Product Introduction

Singer Valve Inc. offers a wide range of automatic control valves to meet the needs of the Industrial, HVAC, Building Trades, Fire Protection, Irrigation and Water Utility markets. Most Singer Valves consist of a main valve and a pilot control system designed specifically to meet the requirements of the application. This catalog outlines only some of the many application solutions available. For further information about Singer Products please visit singervalve.com or contact us directly.

Main Valves:
Singer manufactures two distinct main body model series – “106 Series” Full Port and “206 Series” Reduced Port valves. The model 206 series valves are similar to the model 106 series except that the seat sizes are typically one standard pipe size smaller than the flange sizes (consult with factory on larger sizes). For example, a 6” (150mm) 206-PG valve has a 4” (100mm) seat diameter. The Model 206 is often a preferred selection when the flow ranges are suitable.



Singer Main Valves are available in three main models: PG, PT/ PTC, or PGM, each offers distinct operating efficiencies for varying applications (see Main Valve Section for details on each). Each is available in the 106 Series Full Port or 206 Series Reduced Port.

Smaller sized valves (106 up to 8” (200mm) and 206 up to 10” (250mm)) are flat diaphragm design (as shown in diagram referenced above). All larger sized valves are rolling diaphragm design as shown below. Singer converted from Double Rolling Diaphragm to the preferable Single Rolling Diaphragm design in 2003/2004. Most sizes are still available in Double Rolling Diaphragm design upon request. As well, most sizes are also available in Angle Pattern.



Further details on Main Valves can be found in the Main Valve section of this catalog. It is important to note that all data and dimensions are accurate at the time of printing but are subject to changes. For the latest data and dimensions please always refer to singervalve.com or contact the factory.

Singer Main Valve castings are based on ANSI Class 150 or 300 standards and drilled as per ANSI B16.42 or threaded NPT. Class 150 are machined flat faced. Class 300 are machined raised face. ANSI standard dimension are presented in this catalog in US Units (inches) and Metric Units. Also available are ANSI Flanges drilled to ISO 2531/BS4504 PN10, PN16, PN25, PN40 or threaded BSPT. ISO standard dimensions are presented in this catalog in Metric Units (mm). Australian Standard AS4087 machined to Class 16 or Class 35. Australian Standard AS2129 (Table A through Table K) consult factory for availability. Other International standards are also available, please consult the factory for details.

Singer Valve is proud to meet a wide range of regulatory standards to meet the requirements of your application. Please see page 8 for further details.

Pilots and Controls:
Singer offers a wide range of Pilot System options to suit the most complex applications (see High Performance Section/ Standard Models Sections for details). Singer specializes in the following areas: water loss management; pressure reducing control; relief, sustaining and surge control; pump, level or flow control; and electronic control.

Singer can customize to any required solution - please contact us to discuss your unique application requirements. Singer is proud of its products and believes that Singer valves are better than any other valve on the market. Singer offers better products, better quality, better service, better value, and better solutions to meet your unique needs.


Regulatory Requirements:

(See respective logo on top of this page, left hand side.)

ISO 9001: Singer Valve Inc. has established and will maintain an effective ISO 9001 Quality Management Program. This program detects promptly any deviations in the product quality before they can affect customers. To achieve our objectives, we employ skilled and experienced professionals, and we involve all company personnel in our ISO 9001 Quality Management Program.

NSF 61: The National Sanitation Foundation Distribution Systems Program is responsible for the certification of drinking water system components in North America. The goal of this program is to ensure that the approved products do not contribute contaminants to drinking water that could cause adverse health effects. Singer Valve has NSF61approval on all valve products ranging from 4” (100mm) through 24” (600mm). For a detailed list of approved components consult factory or visit the NSF61 website at www.nsf.org/certified - then search for “Singer Valve”.

Underwriters Laboratories Canada certifies valves for use as pressure control devices for fire extinguishing systems. Approved Singer Valve products include: 106 PR-8702 Pressure Reducing Valves (for ULC designation; 1/2” (15 mm) to 12”(300mm) globe and angle configurations; ANSI 150# and ANSI 300# flanges).

Underwriters Laboratories and Factory Mutual are regulatory agencies that provide international standards for safety for fire pump relief valves. These standards include pilot operated fire pump relief valves for use in water supply systems for fire protection systems. Singer Valve Inc. ULFM approved products are as follows: Pressure Relief Valves (specify 106 RPS - 8700 for ULFM designation); 2-1/2” (65mm), 3” (80mm), 4” (100mm), 6” (150mm), 8” (200mm) globe and angle configurations; ANSI 150# and ANSI 300# flanges and grooved end connections.

