Mini-Diaphragm Valve Engineered for Precision Coating in Space-Constrained Applications

SV12

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SET (San-ei Tech)

Diaphragm Valve

The SV12 is a mini-diaphragm dispense valve designed for drip-free coating and consistent shot-to-shot bonding, especially in applications where space is tight or limited. It is suitable for UV-cure adhesives and other low-to-medium viscosity fluids. As the smallest in its class, the SV12 features a compact and lightweight design with a length of 63.2 mm and a weight of 85 g. The valve provides reliable, low-maintenance operation for millions of cycles and ensures no dripping at both the start and stop of the dispense cycle. It is constructed with a SUS303 fluid body and a UHMW® diaphragm.

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Features

  • Compact & Lightweight Design - As the smallest in its class, it has a length of 63.2 mm and a weight of 85 g, making it ideal for applications where space is limited.
  • Drip-Free Performance - The design ensures no dripping at both the start and stop of the dispense cycle.
  • Low-Maintenance Durability - Engineered for low maintenance over millions of cycles.
  • Fluid Compatibility - Designed for consistent shot-to-shot bonding of UV-cure adhesives and other low-to-medium viscosity fluids.
  • Durable Construction - Features a fluid body and air cylinder made from SUS303, with a UHMW® diaphragm.

Resources

Specifications
ItemSpecification
Dimensions0.74" (φ18.9 mm) Diameter × 2.49" (63.2 mm) Length
Weight3.0 oz (85 g)
Material (Body & Head)303 Stainless Steel
Diaphragm MaterialUHMW Polyethylene
Fluid Outlet PortM5 × 0.8 Female
MountingM4 Female
Valve Operating Air Pressure60 – 90 psi (0.4 – 0.62 MPa)
Max. Fluid Pressure70 psi (0.48 MPa)

How the Valve Operates

Air pressure retracts the diaphragm seal, allowing fluid to flow (Figure 1). When the cycle completes, a spring returns the piston and closes the diaphragm to shut off fluid flow (Figure 2).

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