Check Valve -- F-2804-400
from Air Logic

The Check Valves permit flow in one direction only; the operation of the check valve is based on the movement of a small disc within the housing. The disc shifts within the housing as the pressure differential changes from forward to reverse. A flat surface on one side of the disc seals off flow,... [See More]

  • Valve Type: Check
  • Maximum Pressure: 10.00
  • Valve Size: 0.06 to 0.12
  • Number of Ports: 2
Barb to Barb Enlarging Disc Check Valve -- AP19CV012R18NL
from Ark-PlasĀ® Products, Inc.

All Ark-Plas ® Check Valve barbs are molded without a parting line. This means that every sealing surface on each barb is seamless all the way around, eliminating flash, or mold mismatch. Coupled with our high-quality manufacturing processes, a barb without a parting line helps to ensure a... [See More]

  • Valve Type: Check
  • Maximum Pressure: 1.00 to 150.00
  • Valve Size: 0.12 to 0.19
  • Number of Ports: 2
Rada Series Mixing Valve -- Rada 215
from Armstrong International

Rada 215. Rada Thermostatic Mixing Valve of “sealed for life ” replaceable cartridge construction. Compact design is ideally suited for use at or near the final point of use to deliver a pre designated mixed water temperature to either a single or a small “group ” of... [See More]

  • Valve Type: Check; Mixing
  • Maximum Pressure: 10.00 to 150.00
  • Valve Size: 0.50
  • Number of Ports: 3
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]

  • Valve Type: Foot Valve (optional feature); Check
  • Maximum Pressure: 150.00
  • Valve Size: 0.50
  • Number of Ports: 2
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]

  • Valve Type: Check
  • Primary Material: PVC
  • Valve Size: 0.25
  • Actuation: Manual
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]

  • Valve Type: Poppet; Check
  • Number of Ports: 2
  • Valve Size: 0.50
  • Media Temperature: -320 to 700
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]

  • Valve Type: Check
  • Media Temperature: 113
  • Valve Size: 2.80 to 5.50
  • Primary Material: PVC
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]

  • Valve Type: Check
  • Number of Ports: 2
  • Valve Size: 0.59 to 3.54
  • Primary Material: PVC; ABS
Air Gap Drain Kit,1/4,3/8,1/2 In,ABS -- 2ZXY5 [AGD4012 from Apollo Valves]
from Grainger Industrial Supply

Air Gap Drain Kit, Size 1/4, 3/8, 1/2 In., Material of Construction ABS, Temp. Range (F) 33 To 180, Max. Temp. (F) 180, Width (In.) 3.30, Length (In.) 4, For Use With 2ZXX6, 2ZXX7, 2ZXX8, Standards USC, FCCCHR [See More]

  • Valve Type: Check
  • Media Temperature: 33 to 180
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]

  • Valve Type: Check
  • Maximum Pressure: 150.00
  • Valve Size: 2.00 to 8.00
  • Number of Ports: 2
Check Valves
from International Polymer Solutions Inc.

Our IPS Check Valve feature all PTFE wetted surfaces for excellent performance in all high purity applications. Our PTFE design resists chemical corrosion and other elements within a harsh process environments. IPS Check Valves are commonly found as backflow preventers in clean processes. They are a... [See More]

  • Valve Type: Check
  • Maximum Pressure: 50.00
  • Valve Size: 0.12 to 0.50
  • Media Temperature: 230
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]

  • Valve Type: Check
  • Maximum Pressure: 125.00
  • Valve Size: 1.50
  • Primary Material: PVC
Series CK Self-Closing Thermoplastic Check Valve -- CK075EP-TF
from Plast-O-Matic Valves, Inc.

Features/Benefits: Patented Design: Self-sealing - they are not dependent on gravity, mounting position or reverse flow, a significant improvement over ball check valves. Silent Operation: No internal sliding or loose parts to slam or vibrate, chattering is eliminated!. Dependability: Leak-free... [See More]

  • Valve Type: Check
  • Maximum Pressure: 100.00 to 150.00
  • Valve Size: 0.75
  • Number of Ports: 2
1-Way Check Valve with Female Inlet and Male Outlet -- 80058
from Qosina Corp.

1-Way Check Valve with Female Inlet and Male Outlet [See More]

  • Valve Type: Check
  • Primary Material: PC, Silicone
  • Maximum Pressure: 0.11
Furon® MCVM & LCVM Valves
from Saint-Gobain Performance Plastics - Process Systems

The Mini and Large Check Molded Valve is an injection molded, high-purity valve constructed of 100% non-metallic materials, and featuring a PFA-wetted flow path. Assembled and double-bagged in a Class 100 clean room, the valve is 100% tested for operation. The MCVM and LCVM prevents back flow in... [See More]

  • Valve Type: Check
  • Media Temperature: 32 to 203
  • Valve Size: 0.06 to 0.38
  • Flow (Cv): 0.10 to 1.90
Automatic RB® (Relief/Bleed) Valve -- 1600-60
from Terra Universal, Inc.

