<div dir="ltr"><div dir="ltr"><div>Dear All,</div><div><br></div><div> We have been using Dry pumps for turbo pump backing for Sputters, E-beam evaporators. And are planning to swap to oil pump with an anti-suck back valve, whenever required (in case dry pumps go bad).</div><div><br></div><div>We would like to know whether any of you are using oil pumps are being used as backing pump for Turbo / Cryo / DP.<br></div><div><br></div><div>Any advice / suggestions would be greatly appreciated.</div><div><br></div><div>Thank You in advance.</div><div><div><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><br><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:small;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);float:none;display:inline">Thanks & Regards,</span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:small;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255)"><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:small;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);float:none;display:inline">Pradeep Nyaupane</span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:small;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255)"><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:small;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255)"><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:small;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);float:none;display:inline">Technical Superintendent,</span></div><div dir="ltr">Equipment Maintenance Team In-charge, </div><div dir="ltr">IITBNF, <span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:small;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);float:none;display:inline">Electrical Engg Dept </span></div><div dir="ltr"><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:small;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);float:none;display:inline">IIT Bombay, India</span></div><div dir="ltr"><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:small;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);float:none;display:inline">Tel No. 02225764471(O)</span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:small;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255)"></div></div></div></div></div></div></div></div></div></div>