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Butterfly valve type NKL/F, PN 10, disc/stem unit PFA coated, lug-style body material: ductile cast iron EN-JS 1049 acc. to DIN EN 1563 (0.7043 DIN 1693), centric valve for shut-off and control functions as wafer-style butterfly valve, maintenance-free self-adjusting packing stem seal, epoxy coating, SS disc as an option
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With 350,000 units operating worldwide, WAM® VFS-type Butterfly Valves for powdery and granular materials represent one of the Group's most industrialized products.
For closing bins, hoppers and silos containing powders or granular materials, VFS Butterfly Valves are among the most widely used equipment worldwide.
What used to be custom-built items for specific applications, have been turned by WAM® into a mass-produced industrial product with features that allow extremely versatile use.
VFS Butterfly Valves are used in all types of powder and granular material processing plants where interception of gravity-fed or pneumatically conveyed dry materials is required. They are fitted beneath hoppers, bins, silos, screw or other type conveyors, or to intercept pneumatic conveying ducts. Due to their special design and to the engineering materials used, they represent a particularly cost-effective yet most efficient solution.
Performance & Technical Features - Benefits
- V1FS with top flange and beaded bottom section suitable for fixing of flexible sleeve
- V2FS with identical top and bottom flange
- Pressure-proof up to 0.2 bar (2.9 PSI)
- High-pressure die-cast semi-bodies manufactured from aluminium alloy
- Disc in cast iron, SINT® engineering polymer, stainless steel
- Seals for standard or food-grade application
- Small number of components
- Lightweight and easy to handle
- Interchangeable discs
- Highly abrasion-resistant
- Easy to fit
- Quick maintenance
- Ex-stock delivery
Options & Accessories
- ATEX zone 22 certification
- Stainless steel disc and integral seal food grade version for food industry
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Description:
The CO.RA. SOLE VALVE represents the best of what is available as far as a butterfly valve conceived for flow control of powders and granules is concerned. It is light weight, managable and easy to disassemble and clean.
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1"- 20" (25mm- 500mm) :
Bray Controls is proud to offer a high quality line of
butterfly valves to meet the stringent requirements
of today's applications.
The Series 20/21 valve not only surpasses the high
standards required in sanitary valve applications, but it also
has unique inherent flow characteristics and capabilities.
For High Performance in butterfly valve flow control,
choose the "Engineer's Valve.".
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General description :
MDC Butterfly valves require only one-quarter turn rotation of the handle to go from fully open to the fully closed position. In the 1- 1/3" Mini Del-Seal™ CF flange series, a spring loaded ball bearing becomes seated in an indent providing a positive mechanical stop. All other size valves employ a roll pin stop method. These quick-acting Butterfly Valves feature an improved sealing action. The opening in the body of the valve has been machined at a slight angle to the plane of the flapper. The flapper is set to rotate slightly off-center. On closure, this causes the sealing pressure to be applied more uniformly all around the O-ring. A reliable, positive seal is made and the tendency of previous designs to roughen the surface of the O-ring and eject it from its groove is eliminated.
MDC Butterfly Valves are low outgassing. All internal surfaces are machined from solid stainless steel bar stock. The handle is made of aluminum. A small O-ring on the stem prevents shaft leakage. The valves are offered with a choice of Del-Seal™ CF ultrahigh vacuum metal-seal flanges or ISO Kwik-Flange™ O-ring seal flanges.
Standard Features :
- Quick open / Quick close with positive locks
- Positive Viton® O-ring vacuum seal
- Type 304 stainless steel valve body
- High conductance
- Choice of Del-Seal™ CF or Kwik-Flange™ KF
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Dampers - Butterfly Dampers
The Fabricated range of Rotolok Butterfly Dampers are used extensively in the air and dust handling industries generally in fan systems.
They are normally operated remotely by air cylinders, electric or pneumatic actuators although manual versions through the customary hand lever, handwheel and reduction gearboxes can also be accommodated.
