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  • 產(chǎn)品名稱：LD Low Pressure Diaphragm低壓隔膜泵

  • 產(chǎn)品型號(hào)：LD Low Pressure Diaphragm低壓隔膜泵
  • 產(chǎn)品廠商：其它品牌
  • 產(chǎn)品文檔：
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簡(jiǎn)單介紹：
LD Low Pressure Diaphragm低壓隔膜泵 特征: 簡(jiǎn)單設(shè)計(jì) 易于維護(hù) 本質(zhì)**的氣動(dòng)操作 行程長(zhǎng)度和中風(fēng)率調(diào)整 耐腐蝕施工 全部316不銹鋼或聚四氟乙烯接觸介質(zhì)的部件 安裝方便 低于120 PSI的排放壓力推薦
詳情介紹：
LD Low Pressure Diaphragm低壓隔膜泵
特征:
簡(jiǎn)單設(shè)計(jì)
易于維護(hù)
本質(zhì)**的氣動(dòng)操作
行程長(zhǎng)度和中風(fēng)率調(diào)整
耐腐蝕施工
全部316不銹鋼或聚四氟乙烯接觸介質(zhì)的部件
安裝方便
低于120 PSI的排放壓力推薦
LD Low Pressure Diaphragm

Features

 


LDcross
 

FEATURES

  • Simple Design
  • Easy to Maintain
  • Intrinsic Safety of Pneumatic Operation
  • Stroke Length and Stroke Rate Adjustment
  • High Flow Turndown
  • Corrosion Resistant Construction
  • All 316 SS or TFE Wetted Parts
  • Ease of Installation
  • Recommended for discharge pressures below 120 PSI

STANDARD MATERIALS

  • Wetted Parts - 316SS or TFE
  • Pneumatic Section - 316SS
  • Diaphragm - TFE (Teflon)
  • Controller - 316SS
  • Relays - 316SS

DESIGN IMPROVEMENTS

  • Higher Flow Rates than PD Series pump models
  • All TFE diaphragms for all pump sizes
  • TFE-coated o-rings in contact with process fluid
  • Viton® o-rings in contact with air/gas supply
  • Stroke Adjuster locks in place with a simple thumbscrew
  • Stroke Adjuster scale easier to read and set than previous diaphragm pump models
  • Check Valves for 316SS models have TFE soft seats with 316SS balls. (LD200 & 400)
  • Check Valves for TFE models have TFE soft seats with Zirconium balls. (LD200 & 400)
  • Check Valves on LD100 models are Kynar with Kynar soft seats and Zirconium or Ruby Sapphire balls

LD Low Pressure Diaphragm

Operation


POWER STROKE
As the air or gas enters the MOTOR CHAMBER from the controller, the DIAPHRAGM is driven into the fluid cavity of the FACEPLATE, displacing the fluid in the FACEPLATE and extending the RETURN SPRING. As the fluid is displaced, the rise in pressure closes the SUCTION CHECK VALVE and opens the DISCHARGE CHECK VALVE. A precise amount of fluid corresponding to the stroke of the DIAPHRAGM is discharged.

SUCTION STROKE
When the air or gas pressure is exhausted from the MOTOR CHAMBER, the RETURN SPRING assists the DIAPHRAGM in returning to its static position.The retraction of the DIAPHRAGM reduces the pressure in the fluid cavity, thus closing the DISCHARGE CHECK VALVE and opening the SUCTION CHECK VALVE. The fluid cavity is again filled, preparing the pump for another power stroke.


 
Models Diaphragm Size (Inch) Max Volume GPH/LPH Max Discharge Pressure* Air to Fluid Pressure Strokes Per Min (SPM) Volume Per Stroke (cc) Standard Diaphragm Material (STD) Max Air Supply Max Air Useage at Max Vol. Approx Shipping Weight        
                      PSI Bar    
    Simplex PSI Bar         PSI Bar SCF/D SCM/D Lbs. Kg.
LD100-316-TFE 1 0.75 / 2.8 80 5.52 100.80 1-45 1.0 TFE 100 6.9 20 0.64 7.0 3.1
LD200-316-TFE 2 10.0 / 37.8 98 6.76 100.96 1-45 14.0 TFE 100 6.9 255 5.78 9.12 4.1
LD400-316-TFE 4 45.0 /170.3 93 6.41 100.93 1-45 63.0 TFE 100 6.9 1200 27.30 17.25 7.8
LD100-TFE-TFE 1 0.75 / 2.8 75 5.17 100.75 1-45 1.0 TFE 100 6.9 20 0.64 6.0 2.7
LD200-TFE-TFE 2 10.0 / 37.8 93 6.4 100.93 1-45 14.0 TFE 100 6.9 255 5.78 7.25 3.2
LD400-TFE-TFE 4 45.0 /170.3 90 6.2 100.90 1-45 63.0 TFE 100 6.9 1200 27.30 11.5 5.2
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