ASCON FETX8327B112

Product Name: ASCO Series 8327 Type NF8327B112 Explosion-Proof 3-Way Solenoid Valve

Manufacturer: ASCO (Emerson Automation Solutions) — note: “ASCON” in query likely refers to ASCO; Ascon also makes temperature controllers but FETX8327B112 matches ASCO solenoid numbering.

Product Category: 3-way pilot-operated or direct-acting solenoid valve, explosion-proof / intrinsically safe

Category: Others

Description

Brief Introduction:

The ASCO NF8327B112 is a high-flow 3-way (Normally Closed/Normally Open convertible) solenoid valve in an explosion-proof enclosure, designed for controlling air, inert gas, water, or light oil in hazardous area applications (Class I Div 1 / Zone 1). The “NF” prefix indicates NEMA 7/9 explosion-proof enclosure with conduit hub.

Technical Specifications:

Valve Series: ASCO 8327 (balanced poppet design)
Function: 3-way (can be piped as Normally Closed or Normally Open); universal porting
Orifice Size: Typically 1/4″ NPT (model-specific)
Port Size: 1/4″ NPT female (body ports)
Media: Air, inert gas, filtered water, light oil (viscosity <300 SSU)
Pressure Range: 0 to 150 psi (air/water, varies by coil & spring); some versions 0 psig minimum differential (direct lift)
CV (Flow Coefficient): Approx. 0.5–1.0 (depends on orifice)
Body Material: Brass (standard); stainless steel optional
Seal Material: NBR (Buna-N) standard; Viton or PTFE optional
Solenoid Enclosure: NEMA 7, 9 (Explosion-Proof), Class I Groups C & D; Ex d IIC T6 (ATEX version available)
Coil Voltage Options: 24 VDC, 120 VAC, 240 VAC (to be confirmed from nameplate; 8327B112 typically 24 VDC or 120 VAC)
Power Consumption: ~6.5 W DC; ~10 VA AC (holding)
Ambient Temperature: –40°F to +131°F (–40°C to +55°C) depending on coil insulation class
Mounting Orientation: May be mounted in any position; solenoid preferably upright
Certifications: UL, CSA, FM, ATEX(for Ex versions), IECEx, CE

Features:

Balanced poppet allows high flow at low pressure drop
Manual operator (push-to-test) available on some variants
PTFE guide rings reduce friction and extend service life
Suitable for 0 psi differential service (direct-acting versions)

Applications:

Petrochemical plants, refineries, offshore platforms, paint booths, grain elevators — anywhere flammable atmospheres exist and pneumatic/process control actuation is needed.

Installation Notes:

Verify hazardous area classification matches valve certification
Conduit seals required per NECArticles 500/501/504
Do not exceed rated pressure differential; install filter upstream for dirty media

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