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1. High Tension Coil Spring
Ensures a stable seal at upper and lower gland even at extreme temperatures or when thermal shock occurs
2. Minimum 3mm PFA Thickness
Seam free PFA injection moulding on the seat and disc to a minimum thickness of 3mm prevents permeation of dangerous fluids or gases
3. No Special Gasket Needed
Stable flange sealing performance is ensured by concentric circular grooves on the flange faces thereby eliminating the need for a special gasket when operating under specified temperatures. The wider sealing area also ensures minimum "creep" at high temperature. Flange sealing mechanism is independent from the seating and gland seals ensuring there is no loss of the line fluid.
4. Total Sealing
Valve structure includes primary, secondary and independent tertiary seal - ie. gland packing. There is also a fourth seal of 0-rings on the top/bottom stems - ie. dust seal.
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ARI-ZESA
Application : Cold -and cooling water installations, Heating installations, Drinking water and domestic water, Waste water, Swimming pool-installations, Power stations, Gas installations, Shipbuilding, etc.
Medium : Cold water, warm water, hot water, drinking water, process water, etc.
eClass-No.: 37010301
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Based upon model tests, the lens type and lattice door ( through flow ) type valves are optimized and a minimum flow head loss coefficient of 0.07 can be guaranteed.
This type of valve is mainly used as safety valve or as a turbine inlet valve and pump valve. They are operated by oil hydraulic systems for opening and closing or closing weight and hydraulic pressure for opening. For turbine inlet valves oil pressure can be taken also from the governor hydraulic oil system. The sealing system is of flexible adjustable type - rubber/metal or metal/metal. The lattice door type valves can be also equipped with a maintenance seal. The hydraulic and electric / electronic control system is part of the delivery. Auxiliary equipment like bypass, air and vacuum valve, pipe rupture device, connecting pipes are usually in the scope of supply. Water flow through the valve in both directions is principally possible.
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TYPE: WAFER/ LUG
RATING: PN16/ANSI 150/ JIS 10K
MATERIALS: S.S. 304 / S.S. 316
WCB/ CAST IRON
SIZE: 1.1/2"~24"
OPERATION: LEVER/ GEAR
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Manual and Actuated Butterfly valves, Resilient gate valves and ball valves.
The diversity of fluids networks requires specific closing devices to meet the many specific installations requirements.
As with our other product ranges, we have taken quality and effectiveness as our main priorities.
Focusing on dedicated technologies and integrating the highest performing technical solutions is at the core of our strategy for Danfoss Socla butterfly valves, combining the competitiveness of a standard range, the reliability of our offer and the diversity of solutions to cover a wide range of specific needs.
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The Flowserve Valtek Valdisk control valves are a versatile butterfly control valve available in carbon steel, 316, and other alloys, ANSI Classes 150 through 2500, sizes 2 through 30-inch. A robust and simple in design, the valve has high flow rates, tight shut-off, and low seating and break-out torques.
Features
* Low breakout torque
* Tight shut-off
* Splined shaft for accurate control
* Available in any castable alloyThe Flowserve Valtek Valdisk control valves are a versatile butterfly control valve available in carbon steel, 316, and other alloys, ANSI Classes 150 through 2500, sizes 2 through 30-inch. A robust and simple in design, the valve has high flow rates, tight shut-off, and low seating and break-out torques.
Features
* Low breakout torque
* Tight shut-off
* Splined shaft for accurate control
* Available in any castable alloy
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Rotary Control Valve technology has emerged. Flowserve BX2 Rotary Control Valves offer significant advantages over traditional rising-stem control-valve selections: Compact, Lightweight, Economical, Class VI shutoff or class IV at High Temperatures, Wide rangeability, and low-to-zero environmental emissions.
BX2000 valves are available in Wafer or Lugged-body design with a wide selection of packing designs and seat designs to meet routine as well as the most severe applications.
Ideal for high-volume, low pressure drop flowstreams.
Features
Soft seats, Fire-safe seats, APEX Metal seats, and Tri-Flex high-temperature seats
SIngle, Double, Fire-sealed, or High-temperature packing designs.
ANSI Class 150 or Class 300 bodies
Exotic Alloys are available.
Equal-percent characteristic
Equal-percent characteristic
Low dynamic torque
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Pipe ends are calibrated during the flanging process to create a smooth connection. This ensures a further protection against wear and tear.
