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Type:
Check valves (design according to BS1868, API 6D or ANSI B16.34)
Check valves for Navy application
Jacketed check valves
Cryogenic check valves
Pressure sealed cover check valves
Dual plate wafer check valves
Custom made check valves
Design: BS1868 - ANSI B16-34 – API 6D
Nominal size range: DN15 (1/2”) to DN500 (20”)
Pressure rating range: PN10/PN16 – Class 150 to Class 2500
End connections: flanges, socket welding, Hub ends,…
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DESCRIPTION
The Apollo® 61-100 Series Ball Cone® check valves offer reliable protection against reverse flow and exceptional resistance to chemicals and corrosion using proven ASTM quality materials made in the USA.
FEATURES
- 0.5 PSI Opening Pressure Standard
- Bronze Sizes %" to 3"
- Tight Shut-off With Liquid Media
- Flow Straight-through Design Efficiency
- RPTFE Ball Cones for Chemical Resistance
- Made in the USA
- Canadian Registration Number 0C11218.5C
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Check Valves, PN16, DIN EN 3845-2
Bronze body, screwed cap in brass
Part No. 05011.X.0000
Female thread connection (G) acc. to ISO 7-1 Rp
Disc with FPM seal
Part No. 05012.X.0000
Female thread connection (G) acc. to ISO 7-1 Rp
Disc with PTFE seal
Available options - on request only:
* Disc with EPDM seal
* Disc with NBR sea
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Design utilizes all PTFE components and no o-ring to provide superior chemical resistance and purity.
Polished sealing surfaces provide long life and superior sealing characteristics.
Tongue and groove external seal eliminates o-rings and compatibility issues.
Machined PTFE spring provides low cracking pressure.
Numerous end configurations available which reduces connections, mounting space and overall cost.
Specifications
Wetted Materials
PTFE
Non-wetted Materials
PFA, PVDF, ETFE
Cracking Pressure
0.25 PSIG (.017 bar) - 0.75 PSIG (8.3 bar)
Back Check Seal Pressure
5.0 PSIG (.35 bar)
Pressure Ranges
0 - 120 PSIG (8.3 bar) See Cracking Pressure Chart in literature pdf.
Ambient Temperatures
32° - 212° F (0° - 100° C) for Style 1
50° - 212° F (10° - 100° C) for Style 2 and 3
60° - 212° F (15.5° - 100° C) for Style 4 and 5
Fluid Temperatures
32° - 266° F (0° - 130° C) for Style 1
50° - 266° F (10° - 130° C) for Style 2 and 3
60° - 266° F (15.5° - 130° C) for Style 4 and 5
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CAR967
Pipelines
CuAl or CuNi non-return valve for piplines dedicated to oxidising gas systems such as oxygen or neutral gas systems; 0 to 40 bar; orifice diameter 52 to 220 mm; all positions for installation
Brand :
Merobel
Working pressure :
40.00 bar
Gas :
Inert gases - Oxygen
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Non-return valves are essential devices for the satisfactory operation of high pressure piston pumps. Essentially, the non-return valve is a one-way valve that allows a liquid to flow through it in one direction but completely prevents its movement in the opposite direction
Standard Version Nominal width: DN 6 to DN 50
Rated pressure: Up to PN 260 bar
Operating temperature: -30 to +80°C
Operating medium: Gases and liquids
Installation position: Any
Connections: Threaded connections
Materials Body: 2.0967
Insert: 2.0967
Cone: 2.0958
Spring: 1.4310 coated
Seat seal: PA6.6
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ARI-Check valve
Application: Industry, powerstations, flue gas purification plant, processing technology, gas supply, vapour facilities, recycling facilities, vacuum facilities, hot water, heating technology, district heating, thermal oil applications, general plant manufacturing, etc.
Medium: Steam, gases, liquids, etc.
Application (Stainless Steel): Recycling facilities, chemical industry, hospital technology, process water installations, installations with aggressive media
Medium (Stainless Steel): Process water, aggressive media, etc.
eClass-No.: 37010801
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SWING CHECK VALVES,
SS316/SS304/WCB BODY,
FLANGED END OR THREADED END,
PRESSURE: ANSI150/300, PN16/PN40;
OR 200WOG
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Applications:
- Domestic hot & cold water
- HVAC (condensors, chilled water, hot water heating)
MATERIALS & CONSTRUCTION
- Two-piece bronze body
- Stainless steel stem
- Resilient disc (TFE)
- 200 PSI non-shock cold working pressure
- 250°F maximum operating temp.
Design criteria
- Conforms to MSS SP-80
- Inline lift type
- Spring actuated
- Dezincification resistant
- For connection to rigid copper tubing manufactured per ASTM B88, condition H (hard drawn). Not compatible with annealed (dead soft) copper
tubing
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* Simple installation to any 1/8” VGS™ accessory port.
* Prevents vacuum from being pulled through blow-off lines, which means faster response and completely independent VGS units.
