What Are You Looking For?
The WB521-0001-177 (or 521-0001-177) is a micro solenoid valve (PICO Valve) designed specifically for Willett 400 Series industrial small-character inkjet printers (such as the Willett 430 and 43s) and certain compatible VJ 43s models.
Item No :
WB521-0001-177Order(MOQ) :
1Payment :
via paypal, Western Union, Money Gram, bank, credit guarantee etcProduct Origin :
ChinaColor :
NONEShipping Port :
XiamenLead Time :
5-7daysWeight :
1kg
Q1: What is the primary function of the WB521-0001-177 PICO valve in the machine?
In the ink system of the Willett 430/43s, this miniature solenoid valve primarily controls ink recovery, solvent feed, or the switching required for automatic printhead cleaning during shutdown. It uses the energizing and de-energizing of an electromagnetic coil to precisely control the vertical movement of an internal piston (valve core), thereby directing fluid flow.
Q2: How can I determine if this PICO valve is damaged and needs replacement?
If the printer displays the following alarms or symptoms, this solenoid valve is likely the root cause: Poor recovery (Gutter Fault / Recirculation Fault): The ink jet flows normally after startup, but the recovery tube fails to draw in ink, causing the printhead to overflow; this is usually due to the V11 or V12 recovery valve being stuck. Coil burnout (Valve Coil Open/Short): The circuit board detects an open circuit in the solenoid valve coil, triggering a specific valve fault error code. Cleaning function failure: Pressing the automatic cleaning button results in no solvent flowing to the printhead, indicating the cleaning valve cannot open properly.
Q3: Should the seal ring be replaced when replacing this solenoid valve?
It is strongly recommended to replace it. The base of the PICO valve is typically fitted with a special figure-eight-shaped rubber seal (Part No.: WB-PC1142). Old seals often become deformed or degraded after prolonged exposure to fluids and compression; reusing them makes leaks (ink or solvent) highly likely after the new valve is installed.
Q4: Are there any installation tips for replacing this valve body?
Apply moderate tightening force: Do not overtighten the screws securing the PICO valve, as this can deform the plastic base, strip the screw threads, or crush the seal, leading to leaks. Ensure correct orientation: Carefully check the direction of the fluid inlet and outlet ports during installation (look for directional markings or alignment pins on the valve body). Installing it backward will cause errors in the ink system logic and may even damage the pump.
FB-Y3.XP.YJP0002A is a genuine 7-inch high-resolution LCD display panel assembly designed for Fastjet industrial small-character continuous inkjet (CIJ) printers. This component is primarily used in mid-to-high-end models such as the Fastjet F500 Series (e.g., F560-50SI, F550-60Si, F500Plus), serving as the core display and interactive interface for the equipment's control panel.
Read More
Compatible solenoid valve designed for Hitachi RX-Series, PXR, and PB-Series continuous inkjet (CIJ) printers. It controls the precise opening and closing of fluid pathways for ink, makeup, and solvent circulation across the MV1 through MV7 valve blocks.
Read More
The CB002-1073-002 Type C Phase Detector (also referred to in some supply chains as a phase amplifier or "PC Card Lifier Amp Phase") is a critical electronic control spare part specifically designed for Citronix Ci-series continuous small-character inkjet (CIJ) printers.
Read More
The WB521-0001-177 (or 521-0001-177) is a micro solenoid valve (PICO Valve) designed specifically for Willett 400 Series industrial small-character inkjet printers (such as the Willett 430 and 43s) and certain compatible VJ 43s models.
Read More
The GB-SKN0871 (SKN0871) is a core spare part—specifically a mixer/agitator— Leibinger industrial small-character inkjet printers. Installed within the ink reservoir or mixing tank, it prevents the sedimentation and separation of industrial inks (particularly high-pigment white or yellow inks, or heavy-formulation inks), thereby ensuring absolute uniformity in ink viscosity and color intensity.
Read More
Part number CB003-1199-001 is a quick-connect fitting for Citronix industrial continuous inkjet (CIJ) printers.
Read More
The LDJB-HSN0646 is a nozzle solenoid valve designed specifically for Leadjet industrial continuous inkjet (CIJ) printers; it serves as a core precision control component of the LDJ series printhead.
Read More
The compatible Leibinger MB-PL3304 (or HMN0040) pressure pump check valve assembly (double-headed/bidirectional) is a core maintenance component for the pneumatic and pressure systems of Leibinger continuous inkjet printers (CIJ). This double-one-way valve assembly is primarily installed in M-type and G-type pressure pumps to precisely control unidirectional airflow and liquid flow, maintaining stable ink pressure within the printer chassis.
Read More
Leave A Message
Scan to Wechat :
Scan to WhatsApp :
English
Pусский
Español
Português
العربية
فارسی
IPv6 network supported