Single Union Ball Check -- 12**005
from Asahi/America, Inc.

Check valves are used to prevent the reversal of flow in a line. When open and under flow pressure, the checking mechanism will move freely in the media, offering very little resistance and minimal pressure drop. We offer two basic types of check valves: swing check valves and ball check valves. A... [See More]

  • Material Of Construction: PVC (optional feature); CPVC (optional feature); Polypropylene (optional feature); PVDF (optional feature)
  • Valve Size: 0.50
  • Valve Type: BallDisk; Foot Valve (optional feature)
  • Connection Description: Threaded (optional feature); BoltFlange (optional feature); ButtWeld (optional feature); SocketWeld (optional feature)
Chem-Tech Injection Back Check Valve, Hypalon (CPSE) (Fits 1/4" ID X 3/8' OD Tubing) -- 41693
from Cannon Water Technology Inc.

Chem-Tech Injection Back Check Valve (Fits 1/4 " ID X 3/8' OD Tubing). Use this injection back check valve assembly when you have 3/8 " outside diameter tubing. Material of construction: PVC Housing. Hypalon (CSPE) Valve Seat. Ceramic Ball [See More]

  • Material Of Construction: PVC
  • Valve Size: 0.25
Flange Insert Valve -- 0.5" FIV
from Check-All Valve Mfg. Co.

Flange Insert valves are the ultimate check valves in flanged systems. They provide the simplest most economical way to install check valves in a piping system, the valve body automatically positions the valve and holds it in place while bolts are being installed and tightened. All that is required... [See More]

  • Material Of Construction: Aluminum (optional feature); BrassBronze; StainlessSteel; Steel; Exotic Metal; FEP Encapsulator; PVC; Polytetrafluoroethylene
  • Valve Size: 0.50
  • Valve Type: Lift Check; Poppet; BackFlow
  • Connection Description: BoltFlange; FaceSeal (optional feature); 1-3/8" O.D. Flange
Flap Check Valve -- Series FPV
from Dwyer Instruments Inc.

Series FPV Flap Check Valves prevent reversal of flow in piping systems. They are ideal where back flow could potentially cause damage to pumps, filters, or process equipment. The valves operate without the need for any adjustments or settings. Line pressure moves the solid plastic flap off the... [See More]

  • Material Of Construction: PVC
  • Valve Size: 2.80 to 5.50
  • Valve Type: Wafer
  • Connection Description: Compression
Angle Seat Check Valve Type 303 - 304
from GF Piping Systems

GF Piping Systems Angle Seat Check Valves Type 303/304 show their strength with remarkable reliability. Type 303/304 valves work in either vertical or horizontal position. The design has evolved its strengths over many years. Because of its position-independent function and the simple maintenance... [See More]

  • Material Of Construction: ABS; PVC
  • Valve Size: 0.59 to 3.54
  • Valve Type: BallDisk
  • Connection Description: Union; Solvent Cement Spigots or Sockets
Check Valve,1 In,SKT/FNPT,PVC -- 5AAP5 [TC10100ST from Hayward Flow Control]
from Grainger Industrial Supply

Check Valve, Control Check, Material of Construction PVC, Size 1 In, SKT/FNPT Connection, Length 5.25 In, Width 3.00 In, Overall Height 3.00 In, Rated For 150 PSI, Cracking Pressure 3 PSI, Max Temp 140 F, Mounting Position Vertical Flow Up, Seat Material Viton, Seal Viton, Flow 18 GPM, Standards NSF... [See More]

  • Material Of Construction: PVC
  • Connection Description: Threaded; SKT/FNPT
  • Valve Type: BallDisk
  • Media Temperature: 140
Full Pattern Wafer Check Valves -- WCV Series
from Hayward Flow Control

New Full Pattern Wafer Check Valves in PVC and CPVC, sizes 2" - 8' with FPM or EPDM Gasket and Disc Seals. Spring return option in 316 Stainless Steel or Hastelloy materials. No spacers or specialty flanges required. Features. Robust Full Pattern Body in PVC, CPVC and Coming Soon, GFPP. No Need for... [See More]

  • Material Of Construction: PVC; CPVC
  • Connection Description: Threaded
  • Valve Size: 2.00 to 8.00
  • Maximum Pressure: 150.00
Ball / Check Valve Combo -- Bcv150
from Liberty Pumps

Ball/check combo provides compact design. Heavy-duty PVC. 125 PSI rated. Vertical or horizontal installation. BCV150 1-1/2" or BCV200 2" [See More]

  • Material Of Construction: PVC
  • Maximum Pressure: 125.00
  • Valve Size: 1.50
Series CKD Compact Diaphragm Check Valve -- CKD025EP-PV
from Plast-O-Matic Valves, Inc.