Continuously bleeds off excess internal gas to maintain a safe positive pressure inside glove boxes. Variable release mechanism automatically discharges any sudden surge of incoming gas. Protects against accidental negative pressure by functioning as a check valve. Extends life of doors and gaskets. [See More]

  • Valve Type: Check
  • Number of Ports: 2
  • Valve Size: 0.62 to 1.00
  • Primary Material: polymer
+GF+ PVC Cone Check Valves Type 561 & 562 -- 20766
from U.S. Plastic Corporation

GF+ 561 valves feature a unique check cone element design that optimizes flow geometry and minimizes flow resistance and pressure loss. The self-closing mechanism operates autonomously with minimal line pressure. The streamlined check cone and the refined geometry in every detail provide for a... [See More]

  • Valve Type: Check
  • Primary Material: PVC
  • Valve Size: 0.38
  • Connection Description: Union; SocketWeld
Spring Activated Check Valves -- SV111 Series
from Valcor Engineering Corporation

The SV111 is a spring-activated check valve with disc type seating. It has a relatively low, yet realistic rated cracking pressure, resulting in quick response to changes in fluid pressure. The optically flat PTFE seal disc and seat provides drip tight sealing on most fluids. It ’s small... [See More]

  • Valve Type: Check
  • Maximum Pressure: 100.00
  • Valve Size: 0.25
  • Number of Ports: 2
1 1/2" 071-45 deg. Ball Check Valve
from XOMOX (A Crane Co. Company)

Lined valves and accessories use fluorocarbons such as PFA, PVDF, PTFE, PFA-AS (antistatic), and UHMWPE upon customer request. The melt process allows the liner to be locked into dovetails, locking grooves, and locking holes in the casting. Consequently, the potential for liner collapse and blow out... [See More]

  • Valve Type: Check
  • Maximum Pressure: 200.00
  • Valve Size: 1.50
  • Media Temperature: -20 to 400
Backflow Preventer 4C-100 Series -- Model CBBP
from Apollo Valves

Integral strainer for equipment protection, prevents contamination [See More]

  • Valve Type: Check
  • Maximum Pressure: 150.00
  • Valve Size: 0.25 to 0.38
  • Number of Ports: 2
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]

  • Valve Type: Check
  • Primary Material: 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]

  • Valve Type: Check
  • Maximum Pressure: 150.00
  • Valve Size: 1.00
  • Media Temperature: ? to 140
Acetal Check Valves -- GO-98675-00
from Cole-Parmer

Acetal Check Valve, 1/4" NPT(F) inlet/1/4" NPT(F) outlet. Breaking pressure: 0.5 psi. Connections: Inlet 1/4" NPT(F); Outlet 1/4" NPT(F). Cv: 1.45. Material: Acetal. Max psi: 235 [See More]

  • Valve Type: Check
  • Flow (Cv): 1.45
  • Maximum Pressure: 235.00
  • Primary Material: Acetal
Acetal Check Valve, 1/4" NPT(F) inlet/1/4" NPT(F) outlet -- EW-98675-00
from Cole-Parmer Instrument Company

Constructed of acetal, NBR rubber, and 303 stainless steel. Maximum temperature is 150 °F (66 °C). Install in any position. Specifications. Product Type Check Valves (manual). Connections Inlet 0.25 in; Outlet 0.25 in. Cv 1.45. Material Acetal. Max pressure (psi)235 [See More]

  • Valve Type: Check
  • Flow (Cv): 1.45
  • Maximum Pressure: 235.00
  • Primary Material: Acetal
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]

  • Valve Type: Check
  • Primary Material: PVC
  • Valve Size: 3.00
Bel-Art LDPE Check Valve -- hc-22-237-552
from Fisher Scientific

Check Valve. Autoclavable Polypropylene Check Valve, Bel-Art, 5/16 to 1/4 in. 10psi -14 to +76 °F -26 to +25 °C Check Valve Ideal for low-pressure [See More]

  • Valve Type: Check
  • Primary Material: Polypropylene
Ball Valves
from George Fischer Signet, Inc.

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

  • Valve Type: Ball; Check
  • Number of Ports: 1
  • Valve Size: 0.50
  • Primary Material: PVC
Acrylic Check Valve
from Industrial Specialties Mfg., Inc.

Cracking pressure as low as 3" H2O, acrylic housing with silicone diaphragm [See More]

  • Valve Type: Check
  • Number of Ports: 2
  • Valve Size: 0.09 to 0.12
  • Primary Material: Acrylic
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]

  • Valve Type: Check
  • Maximum Pressure: 100.00 to 232.00
  • Valve Size: 0.50 to 8.00
  • Primary Material: PVC; CPVC
Metric Thermoplastic Fitting -- PQM63 Check Valve
from Mid-America Fittings, Inc.

Black acetal copolymer with food grade nitrile rubber o-rings [See More]

  • Valve Type: Check
  • Number of Ports: 2
  • Valve Size: 0.24 to 0.47
  • Primary Material: Acetal
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]

  • Valve Type: Check
  • Number of Ports: 2
  • Valve Size: 0.50
  • Primary Material: PVC
Check Valve Duckbill -- ASD-2B
from Pneuline Supply, Inc.

1/8 BARB 1/8 or 3/16 barbed valve made of nylon or polypropylene with a silicone duckbill [See More]

  • Valve Type: Check
1-1/4 in. Sump Pump Check Valve -- 8036600
from Princess Auto Limited

1-1/4 in. Sump Pump Check Valve [See More]

  • Valve Type: Check
  • Valve Size: 1.25
AK Series -- AKH-03
from SMC Corporation of America

AKB, Check Valve with One-touch Fitting, Push Type [See More]

  • Valve Type: Check
  • Maximum Pressure: 145.04
  • Valve Size: 0.16
  • Number of Ports: 2
Check Valve -- VPS5401001N
from Value Plastics, Inc.

30 psi back pressure, 1/4 psi inlet cracking pressure, ABS w/silicone discs [See More]

  • Valve Type: Check
  • Primary Material: ABS Housing with Silicone Disk
  • Number of Ports: 2
  • Connection Description: TubeFitting