WATER WORKS

Model 39

Non-Modulating Float Pilot with Vertical Rod

The 39 non-modulating float pilot is designed to operate an On-Off float valve. The differential between the level where the valve opens and the level where the valve closes, is adjustable. The standard configuration is for the pilot valve to close on high level and open at a low level.

The 39 pilot is used as the standard pilot on all non-modulating F-Type 5, 106 and 206 series float valves.

  • The pilot shall be a Singer model 39.
  • The pilot shall be non-modulating and made of brass and stainless steel construction.
  • The pilot shall include a 4 ft / 1.2 m brass float rod with adjustable stops and a copper float. (alternate lengths of float rod are available)
  • The pilot will close the main valve on rising water level.
  • Maximum working temperature: 180° F / 82° C
  • Maximum working pressure: 80 psi / 5.5 bar

Model 35

Modulating Float Pilot

Model 35 is a Stainless Steel modulating float pilot with a Stainless Steel fl oat, suitable for remote installation on a tank or reservoir. It positions the main valve in proportion to the Reservoir level. Standard configuration is for the pilot to close on rising level.

Specify Reverse Acting for the pilot to open on rising level.

The Stainless Steel float connects to the pilot using a 10 in / 250 mm Stainless Steel rod.

  • The pilot shall be a Singer Model 35.
  • The pilot shall be of the modulating style and of Stainless Steel construction.
  • The pilot will close the valve on rising water level and will modulate the main valve in proportion to the reservoir level.
  • Maximum Working Temperature: 120° F / 50° C
  • Maximum Working Pressure: 80 psi / 5.5 bar

Model 34

Modulating Float Pilot with Vertical Rod

The 34 modulating float pilot is comprised of a copper float and brass rod assembly which moves vertically. As the level rises, the float lifts and the valve closes. The 34 pilot is optional pilot, available for modulating applications where the float and rod are installed in a still well and / or vertical action is preferred.

  • The pilot shall be a Singer model 34.
  • The pilot shall be of the modulating style and made of bronze and brass construction.
  • The pilot shall include a 4 ft / 1.2 m brass float rod and a copper float. The brass float rod shall have a vertical stoke controlled by a lever arm and counter weight.
  • The pilot will close the valve on rising water level however the pilot will modulate between open and closed in direct proportion to reservoir level.
  • Maximum working temperature: 120° F / 49° C
  • Maximum working pressure: 80 psi / 5.5 bar

R-400

Modulating Float Pilot

The R-400 is a modulating float pilot with a plastic float, suitable for remote installation on a tank or reservoir. It positions the main valve in proportion to the reservoir level. Standard configuration is for the pilot to close on rising level. Specify “Reverse Acting” for the pilot to open on rising level. The polypropylene float connects to the pilot on a 10 in / 250 mm brass rod.

The R-400 pilot is used as the standard float pilot on all 106 and 206 series modulating float valves.

  • The pilot shall be a Singer Model R-400.
  • The pilot shall be of the modulating style and made of brass and bronze construction.
  • The inner valve shall utilize Buna-N seals to provide drip-tight shut-off in the valve body.
  • The pilot shall include a 10 in / 250 mm brass float rod and a polypropylene float. The brass float rod shall pivot from the lever located on pilot.
  • The pilot shall be self-cleaning and self-flushing by locating the outlet in the bottom of the pilot ninety degrees to the inlet.
  • The pilot will close the valve on rising water level however the pilot will modulate between open and closed in direct proportion to reservoir level.
  • Maximum working temperature: 120° F / 49° C
  • Maximum working pressure: 80 psi / 5.5 bar

81-RPD

Differential Pressure Relief Pilot

The 81-RPD is a remote sensing, high capacity, spring and diaphragm operated, normally closed, differential pilot. The inner valve is held closed by the spring. When the pressure under the diaphragm overcomes the combined forces of the spring setting and the pressure above the diaphragm, the pilot opens. The 81-RPD valve is used for remote sensing of a differential pressure for normally closed applications.

  • The pilot shall be Singer Model 81-RPD, with the spring range specified.
  • The normally closed pilot shall be of brass and bronze construction with a spring to adjust the opening pressure differential.
  • The pilot and inner valve shall be of stainless steel 316 construction and the inner valve shall have EPDM resilient compound for seating. The EPDM compound must be permanently bonded to the inner valve and be ground flat and square to assure maximum performance.
  • The pilot shall be self-cleaning by locating the inlet directly into the seat area through the bottom of the pilot and the outlet ninety degrees to the inlet.
  • Two separate ports (one above and one below the diaphragm), will sense a pressure differential allowing pilot and therefore the main valve to modulate subject to pressure differential, maintaining a relatively steady set-point.
  • Maximum working temperature: 180° F / 82° C • Maximum working pressure: 400 psi / 27.6 bar

83-RP

High Pressure Relief Pilot

The 83-RP is a spring and diaphragm operated, normally closed pilot specifically designed for high pressure applications. The inner valve is held closed by the spring. When the control sensed pressure below the diaphragm exceeds the force of the spring, the pilot valve opens.

