Nordson-EFD-794-Operating-Manual.pdf - 第6页
794 Series Auger Valve | Operating Manual 6 www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide. Specifications NOTE: Specifications and techn…
794 Series Auger Valve | Operating Manual
5www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.
How the Valve Operates
Input air pressure at up to 2.1 bar (30 psi) is applied to the material
reservoir
1
, forcing fluid into the path of the auger. As the auger
rotates, fluid moves along the auger flutes
2
and is forced out
through the dispense orifice. The valve controller regulates the
reservoir pressure, ensuring that there is enough pressure to keep
the valve primed with fluid without forcing it past the auger. The
duration of the dispensing time is controlled by adjusting the time
control up or down until the required deposit size is established, at
which point it is repeated with each initiate cycle.
2
1
Valve Models
• 794-FR: 8 pitch, brush motor, fixed head
• 794-FR-16: 16 pitch, brush motor, fixed head
794 Series Auger Valve | Operating Manual
6 www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.
Specifications
NOTE: Specifications and technical details are subject to engineering changes without prior notification.
Item Specification
Size 237.5 mm length x 31.8 mm diameter (9.35 x 1.25")
Weight 544.0 g (19.2 oz)
Auger speed (dry) 250–500 RPM based on voltage input
Auger pitch 8, 16
Input voltage 10–24 VDC (<10% ripple)
Maximum acceleration 2.0 g (0.07 oz)
Maximum continuous current 240 mA
Input air pressure 0–2.07 bar (0–30 psi)
Maximum fluid pressure 2 bar (30 psi)
Fluid inlet 304 stainless steel, #10-32 UNF x 5/32"
Optional push-in fitting: Polypropylene
Mounting 10-32, low profile
Fluid body 440C hardened stainless steel
Auger 440C hardened stainless steel
Approvals China RoHS
All stainless steel parts are passivated.
RoHS标准相关声明标准相关声明 (China RoHS Hazardous Material Declaration)
产品名称
Part Name
有害物质及元素
Toxic or Hazardous Substances and Elements
铅
Lead
(Pb)
汞
Mercury
(Hg)
镉
Cadmium
(Cd)
六价铬
Hexavalent
Chromium
(Cr6)
多溴联苯
Polybrominated
Biphenyls
(PBB)
多溴联苯醚
Polybrominated
Diphenyl Ethers
(PBDE)
外部接口
External Electrical
Connectors
X 0 0 0 0 0
O: 表示该产品所含有的危险成分或有害物质含量依照EIP-A, EIP-B, EIP-C
的标准低于SJ/T11363-2006 限定要求。
Indicates that this toxic or hazardous substance contained in all the homogeneous materials for this part, according to EIP-A, EIP-B, EIP-C is below the
limit requirement in SJ/T11363-2006.
X: 表示该产品所含有的危险成分或有害物质含量依照EIP-A, EIP-B, EIP-C
的标准高于SJ/T11363-2006 限定要求.
Indicates that this toxic or hazardous substance contained in all the homogeneous materials for this part, according to EIP-A, EIP-B, EIP-C is above the
limit requirement in SJ/T11363-2006.
794 Series Auger Valve | Operating Manual
7www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.
Packing List
The following items are included with the 794 auger valve.
Item Part # Description Qty.
1 — Fitting, 4 mm push-in to luer 1
2 7016761 Urethane tubing, 0.3 m (1 ft) 1
3 — Barrel clamp and knob 1
4 7021981 Brush-motor valve cable 1
5 7021960 Mounting bar and screws 1
6 — 794 valve assembly 1
Not shown 7016129 Adapter, 10cc, 1.8 m (6 ft) 1
Not shown 7016134 Adapter, 30cc, 1.8 m (6 ft) 1
Not shown 7012526 Standard high flow kit (optional stainless steel kit available) 1
Not shown 7019147 8 g valve purge compound 1
Not shown 7021996 794 valve tip kit 1
Not shown — Dot Test Kit Sheet 3
Not shown — Valve purge compound Safety Data Sheet (SDS) 1
Not shown — Valve purge instructions 1
2
3
4
1
5
6