve.
The valve is mounted in a tee, downstream of the pump check valve(s). It is designed to anticipate surges to avoid the severe water hammer often associated with power failure surges.
The RPS-L&H pilot system is comprised of two pilots, the 81-RP and the 82-PR. Both pilots sense pressure through a connection to the header pipe. The 81-RP high pressure pilot opens the valve to relieve excess pressure. The model 82-PR low pressure pilot opens quickly on below normal pressures prior to the return of a surge wave, initiating the opening of the main valve in anticipation of the high pressure wave’s arrival.
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Protects against power failure surges or pressure waves caused by velocity changes
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Quick opening relief
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Easily adjustable pressure setting
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No electrical services required
ANTI-CAVITATION CONTROL vALVE 106-ac
106-AC Anti-Cavitation Control Valve
The 106-AC series control valve is designed to solve high pressure drop problems by allowing smooth control and protection from cavitation damage. It’s ideal for applications where large pressure differentials preclude the use of standard automatic control valves and varying flows make orifice plates ineffective.
The AC control valve contains two heavy stainless steel sliding cages that maximize the full flow capacity. The first cage directs and contains the cavitation recovery, allowing it to dissipate harmlessly. While the second cage allows further control to a level as low as atmospheric pressure downstream. The cages are engineered to meet the flow / pressure differential of each application.
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Solves high pressure drop problems
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Controls variable flows & vibration
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Significantly reduces noise
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Self-contained – actuators not required
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Customizable to meet your application needs
modulating Float vALVE 106/206-f-type 4
106 / 206-F-Type 4 Modulating Float Valve
The Singer model 106-F-Type 4 and 206-F-Type 4 modulating float valves are based on the 106-PG or 206-PG main valve.They are ideal for balancing the inflow and outflow demand into the reservoir and maintaining level at the designated maximum.
The valve closes drip-tight at the maximum level and modulates to maintain the tank level. The float pilot is remotely installed at the high level in the reservoir tank. Pilot connections to the main valve are connected in the field. As the reservoir level drops the main valve is opened proportionally to increase the filling rate. Movement of the main stem alters the size of the closing restriction, interrupting the tendency of the valve to hunt.
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Maintains relatively constant level
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Automatic compensation for level draw-down
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Standard integral damping reduces hunting
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Drip-tight at high level shut-off
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Low supply pressure options
non-modulating Float vALVE 106/206-f-type 5
106 / 206-F-Type 5 Non-Modulating Float Valve
The 106-F-Type 5 and 206-F-Type 5 non-modulating float valves are based on the 106-PG or 206-PG main valve. It is ideal for allowing normal forward flow to fill water reservoirs to a desired high level and where the pilot and valve of the reservoirs are easily accessible.
The valve functions as a two position valve, either open or closed. The valve remains closed when the reservoir level drops, until the float reaches the pre-determined adjustable minimum reservoir level. The F-Type 5 valve then opens to refill the reservoir and closes tightly when high water level is achieved.
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No overflow, drip-tight close
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Adjustable draw down
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Easily adjustable level settings
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Low supply pressure options
Solenoid control vALVE 106/206-sc
106 / 206-SC Solenoid Control Valve
Singer models 106-SC and 206-SC solenoid control valves are based on the Singer model 106-PG or 206-PG main valve.
The solenoid pilot valve provides on-off position operation. The solenoid either admits inlet pressure into the main valve operating chamber or releases pressure from the operating chamber. The pilot system is usually piped to discharge at the valve outlet, but can be piped to discharge to drain (atmosphere).
The SC valve is available either with the main valve closed when the solenoid is de-energized (NC -Normally Closed) or with the main valve open when the solenoid is de-energized (NO- Normally Open). (NC or NO refers to the main valve, not the solenoid.)
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Positive, drip-tight shut-off
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Simple, on-off operation
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Globe or angle style body
booster pump control vALVE
single chamber 106/206-pg-bpc
106/206-PG-BPC Booster Pump Contol Valve - Single Chamber
The 106-PG-BPC or 206-PG-BPC booster pump control valve is installed in-line directly downstream of the pump discharge.
The valve is normally closed, and, on pump start-up, a pilot solenoid is energized to slowly open the valve, at a rate governed by the opening speed control. The pipeline flow is gradually increased.
When shut-down is required, the pilot solenoid is de-energized to close the main valve and reduce the flow. The pump is kept running while the booster pump control valve slowly closes. When the valve is almost fully closed and flow is virtually stopped, a cam triggers the limit switch to stop the pump.
With the internal drop check option, the built-in mechanical drop check closes immediately when the flow stops, regardless of the valve position. Whether due to a control malfunction, normal operation or a pump motor power failure, by closing before flow reverses, surges are minimized.
The single chamber construction facilitates supplemental modulating functions such as pressure sustaining, pressure reducing, rate of flow control. Being a single chamber design, the control forces are generated by the differential across the valve. When a modulating function is included there are more positive initial closing results.
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Substantially reduces pump starting and stopping surges
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Separate opening and closing speed controls
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Cost effective pump control system
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Optional internal mechanical drop check reduces power failure surge
Pressure reducing 106/206 pr-48 ( low flow )
106/206-PR-48 | Pressure Reducing
106 / 206-PR-48 Pressure Reducing Valve with Low Flow By-Pass
The 106-PR-48 and 206-PR-48 series pressure reducing valves with low flow by-pass are based on the 106-PG or 206-PG main valve. In addition, a direct acting pressure reducing valve is piped in parallel, using the main valve back port connections.
The pilot valve senses the downstream pressure through a connection at the main valve outlet.
Under flowing conditions, the pilot reacts to small changes in pressure to control the main valve position by modulating the pressure above the diaphragm.
The downstream pressure is maintained relatively steady at the pilot set-point.
The by-pass valve is set 5 psi / 0.35 bar higher than the main valve. Under low flow conditions, the main PR valve closes and the by-pass stays open, controlling the pressure at very low flows without seat chatter.
In typical pressure reducing applications, the reduced port Model 206-PR-48 is often the best selection.