- Hotline: 091-187-1111
check Valves
Fluitek Orsenigo Valves (FOV) designs and manufactures high-quality Check Valves engineered to ensure reliable flow control and prevent backflow across demanding industrial processes. Built in compliance with BS 1868, API 6D, API 602/ISO 15761, API 6A, API 594, and API 6DSS standards, these valves are available in swing, piston, and dual-plate configurations with bolted or welded bonnet construction. Designed for durability and precision, they provide consistent performance in oil, gas, and process applications. FOV Check Valves feature lightweight discs for rapid closing, shock bumpers for extended service life, and a non-slam design to minimize pressure surges. Their low-pressure-drop, venturi-style flow path enhances efficiency, while powerful springs ensure ultra-fast response with zero reverse flow. Available in a wide range of materials and pressure classes, FOV Check Valves deliver leak-free, fire-safe, and corrosion-resistant performance under high-pressure, high-temperature, and cryogenic conditions. For more information, contact us at 02-168-3193-5, Hotline: 091-187-1111 or Line ID: @multiphase
Swing Type Bolted Bonnet
Fluitek Orsenigo Valves has a very long experience in supplying this type of non return valve. It’s the most used one by the industry, normally coupled with on-off bolted bonnet gate valves and globe valves. Most used standard of reference are API 6D, regular opening, API 594, BS 1868. EN and ISO standard can also be referred to.
Constructions with internal hinge pin are available, together with the more traditional construction with hinge pin inserted from the side. The latter allows application of optional requests, such as position indicator (with or without limit switches), locking systems in the open position (to exclude the unidirectional non return function), anti-slam external counter weights. A rotary anti-slam system applied to the external part of the hinge pin is also available (industry calls it “dash pot system”).
Materials available include carbon steel, low temperature carbon steel, low alloy steel, austenitic stainless steels, austenitic-ferritic duplex stainless steel, nickel alloys. ANSI classes normally available are 150#, 300# and 600#.
Nozzle Type
This type of non return valve is mainly used in gas systems for the protection of the compressors in case of reverse flow. The main features are a non-slam functioning, low pressure drop related to the geometry of the flow path, elimination of the risk of fluid leakages to the environment obtained by trim construction, fully contained in the body. Fluitek Orsenigo Valves line of product can be substantiated with computerized fluidynamic analysis determining the flow behavior at the service conditions indicated by the customer.
Design is normally complying with ASME B16.34. Materials are normally carbon steel, low temperature carbon steel, but other materials (such as austenitic stainless steel) can be used per customer request. Seats are normally with soft inserts. Pressure classes are normally ANSI 600# or 900#. Other pressure classes are anyhow available per specific customer request.
Piston Type Pressure Seal Bonnet
The swing check valves and the tilting disc type check valves are not the only ones used in the high pressure, high temperature lines, typical of the power and steam generation industries. The process industry sometime also uses the herebelow described product. Fluitek Orsenigo Valves can offer a piston type check valve line for high pressure, high temperature service. Construction is with Y-pattern (lifting direction inclined versus fluid centerline). Both forged and cast body construction are available.
Piston is either spring loaded or not, depending on customer choice. Ends configuration is quite normally with butt weld ends. Materials are to ASTM/ASME standards or EN standards, either harmonized or not, ranging from carbon steels, to low alloy steels, to austenitic stainless steels, to austenitic-ferritic stainless steels (duplex), to nickel alloys.
Fluitek Orsenigo Valves offers, as a special added on feature, the possibility of simulating the fluidodynamic behavior of this type of valve, determining its proper functioning at certain specified flow rates, with customer furnished data of fluid conditions.
Swing Type Piggable Bolted Bonnet
The on-off pipeline valves included in Fluitek Orsenigo Valves lines of production (ball valves, through conduit gate valves) need very often to be installed in lines subject to “pigging” operations, either for lines internal periodical cleaning and/or for checking status of corrosion of the pipeline. In this case the non return valves need to present no obstacle to the passing of the pig.
Fluitek Orsenigo Valves has a line of such valves, referred as full opening in API 6D standard. Normal construction is with internal hinge pin, but construction with hinge pin with external insertion is also available. This second construction allows application of additional market requirements, such as position indicator (with or without limit switches), locking systems in the open position, anti-slam external counter weights, rotary anti-slam system (so called “dash pot”).
Materials available are all those used in oil or gas pipelines that include carbon steel, high strength carbon steel, low temperature carbon steel, low alloy steel for extra low temperature environment, austenitic stainless steel. ANSI classes normally available are 150#, 300# and 600#.
Compact Design Check Valve
Fluitek Orsenigo Valves has applied its extended experience in high pressure applications of check valves to a line of small size (1/2” to 2”) forged construction specially designed check valves. Most used configuration is swing type, but piston lift type is also available. Bonnet configuration is normally bolted type but pressure seal type is also available as well as seal welded bonnet.
Materials are either the traditional ASTM/ASME materials, harmonized EN materials or special non-harmonized materials (ranging as usual from carbon steel to low temperature carbon steel, low alloy steel, austenitic stainless steel, austenitic-ferritic duplex steel, nickel alloys). Pressure classes are normally on the high range side (900#, 1500#, 2500#, 4500#). Dimensions are per specific design, depending on customer specifications. Compliance with AD2000 requirements is available.
HOTLINE:
091-187-1111
EMAIL:
sales@multiphase-og.com
LINE ID:
@multiphase