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ARKA
The ARKA F110FMS is a 4 inch three-way hydraulic diaphragm control valve designed for backwash operations in automatic filtration systems. Constructed from PA plastic with a black finish and weighing 5.5 kg, this valve manages flow direction switching between filtration and backwash modes in disc filter and gravel filter assemblies. The valve operates via hydraulic pressure differential, eliminating the need for external electrical actuation at the valve body. With a maximum pressure rating of 8 Bar and a maximum flow capacity of 80 m³/h, it supports large-scale filtration systems used in agricultural, municipal, and industrial water treatment applications.
Parameter | Specification |
|---|---|
Place of Origin | Fujian, China |
Type | Back-flushing Control Valve |
Brand Name | ARKA |
Model Number | F110FMS |
Material | PA Plastic |
Connections | 4 inch VIC |
Weight | 5.5kg |
Color | Black |
Max Pressure | 8 Bar |
Max Flow | 80 m³/h |
Size | 320×320×240mm |
 |  |
The F110FMS valve uses a flexible diaphragm actuated by line pressure to shift between positions. When pressure is applied to the control chamber, the diaphragm moves to redirect flow from the filtration path to the backwash path. This hydraulic drive design provides smooth flow transitions without water hammer, reducing mechanical stress on connected piping and filter vessels. The PA plastic diaphragm material offers resistance to wear and chemical exposure from irrigation water treatments.
The valve features a two-position, three-way flow pattern. In the filtration position, water flows from the inlet through to the filter vessels. In the backwash position, flow is redirected to drain while the filter element is cleaned by reverse flow from the clean side. This configuration enables automated backwash cycles when paired with a filter controller. The valve body cavity is shaped to maintain a large flow cross-section, minimizing pressure loss during normal filtration operation.
The internal cavity geometry of the F110FMS is engineered to support high flow volumes with low resistance. The streamlined flow path reduces turbulence and pressure drop, contributing to energy efficiency in pump-driven systems. The unique cavity design also ensures complete flow diversion during backwash, directing the full flushing stream through the filter element being cleaned. The valve dimensions of 320×320×240 mm allow for integration into standard filter skid layouts.
The F110FMS valve is a core component in automatic backwash disc filter stations. In multi-unit filter arrays, each filter vessel is paired with a three-way control valve that directs backwash flow when triggered by a pressure differential signal or timer. This configuration allows the filtration system to continue operating during the cleaning cycle, as individual vessels are backwashed sequentially while others remain in filtration service.
For systems incorporating gravel or sand media filters, the F110FMS valve manages the flow reversal required for media bed backwashing. The 80 m³/h flow capacity supports thorough scouring of the media bed, lifting and separating gravel particles to release trapped sediment. The 8 Bar pressure rating covers the operating range of most pressurized sand and gravel filtration systems used in agricultural and industrial water treatment.
In industrial applications such as process water pre-filtration, cooling tower makeup water treatment, and wastewater reuse systems, the F110FMS valve provides reliable flow direction control for automated backwash cycles. The PA plastic construction offers resistance to a range of water chemistries, and the hydraulic actuation method is suitable for environments where electrical components may be exposed to moisture or corrosive atmospheres.
The F110FMS valve connects to the filtration system piping via 4 inch VIC (Victaulic-style grooved) connections, enabling quick assembly and disassembly for maintenance. The valve should be installed with the flow direction matching the arrow markings on the body. Control line tubing connects to the valve control ports and routes to the system's pilot valve or controller. During operation, the valve shifts positions in response to pressure changes in the control chamber, which are managed by the system controller. Regular inspection of the diaphragm and seals is recommended, with replacement intervals determined by operating conditions and water chemistry.
The valve operates using line pressure within its 8 Bar maximum rating. It requires a minimum differential pressure to actuate the diaphragm and shift between positions. Specific minimum pressure requirements depend on the system configuration and backwash flow rates.
Yes, the F110FMS three-way control valve is compatible with both disc filter systems and gravel or sand media filter systems that require automatic backwash functionality. Its 80 m³/h flow capacity supports a range of filter vessel sizes.
VIC refers to grooved-end pipe connections, commonly known as Victaulic-style fittings. This connection method uses a grooved coupling that clamps over the pipe ends, providing a secure joint that can be assembled and disassembled without threading or welding.