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Used for air, gas and oil proportioning control, the MICRO-RATIO® Oil and Gas Valve assemblies have a multiple screw cam assembly. This oil flow valve's assembly provides mechanical adjustment capabilities to the air/fuel ratio at each valve position throughout the entire capacity range of your burner system. This gas valve provides a fully adjustable throttling range and is designed to operate over the extremely wide turndown capabilities of Maxon's modern industrial burner systems.
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2-Way & 3-Way
Wafer and Lug Style Bodies
For Mixing & Diverting, Hot & Chilled Water, Steam & Special Applications
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Butterfly valve with electric actuator, single phase motor, manual override, visual position indicator and two extra limit switches,
- Flange connection
- DN 50 - 100
- Flow medium: Liquid, viscous and gaseous media
- Pressure range: 0 - 16 bar
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What is the definition of cryogenic conditions? Cryogenic conditions occur when the temperature is lower than 120 degrees Kelvin (-153,15 °C). SOMAS supplies valves adapted for cryogenic conditions. We have adapted and modified our ball segment valves and butterfly valves to be able to operate under these extremely low tempereatures.
A great advantage of our cryogenic valves is their excellent ability to prevent icing of the bonnet and stuffing box, since they are fitted with an extended bonnet and the stuffing box is located on top. The cryogenic valves are also fitted with a metal or fibreglass seat. This further improves the functionality and performance of the valve.
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1. FEATURES
The center of rotation is moved form the centerline of the valve body.
The seat and seal design remains conical and on the center.
This design again relies on a frictional, interference seal. but the length
of rotaion over which this friction occurs is reduced, allowing a larger
range of process resistant seat materials to be used.
However these materials must be relatively soft or highly elastic to
prevent jamming.
2. DESCRIPTION
SIZE RANGE : 3" TO 120"
TEMP. RANGE : -100 DEG. C TO OVER 800 DEG. C.
FLANGE RATING : ANSI CLASS 150 TO ANSI CLASS 2500
FLANGE DRILLING : ANSI, MSS, API, JIS, DIN, BS
FACE TO FACE : ISO 5752, ANSI B16.10, DIN 3202
END CONNECTION : WELDING, WAFER, LUG, FLANGED TYPE
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OMAL butterfly valves, available in wafer or lug version from DN 40 to DN 400, designed and manufactured to be used in the most difficult and troublesome industrial fields.
OMAL guarantees TOP-QUALITY production, since all its valves are submitted to hydrostatic, pneumatic and working tests before delivery: you'll be sure to choose the right product!
Therefore, the following pages will provide you with a useful list of all our materials and features to help your choice.
However, our technical department is always at your complete disposal for any information you may need.
If you choose an OMAL valve, you will get ease of use, total reliability, minimum losses, reduced dimensions and weights, quick maintenance and easy applications of pneumatic or electric systems.
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Flanged Butterfly Valves for use in commercial and light industrial applications. Hot and cold domestic water, HVAC, Condenser and chilled water, compressed air and vacuum services.
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Series 835 Butterfly Valve
Jamesbury brand, Series 835, reduced-rated ANSI Class 150, WAFER-SPHERE® high-performance butterfly valves are an excellent, cost-effective alternative for shutoff pressures up to 100 psi. The Series 835 provides the same long-lasting tight shutoff capability, excellent flow characteristics, and long service life as the fully ANSI-rated Series 815. They are available in 30" to 60" designs.
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H.P. Butterfly Valves
The line of K-Lok metal seated, firesafe, high performance butterfly valves conforms to ASME standards for fully rated applications in the marine, water, oil, gas and process industries. Grease or silicone free valves available for special applications such as paint or oxygen systems.
* Size range from 2" – 36"
* Pressure rating to 740 PSI
* Temperature range from -20°F to 1000°F
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Characteristics:
Japan Patent No1769954(40-300mm)
An original design with a spherical inner surface of the body contacting to spherical ends of the disc hub allows its self-alignment. This design ensures prevention of over-run of the disc.
(350-600mm) A spacer ring is provided between each end of the disc hub and the inner surface of the body for self-alignment of the disc. The over-run of the disc is prevented by a protrusion on the inner surface of the body.
Disc with thin but highly stiff rib:
(40-300mm) The disc has a thin, but highly stiff rib.