* Suitable in applications where cleaning of the lines or suction cup filter is necessary.
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In addition to the main valve families mentioned above, ROSS EUROPA's line of pneumatics includes:
Check valves
Speed control valves
Manually operated valves
Mechanically operated valves
A broad line of accessories
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Complete range of check valves available to suit any application;
* Effective minimal maintenance free solutions
* Preventing reverse flow in pipelines
* Compact design
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Presenting check valves for steam and other fluids. Check valves with disc and spring construction that assures performance with installation in either vertical or horizontal pipelines. Automatic valves for preventing backflow.
Operating Pressure Range: 0 - 425 psig
Operating Temperature Range: -148 - 662 °F
Reliable Backflow Prevention
Mechanically prevents backflow.
The valve seal provides an extremely tight seal.
Easy to Use
There are no restrictions on installation orientation (horizontal, vertical).
After the valve has closed, it opens again at the slightest pressure differential.
Long Service Life
TLV's unique center-guided disc (CK3MG, CKF3MG, CKF3RG) offers greater durability.
Application Areas
Suitable for use in the following applications:
CK3M, CKF3M, CK3MG, CKF3MG (metal valve seat) - steam.
CK3T (PTFE valve seat) - steam, hot water.
CK3R, CKF3R, CKF3RG ( Nitril or Fluorine rubber valve seat) - non-hazardous gasses, air, hot water, water, etc.
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The compact wafer-style design and round unobstructed port of the Tyco Prince Wafer-Check Valve tackle many tough applications throughout industry. Offering elastomer and polymer seating materials, it is heavily used in chemical, petrochemical, water/waste water, mining, HVAC systems, power, pulp and paper, refrigeration, agriculture, oil production and most other industrial applications. Available 2" through 48", Prince wafer check valves significantly minimize the required piping support, assuring low installation and maintenance costs when compared to traditional full-bodied check valves. Adaptable with outside lever and weights, internal or external springs, the Prince Wafer Check can solve many specific application problems.
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Soft-Seat Copper Check Valves:
Parker's Soft-Seat Copper Check Valves are used in refrigeration and air conditioning systems to maintain flow in only one direction. Internal components seat or "check," preventing flow back through the valve. These products are often used in conjunction with dryers or strainers to ensure unidirectional flow, with compressors to prevent liquid refrigerant from flooding back to the inlet, or in system lines to redirect flow to another circuit.
Application:
• Refrigeration and air conditioning systems.
Features and Benefits:
• Soft-seat valve features a Neoprene™ o-ring that seals to a metal seat for low refrigerant leakage (10cc/min. compared to traditional check valves with 750 cc/min.).
• Brass piston seat and steel piston provide corrosion resistance and durability.
• Sweat connections in a variety of sizes provide for easy installation and simplified brazing.
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The Selas automatic firecheck, or flame arrestor, is basically a check valve which is closed by actuation of a thermal release. Components include a shut-off valve, check valve, corrugated fire screen, and a thermal latch. In normal operations, the combustible fuel/air mixture passes freely through these components. If flashback occurs,the sudden increase in back pressure will cause the check valve to close and momentarily interrupt the forward flow of the fuel/air mixture. The reduced flow and the internal configuration of the firecheck allow the backward-traveling flame to stop at the fire screen. The tiny holes and chilling capacity of the fire screen hold the flame on the screen until the thermal element is heated and releases the latch to close the shut-off valve. This valve-closure stops fuel/air flow and prevents the flashback from proceeding past the firecheck. The shut-off valve remains closed until manually reset.
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INTRODUCTION
One-way valve for in-line use.
Suitable for any type of hydraulic system using
liquids that are not highly viscous. The standard
types are in zinc plated carbon steel and are
therefore especially suitable for non-corrosive mineral
based oils and liquids.
FEATURES
Standard types: Good pressure / flow characteristics, see graphs. Valve body in zinc plated carbon steel. Piston in carbon steel. Internal spring in silicon steel - stabilized. Cracking points 5 psi and 65 psi are standard,
other values on request.
ALTERNATIVE USES
As a pressure sequence valve by changing the
internal spring to an appropriate 'cracking point' value.
For flow restrictor check valves a central bleed hole
can be provided, sized to customer requirements.
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APPLICATION
Manually operated check with flow limiting
Non return valves or bypass low pressure reliefs
L/min
(US GPM) bar (PSI) PRODUCTS
12
(3) 350
(5075) FPR1/4
30
(8) 350
(5075) FPR3/8
45
(12) 350
(5075) FPR1/2
85
(22) 300
(4350) FPR3/4
140
(37) 250
(3625) FPR1
220
(58) 250
(3625) FPR11/4
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Equipped with drop weight and hydraulic damper it achieves best function properties. Even the combination of rotary process and check valves belong to the recent delivery program.
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The STAUFF hydraulic accessories programme has
been carefully designed to offer a range of components
suited to the demands of building hydraulic
systems in most industrial and mobile applications.
