Singer Valve - Model 106/S106-PGM -Full Port, Integral Back-Up, Dual Diaphragm, Automatic Control Valve

It is a variation of the standard single chamber 106-PG valve with modifications that add the following features:

• Back-up diaphragm
• Completely self-contained
• Modulating or emergency close back-up
• Back-up components kept out of the main stream until required
• Extremely positive shut-off
• Emergency close for security breach or earthquake

With SRD technology the valve becomes incredibly steady throughout a complete range of flows and eradicates the need of additional low flow bypass valves.

The PGM series control valves may be combined with additional Singer Valve specific accessories to add further customization such as:

• Back-up pilot system
• Annunciation with an Single Pole Double Throw Limit Switch

Refer to Main Valve Options on page 74 and Pilots & Accessories on page 249 to customize the valve to suit specific applications.

• Ideal for applications requiring redundant and back-up security
• Virtually uninterrupted control under a variety of system failures
• Remote annunciation option available
• Available in globe and angle style

A.    The main valve shall be a Singer specify main valve model number (106/S106/206/S206) -PGM double chamber, dual diaphragm actuated specify (full/reduced) port model.
B.    Main valves 4” (100mm) and smaller shall provide smooth, frictionless motion with actuation being achieved by the use of a flat style EPDM diaphragm. They shall be constructed of nylon fabric bonded with synthetic rubber. The diaphragm shall not be used as a seating surface
C.    Main valves, 6” (150mm) and larger, shall provide smooth frictionless motion to ensure a low flow stability to specify minimum USGPM or L/s, achieved using SRD-Single Rolling Diaphragm technology.
D.    The main valve, adapter and bonnet shall be constructed of ASTM A536 (Grade 65/45/12) ductile iron.
E.    The main valve bonnet and adapter shall be located using two or more locating guide pins to maintain the inner valve assembly alignment and for ease of maintenance.
F.    The main valve trim, consisting of seat ring and primary and secondary stems shall be constructed of AISI 316 stainless steel. The valve stems shall have wrench flats for ease of maintenance.
G.    The main valve shall provide a drip-tight seal using a mechanically retained resilient disc, having a rectangular cross section, against the stationary AISI 316 stainless steel seat ring.
H.    The stationary AISI 316 stainless steel seat ring of main valves 2.5” (65mm) and larger shall be held in place using Spiralock® self-locking screws and seat ring retainers.
I.    All internal and external ferrous components, including all mating surfaces, shall be coated with an NSF-61 approved fusion bonded epoxy to a minimum of 10 mils DFT-Dry Film Thickness.
J.    The main valve elastomers: diaphragms, resilient disc and seals, shall be of EPDM or Buna-N.
K.    All main valve fasteners (bolts, nuts, studs, cap screws) shall be supplied as AISI 18-8 or 304 stainless steel. All bonnet bolts shall be fitted with stainless steel washers to prevent damage to the bonnet coating.
L.    Valve shall have flanged, threaded or grooved end connections. Flanged connections shall be specify ANSI/ASME B16.42 Class 150#/300# or ISO 7005-2 PN10/16/25/40  flange drilled, faced and rated.
M.    All repairs and maintenance shall be possible without removing the valve from the line. To facilitate easy removal and replacement of the inner valve assembly and to reduce unecessary wear on the guide, the stem shall be vertical when the valve is mounted ina horizontal line.
N.    Each valve shall be air tested prior to shipment. The standard test shall include leakage test, seat leakage test, and stroke test. Refer to IOM 622B for further details or contact Singer Valve. Ewhere the set point is provided, Singer Valve will preset the pilot. Further testing is available on request at published rates within the capabilioties of Singer Valve’s manufacturing facilities.

Customize your valve by adding any of the available options

• Position Indicators
• Oxy-Nitride Stem
• Internal Drop Check
• Grooved Ends
• Reclaimed Water