Model:

WSJE8327B122 24DC

WSNF8327B102 24DC

 

• Basic Parameters

Brand / Series: ASCO, 8327 (327) Series

Function: 2-way 3-way (3/2), single-actuated, normally closed (NC)

Actuation Type: Direct-acting, balanced lift valve structure (zero differential pressure start)

Connection Specification: 1/4″ NPT female (DN8)

Body Material: 316L stainless steel (corrosion-resistant)

Sealing Material: FPM (fluoroelastomer), optional FVMQ (low temperature)

Weight: Approximately 3.75 kg

 

• Electrical Parameters (24VDC)

Rated Voltage: 24 V DC (standard)

Power: 1.8 W (low power consumption)

Insulation Class: H grade (180°C)

Protection Rating: IP66/IP67 (dustproof and waterproof)

Explosion Proof Rating: Ex db IIC T6 Gb (Zone 1/2)

Ex tb IIIC Db (Zone 21/22)

Compliance with ATEX, IECEx, GB3836 certifications

Safety Rating: SIL3 (TÜV/Exida certified)

 

• Fluid and Pressure

Working Medium: Air, inert gases, light oils, water, ethylene glycol solutions

Viscosity Range: ≤65 cSt

Working Pressure: 0–10 bar (0–1 MPa) (can start at zero pressure)

Port / Orifice: 1/4″ NPT, orifice 5.7 mm

Flow Coefficient: Cv=0.43 (Kv=0.37)

 

• Temperature and Environment

Medium Temperature: -20°C ~ +120°C (FPM sealing)

Ambient Temperature: -40°C ~ +60°C

Response Time: 75–100 ms

 

• Structural Features

Dual-chamber explosion-proof coil: moisture-proof, corrosion-resistant, slows breathing effect

PTFE guide ring + graphite packing seal: low friction, no sticking, long service life

Built-in freewheeling diode: suppresses reverse voltage spikes, protects coil

Manual reset optional: anti-disturbance, under-voltage protection type

 

• Model Comparison

WSJE8327B122: 24VDC, explosion-proof, 316SS, 1/4″NPT, NC

WSNF8327B122: Same parameters, standard explosion-proof coil (not dual-chamber)