Model 83-RP pilot is used as the standard pressure relief pilot where the operating pressures are excessive, such as a 300 psi / 20.7 bar level.

  • The pilot shall be Singer Model 83-RP, with the spring range specified.
  • The normally closed pilot shall be of brass and bronze construction with a spring to adjust the opening pressure.
  • The pilot and inner valve shall be of stainless steel 316 construction and the inner valve shall have EPDM resilient compound for seating. The EPDM compound must be bonded permanently to the inner valve and be ground flat and square to assure maximum performance.
  • The pilot shall be self-cleaning by locating the inlet directly into the seat area through the bottom of the pilot and the outlet ninety degrees to the inlet.
  • A separate port will sense pressure either upstream or downstream (subject to application) to open the pilot and therefore the main valve when system pressure exceeds the pilot set-point.
  • Maximum working temperature: 180° F / 82° C
  • Maximum working pressure: 600 psi / 41.4 bar

81-RP

Pressure Relief Pilot

The 81-RP is a remote sensing, high capacity, spring and diaphragm operated, normally closed pilot. The inner valve is held closed by the spring. When the sensed pressure increases above the spring setting, the pilot opens. Model 81-RP pilot is used as the standard pressure relief/sustaining pilot on all 106 and 206 series valves.

  • The pilot shall be Singer Model 81-RP, with the spring range specified.
  • The normally closed pilot shall be of brass and bronze construction with a spring to adjust the opening pressure.
  • The inner valve shall be of stainless steel 316 construction and the inner valve shall have EPDM resilient compound for seating. The EPDM compound must be bonded permanently to the inner valve and be ground flat and square to assure maximum performance.
  • The pilot shall be self-cleaning by locating the inlet directly into the seat area through the bottom of the pilot and the outlet ninety degrees to the inlet.
  • A separate port will sense pressure either upstream or downstream (subject to application) to open the pilot and therefore the main valve when system pressure exceeds the pilot set-point.
  • Maximum working temperature: 180° F / 82° C
  • Maximum working pressure: 400 psi / 27.6 bar

160-RF

Rate of Flow Pilot

The 160-RF pilot is a spring and diaphragm operated pilot designed to sense a differential across an external orifice plate. It is a normally open pilot that also has a sensing port is in the spring casing, above the diaphragm and is available in stainless steel. The inner valve is held open by the spring and when the control pressure below the diaphragm exceeds the combined forces of the spring and the sensing pressure, the pilot valve closes. The 160-RF is the standard rate of flow control pilot on all 106 and 206 series valves.

  • The normally open pilot shall be of bronze construction with a spring to adjust the pressure setting and as a result, flow rate.
  • The pilot seat, stem, yoke and inner valve shall be of stainless steel 316 construction and the inner valve shall have EPDM resilient compound for seating. The EPDM compound must adhere safely to the inner valve and be ground flat and square to assure maximum performance.
  • The pilot stem shall be guided by a Delrin bushing in the spring casing above the diaphragm and totally remove from the flow of water in the main pilot chamber. The pilot guide and stem location above the diaphragm shall eliminate debris build-up and sticking as well as minimize turbulence and false readings on the diaphragm.
  • The pilot shall be self-cleaning and self-flushing by locating the outlet in the bottom of the pilot ninety degrees to the inlet.
  • A sensing port shall be provided in the spring casing above the diaphragm.
  • Maximum working temperature: 180° F / 82° C
  • Maximum working pressure: 400 psi / 27.6 bar

106 / 206-IDC

Internal Drop Check

  • Prevents reverse flow and reduces surges
  • Completely mechanical and has no dependency on the pilot system
  • Silent operation

The Internal Drop Check (IDC) ensures quick positive shut-off whenever normal forward flow stops, this action will prevent reverse flow while reducing surge events.

The IDC assembly is a spring assisted, silent, mechanical check option for standard Singer main valves and comes in sizes ranging from 2 in / 50 mm – 36 in / 900 mm.

The IDC is a standard feature on the 106-PTC and 206-PTC series control valves and is available as on optional add-on for control valves larger than 2 in / 50 mm.

Select Singer main valve specifications from the main valve section and incorporate the following addendum:

  • Main valve shall be complete with an internal drop check.
  • In the event that forward flow stops for any reason, the Internal Drop Check (IDC) closes to seal against reverse flow, regardless of valve position.
  • The Internal Drop Check shall incorporate the existing Singer stainless steel 316 main valve stem only. No secondary valve stems will be permitted.
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106 / 206-NYM

No Yellow Metals

Yellow metal components such as Brass, Bronze and Copper may not be acceptable materials in harsh water conditions or in specific specifications for a variety of reasons. All or any portion of yellow metals in the internals of main valves may be upgraded to stainless steel. All or any portion of yellow metals on pilots or pilot tubing and fittings may also be upgraded to stainless steel.

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