Can the Throttle valve used in hydraulic systems, type FPSB, be adjusted while the system is under pressure and flowing?

Yes . the Throttle valve used in hydraulic systems, type FPSB Format, can be adjusted while the system is under pressure and flowing, provided normal operating conditions are respected. The valve is designed as an adjustable flow control operated by a knob, allowing regulation of flow in the permitted directions (A â A1 and A1 â A). Its construction (carbon steel body, galvanized; steel knob; NBR sealing) and rated temperature range (â20Â°C to +90Â°C) indicate suitability for in-service adjustment in typical hydraulic circuits. However, observe practical safety and performance considerations: - Make adjustments slowly to avoid pressure spikes, flow shocks and cavitation. - Ensure the valve and seals are compatible with system pressure, fluid and temperature limits. - Wear proper protective equipment and follow system isolation or lockout procedures if required by site rules. - If the system is at extreme temperatures or near component limits, consider reducing load before adjustment. When in doubt, consult the system designer or manufacturer for pressure-rating limits and site-specific instructions.

Does the Throttle valve used in hydraulic systems, type FPSB, require specific maintenance intervals for optimal performance?

Throttle valve used in hydraulic systems, type FPSB Format does not include a manufacturer-specified maintenance schedule in the provided description. For optimal performance, follow these general recommendations: inspect externally for damage, corrosion (body is galvanized carbon steel), and secure knob; check for leaks at seals (NBR) and replace seals showing wear or hardening; verify smooth knob operation and accurate flow adjustment; ensure system fluid is clean and compatible with NBR and operating temperature range (-20Â°C to +90Â°C); periodically flush or replace hydraulic fluid and filters to prevent contamination that wears internal surfaces. Typical intervals: visual inspection monthly, seal/function check every 6â12 months, full service or rebuild every 1â2 years depending on duty cycle and contamination levels. Adjust frequency for heavy use or harsh environments.

Is the Throttle valve used in hydraulic systems, type FPSB, suitable for use with fluids other than hydraulic oil?

Throttle valve used in hydraulic systems, type FPSB Format is designed primarily for use with standard hydraulic oils. Key construction and material details from the description affect suitability for other fluids: - Seals: NBR (nitrile rubber) are compatible with mineral hydraulic oils, water-glycol fluids (limited), and some petroleum-based fluids, but they have poor resistance to ketones, strong acids/alkalis, esters, phosphate esters, and many synthetic fluids. NBR also degrades with prolonged contact with fuels, certain solvents, and high aromatic content fluids. - Temperature range: â20Â°C to +90Â°C limits use with fluids that require lower-temperature flexibility or higher-temperature stability. Some alternate fluids (e.g., certain synthetic hydraulic fluids) may need higher upper temperature resistance than NBR allows. - Materials: Carbon steel body (galvanized) and steel knob are generally compatible with many hydraulic fluids but may corrode if exposed to water-based fluids or aggressive chemicals unless additional corrosion protection is provided. - Flow direction and function: The valveâs mechanical design (flow control with knob, permitted A â A1 flow) is independent of fluid chemistry, but viscosity and lubricity of alternative fluids affect metering accuracy and wear. Conclusion: Throttle valve used in hydraulic systems, type FPSB Format may be used with some fluids other than standard hydraulic oil, but compatibility is limited by NBR sealing and the specified temperature range. Before using other fluids (water-glycol, phosphate esters, synthetic esters, fire-resistant fluids, fuels, solvents, or aggressive chemicals), verify seal and material compatibility with the fluid supplier and/or manufacturer. If incompatible, request versions with suitable seal materials (e.g., FKM, EPDM, PTFE) and corrosion-resistant construction.

Throttle valve used in hydraulic systems, type FPSB

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Additional information

Material	CS – steel (cast iron)

Adjustable throttle valve type FPSB used in hydraulic systems as a flow control element. Flow regulation is achieved via a knob. Permissible flow direction: A → A1, A1 → A. Material: carbon steel, galvanized (body), steel (knob). Sealing: NBR. Operating temperature: from -20°C to +90°C.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
DC-FPSB-04	FPSB throttling valve GW 1/4"	-	300	In stock	Enquiry
DC-FPSB-06	FPSB throttling valve GW 3/8"	-	300	In stock	Enquiry
DC-FPSB-08	FPSB throttling valve GW 1/2"	-	280	In stock	Enquiry

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Adjustable throttle valve type FPSB used in hydraulic systems as a flow control element. Flow regulation is achieved via a knob. Permissible flow direction: A → A1, A1 → A. Material: carbon steel, galvanized (body), steel (knob). Sealing: NBR. Operating temperature: from -20°C to +90°C.