Whether you require simple filler breathers or precise
electrical level switches, flow control valves or
complete filter units; the STAUFF accessories range
should provide you with the choice you need.
At STAUFF we are aware of the ongoing development
and innovation within the hydraulic industry.
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The Classic Lee Chek is offered in three basic configurations:
o Ø 0.187 and a 0.250 inch diameter axial flow ball-type designed for 3,000 psi systems and available screened and unscreened, forward and reverse flowing.
o Ø 0.187 and a 0.343 inch diameter with convenient side exit porting and enhanced silt resistance. The 0.187 inch diameter is available screened and unscreened, with forward flow only for 4,000 psi systems. The 0.343 inch diameter is available unscreened, with reverse flow only for 5000 psi systems.
o And Ø 0.187 inch diameter Zero Leak, poppet-style, axial flow design with a choice of three different elastomers. Available screened and unscreened, forward and reverse flowing for 3000 psi systems.
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* Check valves
o with threaded connector - Steel DN 4 - DN 50
o Full flow, no reduction
o Custom orders on request
o All dimensions subject to change without notice
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Check valves are poppet style elements that allow free flow in one direction while preventing flow in the reverse direction. They can be used to isolate portions of a hydraulic circuit or to provide a free flow path around a restrictive valve.
Types:
Nose to Side Checks
Soft Seal Check Valve
Side to Nose Check Valve
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FEATURES:
- EVERY PC IS TESTED for leakage.
- OPTIONAL O’RING PORTS to eliminate leakage.
- STEEL BALL will not jam, lock or seize and will always open.
- DELRIN CHECK SEAT for zero leakage.
SPECIFICATIONS:
- Pressure rating 3000 psi (207 bar).
- See creating a model code for flow capacity and port sizes.
- Weighs 0.7 lbs (0.3 kg).
- 30 Micron Filtration Recommended.
MATERIALS:
- Cast Iron Body
- Buna N O’Rings
- Chrome Alloy Steel Ball
- Delrin Check Seat
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Cepex designs and manufactures an extensive family of check valves that can be used for a wide range of applications. These valves provide an exact and reliable control of fluids, and have been designed to offer maximum modularity and flexibility.
Spring check and ball versions are available in PVC-U and Corzan CPVC. As with other Cepex valve products, check valves are available in accordance with several dimensioning standards (Metric, BSP, ASTM, NPT, British Standard, JIS...).
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Liquids, steam and gases - SOMAS check valves are suitable for all of them. This valve is designed and made for clamping between flanges. SOMAS provide two types, with or without a spring, both made from stainless steel to meet the demands of our customers.
High capacity and short closing time are the check valves great advantages. The closing time is short due to the seat angle in the body, which makes the check valve especially well suited for liquids, steam and gases. Another advantage of the check valve is that it can easily be disassebled by the customer for cleaning or shaft replacement.
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Protection of drinking water networks against backflow of polluted water : backflow preventers, other protection systems, pressure reducers and water meters.
Water is the most precious of our natural resources. Whatever its destination, domestic, urban, agricultural or industrial, the water we use every day is distributed through an increasingly complex network of interconnected pipelines.
The risk of pollution coming from backflow ( backsiphonage or backpressure) is even greater when the different pipelines networks are closely interconnected.
The choice of a suitable protection system must then be made in relation to the level of risks induced by the fluids being used and transported.
Danfoss Socla is today the only European manufacturer to offer such a vast range of protection devices for every level of risk. Our valves -which ensure complete safety- are presented by descending level of risk.
Danfoss Socla offers also a complete range of pressure reducing valves in order to protect the water network against the risk of overpressure.
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Check valves allow the flow of refrigerant in one direction only by automatically closing when fluid attempts to flow in the opposite direction. The check valves are used generally used to protect compressors, pumps but also other apparatus from damage by liquid refrigerant.
Several constructions of check valves are available. Revalco chooses for a spring loaded valve construction of which, when opened, the valve body is completely outside the main stream.
Advantages:
- Cage construction NB 100-150 (4"-6") prevents hammering or whistling as a result of too large/small valve
- Standard supplied as a PN40 design. (on request PN52).
- High Kv values resulting in low pressure drops.
- Modular buid up stop-, regulating-, check- and stop check valves makes possible chang-over in existing installation.
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TYPE DISC, DUAL PLATE, SWING, TILTING, DYNAMIC
SIZE RANGE 1-1/2” TO 80”
BONNET TYPE BOLTED, PRESSURE SEAL, Y-PATTERN
MATERIAL WCB, WC6, WC9, C5, C12, CF8, CF3, CF8M, CF3M, CF8C, CF10, DUPLEX,
INCONEL, MONEL, HASTELLOY
PRESSURE RANGE CL 150 TO 4500
ENDS SCREW, SOCKET WELD, BUTT WELD, WAFER, LUG
FLANGE: ANSI, JIS, DIN
OPERATOR DYNAMIC, DASH POT, HYDRAULIC, LEVER WEIGHT
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