OPERATION: The "CKD" Check Valves utilize a flexible elastomer disc for their sealing action. This sensitive disc offers very low pressure sealing. In addition, the disc requires extremely minimal pressure to move to the open position. Since these sealing discs are self-centering, they seal in the... [See More]

  • Material Of Construction: PVC
  • Connection Description: Threaded; 1/4" NPT
  • Valve Size: 0.25
  • Maximum Pressure: 140.00
Normally Open Check Valve; Radiation Grade; Male Luer Slip White Inlet to Male Luer Slip Green Outlet; High Flow -- 91040
from Qosina Corp.

This is a normally open checkvalve whose ability to stop flow is triggered by the mass potentially crossing the component per time unit. The floating membrane technology is the core of this component which provides non-restriced fluid paths only for gas. It is self-actuating, self-cleaning, easy to... [See More]

  • Material Of Construction: PVC; PVC
  • Media: Air; Water
  • Maximum Pressure: 0.08
1 1/2" PVC Foot Valve with Threaded and Socket Ends -- 19425 [**FINISHED** from NIBCO INC.]
from U.S. Plastic Corporation

150 psi at 73 degrees F water-non shock. For pump suction service. Ball Type Check. All plastic, removable screen. Viton ® ball seat and O-ring, NSF listed. Equally effective in checking back flow from head pressure on the discharge or suction sides of pump. Will operate in horizontal and... [See More]

  • Material Of Construction: PVC
  • Valve Size: 1.50
  • Valve Type: BallDisk; Foot Valve
  • Connection Description: Threaded
Campbell Flo Control Product -- 1001C-07
from Campbell - Subsidiary of Baker Manufacturing

Weighted Buna-N flapper and gaskets . Gaskets for both 1-1/4 ” and 1-1/2 ” provided with each valve. Sump pumps with larger volume output use 1500 or 1520 series. swing check. Clear body [See More]

  • Material Of Construction: PVC
  • Valve Size: 0.75
AR Series -- 1" Model
from Chemline Plastics Limited

Allows gasses to escape from pipe lines, must be installed vertically [See More]

  • Material Of Construction: PVC
  • Valve Size: 1.00
  • Valve Type: BallDisk
  • Connection Description: Threaded (optional feature); BoltFlange (optional feature); SocketWeld (optional feature); 1" Socket, Threaded, or Flanged
PVC Ball Check Valve, 3/8" NPT(F) -- EW-01368-10
from Cole-Parmer Instrument Company

Optional screens convert your check valve to a foot valve. Unique square cut seat seals at very low back pressures. Installs either vertically or horizontally to fit most applications. Assembled with water soluble, silicone free lubricant. One-piece PVC body construction. Protects your equipment by... [See More]

  • Material Of Construction: PVC
  • Flow (Cv): 4.80
  • Valve Type: BallDisk
Economy Swing Check Valve:Soc x Soc -- S11-030 Soc x Soc
from Dura Plastic Products, Inc.

Valves:Economy Swing Check Valve:Soc x Soc [See More]

  • Material Of Construction: PVC
  • Valve Size: 3.00
  • Valve Type: Swing
Ball Valves
from George Fischer Signet, Inc.

Manual, metering ball valve, provides accurate, low flow values [See More]

  • Material Of Construction: PVC
  • Valve Size: 0.50
  • Valve Type: BallDisk
  • Connection Description: Threaded
Hi-Strength Check Valve
from Industrial Specialties Mfg., Inc.

Buna-N, EPDM or Viton seal material, 316 SS or teflon ball material [See More]

  • Material Of Construction: Kynar; PVC (optional feature); Nylon (optional feature); Polypropylene (optional feature)
  • Connection Description: TubeFitting
  • Valve Size: 0.12 to 0.31
  • Media: Air; CompressedAir
Thermoplastic Check & Vent Valve
from IPEX Inc.

Check valves should be used whenever there is a need to prevent back-flow of process media. This may be when two incompatible fluids cannot be allowed to mix, or when reverse flow would cause undesirable drainage of a system line or tank. Many styles exist including: simple ball checks, heavy duty... [See More]

  • Material Of Construction: PVC; CPVC
  • Maximum Pressure: 100.00 to 232.00
  • Valve Size: 0.50 to 8.00
PVC and CPVC Ball Check Valves
from NIBCO INC.

The Right Ball Valve for the Job. A wide selection of NIBCO ball valves are available in bronze, brass, lead-free, carbon steel or stainless steel materials. Select the right ball valve in one-piece, two-piece, three-piece, full port, or conventional port. A range of trim material is available. The... [See More]

  • Material Of Construction: PVC
  • Valve Size: 0.75
  • Valve Type: BallDisk
  • Connection Description: Threaded; SocketWeld; 3/4" Threaded and Socket Ends
1/2 in. NPT PVC Check Valve -- 5770062
from Princess Auto Limited

1/2 in. NPT PVC Check Valve [See More]

  • Material Of Construction: PVC
  • Valve Size: 0.50