大洋バルブ製作所 List of Products and Services

The "4V Port Flow Control Valve" is an easy-to-adjust V-port type product with no dead zone in the opening. It is a robust valve with four V ports that provides stable adjustments. Equipped with a locking handle, it securely holds the adjustment position. The opening indicator allows you to know the Cv value. 【Features】 ■ Easy-to-adjust V-port type with no dead zone in the opening ■ Robust valve with four V ports for stable adjustments ■ Locking handle securely holds the adjustment position ■ Opening indicator shows the Cv value *For more details, please refer to the PDF document or feel free to contact us.

• Liquid level control/level switch
• Flow Meter
• others

The "BC-SHRT" is a flow gauge that has a built-in wiper capable of cleaning the inner surface of the sight glass. The structure for activating the switch is simple, resulting in minimal head loss and allowing for low flow rate settings. Additionally, the scale on the sight glass serves as a reference for flow rate. This is why it is referred to as a simple flow meter. (A flow rate table corresponding to the scale is attached.) 【Features】 ■ Capable of setting low flow rates ■ Built-in wiper for cleaning the inner surface of the sight glass ■ The wiper can also be used to check the operation of the switch ■ The scale on the sight glass serves as a reference for flow rate ■ The terminal box can rotate, making wiring convenient *For more details, please refer to the PDF document or feel free to contact us.

• Liquid level control/level switch
• Flow Meter
• others

The "LEVEL SWITCH" encapsulates a reed switch and wiring within a pipe-shaped stem, filling the space with magnesium oxide to prevent failures due to vibration and temperature changes. A permanent magnet is incorporated within the float, allowing the magnet to move with the float and activate the reed switch. The lead wires connected to the reed switch are connected to the terminal block inside the terminal box through a header. [Model Numbers] ■ST-MS ■ST-MF ■ST-M *For more details, please refer to the PDF document or feel free to contact us.

• Liquid level control/level switch
• Flow Meter
• others

The "SU4W-SSGF/FSGF" is a sight glass equipped with a wiper that has a flapper operation confirmation mechanism built in. When the spindle is turned with a hexagon wrench, the wiper operates, and the brush wipes the inner surface of the glass while simultaneously moving the flapper. The flapper attached to the brush holder is not affected by its orientation, so there are no restrictions on the installation position. 【Features】 ■ Lightweight and compact standard type sight glass ■ Wiper with flapper operation confirmation mechanism built in ■ Options available for various fluids *For more details, please refer to the PDF document or feel free to contact us.

• Liquid level control/level switch
• Flow Meter
• others

This catalog introduces various internal structures, including the "–SBF type" with internal structure: ball, the "–S type" without internal structure, and the "–SCF type" with internal structure: flapper. It also includes information on model selection and standard specifications. [Contents] ■ Model Selection ■ Standard Specifications ■ DIMENSIONS (Threaded, Socket Weld, Flange) *For more details, please refer to the PDF document or feel free to contact us.

• Liquid level control/level switch
• Flow Meter
• others

The "SU4W-SBM" features a body equipped with a flapper surrounded by a sight glass (cylindrical glass). When fluid flows, one end of the flapper is pushed, causing it to tilt. The greater the flow rate, the larger the tilt, making it a flapper-type sight glass. It has a built-in wiper brush. By simply gripping and rotating the sight glass during use, you can remove water stains and dirt from the inner surface of the sight glass, allowing for a clear view of the fluid. It has reference scale lines, making flow monitoring easy. 【Features】 ■ Guarantees visibility at all times with simple wiper operation ■ Stainless steel body achieves improved performance and low cost ■ Removes dirt just by gripping and rotating the sight glass during use ■ Compact size requires less installation space ■ Simple structure, robust, compact, and lightweight *For more details, please refer to the PDF document or feel free to contact us.

• Liquid level control/level switch
• Flow Meter
• others

The "FC-FY/SU4-FY" is a product equipped with a wiper on the tank's sight glass. Since the wiper mechanism is located inside the flange, there is no reduction in the strength of the sight glass. Additionally, the powerful wiper developed through flow gauge technology removes stubborn dirt. The nozzle at the top of the wiper can also be used for cleaning and spraying. 【Features】 ■ A product with a wiper attached to the tank's sight glass ■ No reduction in the strength of the sight glass ■ A powerful wiper developed through flow gauge technology removes stubborn dirt ■ The nozzle at the top of the wiper can also be used for cleaning and spraying *For more details, please refer to the PDF document or feel free to contact us.