(350-600mm) The rib of disc has a convex figuration like an end plate of a tank. Either design has successfully reduced thermal expansion and shows a constant sealing capability against changes in temperature or pressure of fluid.
Double Eccentric Structure:
When the disc rotates, it unseats at a small open angle, by its cam effect. It prevents seat abrasion and provides perfect shut-off for a long period.
Seal the flow from both directions:
The valve can seal in reverse flow as well as the preferred direction, and cope with the flow direction changes. The ball lock method is adopted to facilitate the easy replacement of the seat ring. Metal seat and Teflon seat are both quickly replaceable.
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"An unbeatable valve for use in engine exhaust pipes" would be a good description of the butterfly valves and ball segment valves specially designed and developed for this purpose by SOMAS.
The most commonly used and best adapted valve is the butterfly valve . Its simple, robust and maintenance-free basic construction makes it the premier choice for exhaust gas valves. It can be further customized with shaft sealing and/or bearing bushings to further enhance its performance, depending on the engine and fuel used. The ball segment valve is an alternate choice.
Exhaust valves and actuators
Exhaust valves are shipped bundled with actuators and positioners. Most actuators have customized mounting as well as high temperature gaskets in both the actuator and positioner. The positioners are also adapted to withstand the engine vibrations.
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Posi-flate's unique butterfly valve design uses air pressure to expand the seat against the disc, providing even pressure distribution for a bubble-tight seal, every time. Because the seat makes only casual contact with the disc during valve opening and closing, there is minimal disc impingement. This is in contrast to conventional butterfly valves where disc impingement leads to shaving of the seat, decreasing the overall performance and valve life.
Substantially less torque is required to open and close the Posi-flate butterfly valve, thus a smaller actuator can be used resulting in lower overall valve cost.
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Inflatable Seated Butterfly Valves
Series 485, 486, 487, 488
ANSI and Metric Flange Compatible
Performance Features:
Inflatable seat compensates for disc and seat wear
Longer valve life
Minimal seat wear
No disc impingement
Ultra-low torque requirements
Lower actuator costs
More seal contact area
Proven excellent for abrasive and dry solids
Disc designed to prevent material build-up
Double shaft seals
Multiple bearings
Fail-safe monitoring
Temperature limits: -40° to 300° F (-40° to 150° C), varies with application and materials of construction.
Air supply: 115 PSIG (7.9 bar) maximum to seat, varies with application.
Working pressure: Full vacuum to 100 PSIG (6.9 bar), varies with materials of construction.
Operating torque: Varies with application.
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METAL SEATED VALVE
1. Metal Seated Valve in case of Triple Offset Butterfly Type has superior
sealing structure by using the metal seat of laminate or solid which is
combined with valve BODY or DISC.
2. Disc can be operated without jamming in high temperature &pressure.
Available for Wafer, Lug , Flange type.
3. Owing to coating valve body & disc with stellite or special material ,
using this valve is adequate for the extremely inferior line of dust or
sludge i.e.semipermanent structure of this valve needs not exchange of
seat.
4. DESCRIPTION
-. SERVICE TEMP' : -20°C~+500°C
-. SERVICE CONDITION : SEA WATER , OIL , ACID MEDIA , DUST , CHIP, ETC
-. FLANGE RATING : ANSI(150P~900P) , AWWA , DIN , JIS(KS) , ETC.
-. SIZE : 50A(2")~3000A(120")
-. FLANGE TYPE : WAFER , LUG , FLANGE , WELDING TYPE.
-. ACTUATOR : GEAR , LEVER , MOTOR , AIR CYLINDER , CYLINDER , ETC.
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Short description:
The Apollo® 141/143 Series Valves are ideal for use in Industrial and HVAC/Mechanical applications. The 141 Series is a wafer style valve and the 143 Series is a companion lug style.
FEATURES
Compatible with ANSI 125# & 150# Flanges
- ISO 5211 Top Plate Allows Choice of Apollo® Pneumatic Actuators and manual operators
- Square drive for direct mounting actuators (2;'-12") Conforms to MSS SP-67
- 143 Series Suitable for End of Line Service to Rated Pressure
- 3" -24" meet performance requirements of
- AWWA C-504
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