Note: Not all regulatory requirements are available in all size/ model combinations (consult with factory). Approvals provided upon request.


Limited Warrenty

This is a limited warranty. All Products manufactured by Singer are warranted for THREE YEARS from date of shipment (the "Warranty Period") against manufacturing defects in material and workmanship which develop in the service for which they are designed, provided the Products are installed and used in accordance with all applicable instructions and limitations issued by Singer.

Singer will at its sole discretion repair or replace a defective Product free of charge, if returned to Singer's factory, transportation charges prepaid, provided that, after inspection of the Product, it is found to have been defective at the time of shipment to the Purchaser. This warranty is expressly conditional upon the Purchaser giving Singer immediate written notice upon discovery of the defect. Repairs or parts replaced under this warranty are warranted only throughout the remainder of the Warranty Period. This warranty is in the nature of liquidated damages to which the Purchaser might otherwise be entitled at law or in equity, and the Purchaser hereby agrees that in lieu of any action for fundamental breach of contract or breach of a fundamental term of a contract, the Purchaser will rely solely upon the warranty provided herein. This warranty shall not apply to any Product modified or changed in design or function after leaving Singer's warehouse or to components which are subject to the warranty conditions of another manufacturer. Singer shall not under any circumstances be liable in any respect for any defective Products beyond the Warranty Period. Singer shall not under any circumstances, including without limitation, any default, negligence or breach of whatsoever nature by Singer, be liable whether during the Warranty Period or after the Warranty Period for any claims for labor, installation costs, losses damages or other special, incidental or consequential damages including but not limited to, loss of revenue or profits, loss of use, or any damage claims arising directly or indirectly from the use of any Product or any other expenses incurred by reason of any Product found to be defective.

Components used by Singer, but manufactured by others, are warranted only to the extent of that manufacturer's guarantee.

This warranty shall not apply if the Product has been altered or repaired by others, and Singer shall make no allowances or credit for such repairs or alterations unless first authorized in writing by Singer. Singer shall not be liable for any damages or charges sustained in the adaptation of use of its engineering data and services.

No representative of Singer may change any of the foregoing or assume on behalf of Singer any additional liability or responsibility in connection with any Product.

Disclaimer Of Warranties And
Limitations Of Liability

The foregoing warranty is exclusive and in lieu of all other warranties and representations, whether expressed, implied, oral or written, statutory or otherwise, including but not limited to, any implied warranties of merchantability or fitness for a particular purpose. All such other warranties and representations are hereby cancelled.

Singer Valve shall not be liable for any incidental or consequential loss, damage or expense (including loss of use) caused by defects in the product or by repair of it or arising directly or indirectly from the use of the product or otherwise. Singer Valve shall not be liable for any damages or charges for labor or expense in making unauthorized repairs or adjustments to the product. Singer Valve shall not be liable for any damages or charges sustained in the adaptation of use of its engineering data and services. No representatives of Singer Valve may change any of the foregoing or assume any additional liability or responsibility in connection with the product. The liability of Singer Valve is limited to material repairs or replacements F.O.B. our factory.


How To Order



When ordering please provide as much detail as possible. Order on-line.

Prefix and Suffix to the Catalog Model #
Please include the appropriate prefix/suffix to the Catalog Model # when ordering.

Catalog Model Number Prefixes (using the 106 PG as an example):
(no prefix)      106 PG = Globe
                        A106 PG = Angle

Catalog Model Suffixes can be added to a catalog Model # to specify the addition of an option.
(using the 106 PG and the Anti Cav Option as an example) 106 PG -AC = Globe 106-PG with Anti-Cav trim.

Parts and Repair Kits:
To order Parts or Repair Kits it is important to properly identify the products in place. Please include all Identification Plate information posted on the existing products. Essential information required includes: valve model and serial number. Other information required includes: valve size, valve function, material, pressure rating, end connections, pilot controls, control adjustment ranges, etc. Identification Plates are mounted on all Singer Valve products and provide the necessary data. The illustration below is an example of a Singer Identification Plate.


To Specify Singer Products

Singer Specifications are set up in a modular fashion.
To specify Singer Products:
1. Select the product you require. Refer to the specification which accompanies that product.
2. Refer to the Main Valves section. Add the specification for the Singer Main Valve Body selected.
3. Refer to the Main Valves Options section. Add the addendum to your Main Valve specification (if applicable).
4. Refer to the Pilots & Accessories section. Add the specification for the Singer Pilot and/or Accessory selected (if applicable).