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Proco ProFlex - Model Style 750 -Jacketed In-Line Flanged Rubber Check Valve
The Proco ProFlex Style 750 jacketed flanged rubber check valves are designed with a full metal enclosure, for easy installation within existing piping systems.
Some notable features of the Proco ProFlex Style 750 include:
- All-rubber construction to resist abrasive slurries
- NSF 61 standard construction
- Ultra-quiet operation, with no water hammer
- Unique design to prevent backflow
- Negligible maintenance and energy costs
- Will not warp or freeze
- Quick interchange with any flap type check valve
- Available in sizes from 1” to 96”
- Available with special ID to suit concrete pipe
The PROCO Series 700 “ProFlex” Rubber Check Valve is a cost effective way to control back pressures from sewage treaent plants, outfalls and tidal operations. They are a fully passive flow device requiring neither maintenance nor any outside sources of power or manual assistance to operate.
The PROCO Series 700 “ProFlex” Check valves are offered as direct replacements for ineffective and maintenance ridden flap type check valves, commonly known to seize, rust and bind in unwanted positions. Unlike flap type valves, the “ProFlex” rubber check valve will handle large obstructions without jamming or having swing gates binding open. Specify the PROCO Series 700 “ProFlex” rubber check valves to provide backflow protection from (1) Sewage slurries, (2) Outfalls to ocean fronts from heavy rainfall activity, (3) Prevention from land erosion due to back flow conditions, (4) Protection from saltwater to fresh water ponds and catch basins and numerous other water based applications. Our history in the manufacture of rubber piping products dates back to 1930. When an engineered solution is needed to solve a piping or backflow problem, call PROCO.
The PROCO Series 700 “ProFlexTM” Rubber Check valves are available in a Flanged (Style 710 or 720), Sleeved (Style 730 or 740), or Jacketed (Style 750). Inline orifice (style 770/780)
- Style 710: Flanged: Designed to bolt directly to existing flanges or new installations, flanges are drilled 150# standard. Other drilling standards are also available upon request. The style 710 can be installed in either vertical or horizontal application.
- Style 720: Flanged Inline: Designed to fit directly inside of an existing pipe. Supplied with a flat face rubber flange which allows installation between existing pipe flanges eliminating the requirement for a valve body. Other drilling standards are also available upon request.
- Style 730: Sleeve Type: Designed to easily slip over an existing pipe, is affixed to a pipe with heavy-duty Stainless Steel clamps. Can be installed in either vertical or horizontal application.
- Style 740: Slip In Inline: Designed to slip directly inside of an existing pipe. Supplied with a stainless steel expandable clamp to secure it in place.
- Style 750: Jacketed: Designed with a full metal enclosure which allows easy installation in existing piping systems. Utilizes the Style 710 as the check valve.
- Style 770/780: Designed with a metal or plastic orifice plate and a rubber disk , this valve is an ideal valve to provide high back pressure capability on clean water applications
- Style 790: Low Headloss In-Line: Designed as an all one piece constructed valve, the Style 790 is one of lowest headloss valves on the market. A passive flow device insuring no delamination.
All PROCO Series 700 ProFlex rubber check valves are available in a wide selection of back pressure capabilities and elastomers, including NSF/ANSI 61 certified material. Because of the wide array of available configurations, there’s sure to be a Series 700 ProFlex valve to suit your application.
PROCO ProFlex check valves won’t freeze or deform, and they function solely on the inlet and back pressure which are present in each unique situation.
Each valve is designed by some of the most experienced rubber technicians in the industry, and are carefully constructed using the finest engineered materials available. All of our Series 700 ProFlex valves are precisely manufactured to ensure proper operation, and will provide years of unhindered, trouble-free service.


Notes: Higher back pressures can be obtained by using Internal Supports, contact PROCO.
Dimensions are approximate and may change due to pipe dimension changes, inlet, back pressures and flow rates.
- Larger sizes available upon request.
- Weights are approximate.
- Maintenance free
- Will seal even with solids entrapment
- Designed to withstand wear
- Quiet operation, no water hammer!
- 100% backflow prevention
- Tough enough for abrasive slurries
- No body halves with problematic sealing issues
The ProFlex 750 is designed to be the answer to enclosed body check valve requirements for slurry applications. It requires no external power sources, thereby making operation costs obsolete.
The valve’s unique design means there are no mechanical parts to break down or wear therefore reducing maintenance costs.
The ProFlex 750 easily allows flow of abrasive materials such as raw sewage, sludges or slurries. The elastomers flexible design allows the media to flow through without significant head losses and will seal around solids trapped in the valve.
The ProFlex 750 valves are versatile and can be installed either horizontally or vertically and are designed within industry standards for flange size and drilling.
Vacuum supports can be supplied independent to the valve as well as internal supports which can ensure back pressures up to 600 psi.
Applications
Potable Water Outfalls – Stand Pipes - Sewer Interceptors - Wet Wells - Mine Tailing Pipe line out falls - Dredging – Scrubber Pipe Systems - Outfall Lines – Pneumatic Conveying- Pump Backflow Protection
Construction
The solid carbon steel body (optional materials are available) and one-piece rubber valve provide lasting durability. The unique feature is the pull through design which provides a tamper proof valve required for Homeland Security Issues. The 2 flush ports allows for easy cleaning of the valves interior body.
Replacement Costs?
Cost Effective and Simple! The inner sleeve is a standard ProFlex 710 readily available for quick replacement if the sleeve does need unlikely replacement
