Check and Relief Valves

• Circle Seal Controls is the industry standard for heavy duty, industrial service check valves.
• Check valves available in: brass, carbon steel, aluminum, and stainless steel. O-rings available in material compatible to media temperature and chemical compatibility.
• Connection sizes offered in ⅛” NPT to 2″ NPT. Various other non-standard inlet/outlet connections are also available.
• Wide spectrum of check valve styles offered. Low pressure units rated to 25 PSI with a cracking pressure of 4″ W.C. maximum. High pressure units rated to 10,000 PSI with a cracking pressure of 30 PSI maximum.
• Circle Seal check valves offer the special features of: low pressure, high pressure, ultra sensitive, positive sealing, and zero leakage.
• Standard units stock in Overland Park, KS! Call for competitive price quote!

Distributor of Circle Seal Controls industrial relief valves.

• Circle Seal Controls offers high quality engineering and manufacturing in their relief valves.
• Relief valves available in: brass, naval brass, aluminum, and stainless steel. O-rings available in material compatible to media temperature and chemical compatibility.
• Connection sizes offered in ⅛” NPT to 1 ¼” NPT. In-line and pop-off styles available.
• Operating pressure available in vacuum to 5000 PSI. Wide range of cracking pressures offered up to 4500 PSI.
• ASME safety relief valves also available up to 1200 PSI.
• Most models of Circle Seal Controls relief valves offer: deflector cap, cryogenic service, adjustable cracking pressure, zero leakage, optional factory preset, tamper proof adjustment, and 100% seat leakage tested.
• Contact De-Mar & Associates for application, engineering, and pricing questions!

Circle Seal Controls offers the Atkomatic series of solenoid valves.

• Atkomatic line of solenoid valves available.
• Normally closed or normally open in direct lift, semi-direct lift, or piston operated.
• Solenoid coils available in and not limited to: 24, 100, 110, 115, 200, 220, 230, 380, and 460 VAC/60-50Hz. 12, 24, 48, 125, and 250 VDC.
• All NEMA ratings available. All lead orientations and specials available.
• Valve size connection in ⅜” NPT to 3″ NPT. Valve bodies are available in brass and stainless steel. Pressure ratings and orifice sizes vary.
• Valve coefficient (Cv) is supplied for all units to properly size the correct valve for the application.
• Seal, seat, and pilot material selectable and determined by valve service and media.
• Safety solenoid valves for hazardous locations.
• Heavy-duty process solenoid valves for clean air, gases, liquids, steam, corrosive fluids, and cryogenic fluids.
• Call with new application operating parameters or Atkomatic solenoid valve part number for a quote on price and delivery!