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Ball check valve type CV/F, PN 16, suitable for vertical and horizontal installation, body material: ductile cast iron EN-JS 1049 acc. to DIN EN 1563 (0.7043 DIN 1693), solid ball made of PTFE, epoxy coating, stainless steel nuts and bolts, face to face: DIN EN 558-1, basic series 1, ISO 5752 series 1 (DIN 3202F1), flange connecting dimensions: DIN EN 1092-2 type B, ISO 7005-2 type B (DIN 2533)
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Tech-Taylor Valve
The Tech-Taylor Valve is a dual or triplex free ball check valve used to isolate pumps mounted in parallel.
Features
-Self operating - no actuator required
-Fully rubber lined slurry valve
-Minimal pressure drop
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Noggerath ball check valves have a housing made of spherulitic graphite iron GGG 40 with a 3-fold epoxy coating 150 µm RAL 5017. They can be equipped with balls made of various different materials providing for an optimum adaptation to each respective medium.
The advantages are:
- 100 % free passage
- minor fall in meters
- horizontal and vertical installation possible
- good cleaning effect
- resistant against oil and chemicals
- depending on application also available in special materials
- simple maintenance
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There are various different types of signalling systems to deliver a feed back from the responding bursting disc. There are integrated or refit as well as seperate and individual models.
The basic principle is an intrinsically safe low voltage power circuit that is interrupted when the disc responds. The interruption is caused by tearing a smart wire or thin foil apart or by breaking a special detection pin. This signal can be implemented into the local control panel, monitoring system or just trigger an alert or alarm device. In connection with purpose designed monitoring units and separation amplifiers the use of such signalling devices and membranes is suitable for hazardous areas (Ex).
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BUTTERFLY CHECK VALVE-COMBINED
1. FEATURES
This valve is operated by the actuator of cylinder,motor or etc for the
butterfly valve function.
If this valve is installed in front of pump,this valve can be used for
controling flux, however,at the time of emergency or electricity failure this
valve can be converted to check valve.
2. DESCRIPTION
-. SERVICE TEMP' : -20°C~+150°C
-. SERVICE CONDITION : SEA WATER , OIL , ETC
-. FLANGE RATING : ANSI , AWWA , DIN , JIS(KS) , ETC.
-. SIZE : 50A(2")~4000A(160")
-. FLANGE TYPE : FLANGE
-. ACTUATOR : CYLINDER , MOTOR , ETC.
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Description: This Ultra Miniature low cracking pressure check valve permits free flow in one direction and no (checked) flow in the opposite direction. This valve is specified in many applications because of its very low cracking pressure (typically less than 0.5 psig), its excellent repeatability, and leak-tight peration. Custom variations of barbed and threaded bodies are available. Contact the factory for details.
Material: Brass or 303 stainless steel.
Seals: Silicone. Optional materials: EPDM, Viton® and FFKM (Perfluoroelastomer)
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- with double sided pipe connections
- with screw-in spigot
- standard with Viton-seal and one bar opening pressure
- other variations according to customer requirements
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True Union Ball Check Valves
Y-Check Valves
Spring-Loaded Y-Check Valves
Swing Check Valves
Wafer Check Valves
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CHECK VALVES
ART. 001
The check valve has been one of the strong points of Ratti’s production. In fact, article 001 was the first product developed back in 1974.
This valve is filed from a full sturdy 316L bar of European certified make.
The valves have cylindrical gas female die connections, and the diameters available are as follows:1/4”, 3/8”,1/2”,3/4”, 1”, 1.1/4”, 1.1/2” and 2”.
Inside the valve his piston is supported on two points, in order to keep excellent alignment during any assembling position; these two supports are furnished with special millings to allow the passage of fluid with as least loading losses as possible, in comparison to the classic “drilled disc”.
The standard capacity of the valve is made in certified PTFE but it is also available in silicone, glass, copper or stainless steel upon request.
ART. 048
This valve was projected by Ratti to facilitate the dismantlement and cleaning process, in observation of pharmaceutical and bio-technologic plant regulations.
Innovation is the result of the use of an auto-aligning PTFE piston, and the conic support spring.
They are the only components present inside the valve.
The internal finishing is strictly lower than 0,4 Ra, the external part of the valve is polished and laser-marked indicating the direction of the assemblage, the dimension of the valve, the type of steel used, and the number of the tapping from the steelworks.
The semi-bodies are joined through a Tri-Clamp connection and they are filed from a sturdy 316L stainless steel full bar of European certified make.
The dimensions available are as follows: 1/2, 3/4”, 1”, 1.1/2”, 2” and 2.1/2”.
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Global Manufacturer of Hydraulic Check, Relief, Flow Control and Directional Control Valves along with Quick Release Hose Couplings. Check Valve sizes to 2" and up to 6000 psi (414 bar)working pressure. Steel and Stainless Steel materials are standard with other materials available.
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Lift check valve
ND (nominal diameter): 15-300
other diameters or pressures under request
NP (nominal pressure): 10-420
Technology: Molded or Forged
Principle: Soupape
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VIC : IN LINE CHECK VALVE ( 3/8 , 3/4 , 1-1/4" SIZE)
VC4V : SUB-PLATE/THREADED/CARTRIDGE(3/8-1-1/2" SIZE)
VC5V : FLANGE TYPE ( 3/4, 1, 1-1/4, 1-1/2 & 2")
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Since 1900 when Atwood & Morrill Co., Inc. produced its first valve, it has innovated many advances in the valve industry. The company has developed an impressive range of high technology valves and gained a distinguished reputation for product integrity, performance and dependability.
The range includes:
Cold reheat check valves
Compressor check valves
Controlled closure check valves
Dual Plate check valves
Feedwater check valves
Swing check valves
Testable check valves
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SERIES AP 64 SPRINGLESS ALL WELDED CHECK VALVE Defining the new standard of safety & ultraclean True Springless Design, free of springs or
poppets SS 316L VAR secondary remelt material 3,500 psig rated (241 bar)
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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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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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Application:
To prevent reverse flow, e.g.
- Where two substances (liquids or gases) would mix with one another, preferably installed in both lines
- To prevent columns of liquids from draining out at the bottom when a pump fails
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Check valves
They are used to prevent liquids, gases or steam back flow in pipes. They are also indicated to pumping or vacuum breaking applications.
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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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Features:
The steel check valve features a simple, compact, low cost, low pressure drop design. This design also allows for flexibility in function. It can be scaled to any number of standard and non-standard sizes. All steel construction and Viton seals make it a durable and reliable performer while its easy to manufacture design makes it a cost-saver.
Specifications:
-1.5" size
-Scalable diameter
-Up to 250 psi
-All steel construction
-Yellow Zinc Plating
-Viton Seals
-Back flow hole, if needed
-Quantity Discounts
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WITT gas Non-return Valves protect equipment, pipelines and outlet points. Varying from 0.004 bar - 40 bar (0.06 - 580 psi) and flows between 0.010 m³/h - 3.000 m³/h (0.35 - 105925 SCFH) with any wanted connection. Nearly every application will find a solution when gas return has to be prevented.
Some non-return valves are flashback safe in accordance with EN 730 when natural gas and air are mixed, which can be mounted in nay position and do not require gravity.
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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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Range SPIRAX SARCO is available in version valve sandwich, with disc, leaf, double leaf. The valves with supports or to weld are in version with valve. The diameters go from the DNN 15 with the DNN 600. Ranges metal-metal, EPDM or Viton. Poured out of bronze, carbon steel and stainless steel.
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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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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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Valves, Clappers, Bursting discs
