The Arion series strainers are more suited to dirty water applications. The dirt is trapped on the inside of the double mesh screens and collects in the bowl. The double port construction of the housing prevents the particles from re-entering the flow stream.
The collected dirt can be flushed directly out to drain by opening the blowdown. The J1521G strainer has a glass collection bowl, while the J1521M strainer has a metal bowl. Standard pressure rating for the strainer is 232 psi / 16 bar. Body connections are 1/2 in / 15 mm NPT and it comes complete with a 3/8 in / 9.5 mm blowdown valve and a discharge tube.
There are two versions of the standard ASTM B16 brass strainer with 40 mesh stainless steel screens.
The standard strainer J0098A has a 3/8 in / 9.5 mm blowdown/maintenance port for access to the screen and the 3/8 in / 9.5 mm NPT inlet and outlet connections. The J0097A strainer provides a standard 1/4 in / 6.35 mm sensing / gauge connection. All stainless steel construction is available as an option.
The strainer shall be a Singer Model J0098A or J0097A (additional 1/4 in / 6.35 mm connection).
Pilot Check Valves
The 10 pilot check valve is standard on all 106 and 206 series valves requiring a pilot check function such as BPC, PR-C, RPS-C types. It is designed to require a low “cracking” differential pressure to open. The 12 has a higher “cracking” pressure and requires more differential pressure to open.
- Body: ASTM B16 brass Seat Ring: ASTM B-16 brass
- Inner Valve: Lexan Seals: Buna-N
Micrometer Flow Control Valve
Micrometer flow control valves allow for precise flow control. There is full flow in one direction and adjustable restricted flow in the opposite direction. They are standard on certain models, such as BPC pump control valves and available as an option for other applications. Standard end connections are female-to-female 1/4 in / 6.35 mm NPT.
- Forged brass body Urethane disc
- Stainless steel stem Stainless Retaining Ring Buna-N seals
Micrometer Needle Valve
Micrometer needle valves allow for precise speed control. There is virtually infinite flow adjustment in both directions. Standard end connections are female-to-female 1/4 in / 7.5 mm NPT.
- Forged brass body, Buna-N seals and stainless steel stem
Needle Valve Speed Control
The 852-B needle valve is a pilot speed control valve. The body is brass and the stem is stainless steel with a fine thread for controlling flow. O ring packing assures leak proof, trouble free service. 1/4 in / 7.5 mm NPT female to female end connections.
The fixed restriction is a 303 stainless steel bodied fitting with a stainless steel orifice plug. The fixed restriction controls the flow rate in the pilot system. The orifices are sized to provide the proper control to a select series of valve sizes only. This all stainless steel version replaces all previous versions of the brass body, with stainless steel insert.
The 26 flow stabilizer is a self-cleaning, opening speed control. It is used in conjunction with a fixed restriction orifice that is usually threaded into port 3. The 26 stabilizer allows free flow down to the bonnet (port 1) and restricts flow up from port 1.
The 26 stabilizer is used as the standard flow stabilizer (opening speed control) on model 106-PR or 206-PR pressure reducing valves or any other model that requires low flow stabilization.
The flow stabilizer shall be a Singer model 26.
All Singer valves are fitted with Copper tubing as standard. There are optional upgrades to Stainless Steel or Stainless Steel braided hose available.
Stainless Steel Braided Hose
Automated Pilot Control
The 420-DC or 420-AC provide for a reliable, simple and cost efficient way to automate today’s water systems.
When a sturdy slow speed 24 VDC motor actuator drive is fitted onto the 160-PR pilot, this pilot then becomes the 160-420-DC. The minimum system pressure downstream of the pressure reducing valve is set by adjusting the pilot screw that compresses the pilot spring. The motor actuator responds to a 4 - 20 mA signal, rotating the pilot adjusting screw corresponding to the change in signal. The number of turns is adjustable and may be programmed to suit the pressure change per turn of the pilot screw to produce the desired maximum and minimum downstream pressure.
The 160-420-DC or 160-420-AC requires less than 1 amp power to operate, controlled by the 4 - 20 mA signal from the water distribution SCADA system. The very low power requirement lends itself well to a solar powered self contained station. Extended power failure would result in relatively steady pressure at the last setting. Optional freeze or default to high or low pressure available on loss of signal.