• Liquid level control/level switch
• Flow Meter
• others

The "REM type" is a flow meter with a sight glass that allows for direct visual observation of fluid flow within pipes. Not only can it monitor fluid, but it also allows for flow measurement with a graduated sight glass. It is a dual-purpose sight glass flow gauge. 【Features】 ■ Extensive lineup ■ Support for various flow rates and short delivery times ■ Reliable strong wiper included ■ Handle operation allows for simultaneous cleaning of the glass and checking the operation of the flapper and switch ■ Graduated sight glass for direct reading of flow rate *For more details, please refer to the PDF document or feel free to contact us.

• Liquid level control/level switch
• Flow Meter

The "PL-S1L type" is a flow switch that does not use diaphragms or bellows, so there is no change in operating characteristics due to pressure variations. The paddle sways with the flow, resulting in minimal pressure loss even under high flow conditions, and mechanical failures do not occur. Additionally, it is easy to install and very compact. It is made of plastic, stainless steel, and brass, making it rust-resistant. 【Features】 ■ Easy to install ■ Very compact ■ No change in operating characteristics due to pressure variations ■ Minimal pressure loss even under high flow conditions, with no mechanical failures ■ Made of plastic, stainless steel, and brass ■ Uses a lead switch with excellent environmental resistance *For more details, please refer to the PDF materials or feel free to contact us.

• Liquid level control/level switch
• Flow Meter
• Flow Control

The "FCD-FRHR" is a highly reliable device backed by extensive track records, providing a direct output of 4-20mA from the main unit, eliminating the need for a converter. The HR model can detect small flow rates (10L/min is standard) even with a large diameter, providing contact output. Additionally, the sight glass with a wiper allows for clear visual observation of the flow at all times. Even when there is no flow, the operation of the flapper can be manually confirmed. 【Features】 ■ The straight pipe section is acceptable in 3D both front and back (direct mounting is okay when the partition valve is fully open) ■ There is no time delay in the signal output ■ The PVC coating provides excellent durability ■ It is resistant to noise interference and works well with standard CVVS 2mm² 2-core cables ■ No need for double shielding or specialized cables, making it economical ■ The load impedance is below 600Ω, allowing for ample distance between the unit and the panel *For more details, please refer to the PDF document or feel free to contact us.

• Liquid level control/level switch
• Flow Meter

The "FC-FO-Nf" is a product that is focused on having a sight glass that is clearly visible with wipers. In addition to powerful wipers on both sides, it is lightweight and durable. With the optional protector, it can adapt to harsh working environments. 【Features】 ■ Sight glass that is clearly visible with wipers ■ Powerful wipers on both sides ■ Lightweight and durable ■ Optional protector for adaptation to harsh working environments *For more details, please refer to the PDF document or feel free to contact us.

• Liquid level control/level switch
• Other process controls

The "BC-FMR" is a flow switch that allows for low flow stop (10L/min) of water supply pumps. Due to its low pressure loss, it enables flow monitoring at low water levels and low pressures. Its simple structure results in extremely few failures and easy maintenance. Additionally, when there is no flow, the operation of the switch can be manually confirmed, and the use of a reed switch provides excellent environmental resistance. 【Features】 ■ Low pressure loss allows for flow monitoring at low water levels and low pressures ■ Simple structure results in extremely few failures and easy maintenance ■ Low cost ■ A straight pipe section of 3D before and after is sufficient ■ Excellent environmental resistance due to the use of a reed switch ■ Signal flow does not fluctuate with pressure *For more details, please refer to the PDF document or feel free to contact us.

• Liquid level control/level switch
• Weighing Control
• others

The "FCD-FO-P/FCD-SO-P" is a contactless type flow gauge that can be used in low water level and low pressure locations with minimal pressure loss. The built-in wiper allows you to clean the site glass of water, oil residue, etc., simply by rotating the external handle, ensuring clear visibility during operation. Additionally, the site glass has printed scales, allowing for measurement of the flapper's opening, from which flow rates can be read using a conversion table. 【Features】 ■ Minimal operational fluctuations in response to changes in oil viscosity, making it suitable for locations with varying oil temperatures. ■ The wiper allows for checking the operational integrity of the detection plate (flapper). ■ Stable measurements. *For more details, please download the PDF or feel free to contact us.

• Piping Materials

The "FR/SR type" is a flow gauge that allows for flow measurement and monitoring with low pressure loss, suitable for low water levels and low pressure. It has minimal operational fluctuations in response to changes in oil viscosity, making it safe to use in areas with varying oil temperatures. Additionally, the flow rate can be determined by cross-referencing the scale indicated on the flapper's sight glass with the FLOW CHART. 【Features】 ■ Rational and simple structure with few failures ■ Switches can be accessed at multiple points ■ Visual observation of flow conditions is possible ■ Built-in sight glass wiper ■ Switch adjustments can be made during operation using the adjustment scale graph *For more details, please download the PDF or feel free to contact us.

• Piping Materials