Return-Path: <13brv3@bellsouth.net> Received: from imf18aec.mail.bellsouth.net ([205.152.59.66] verified) by logan.com (CommuniGate Pro SMTP 4.1.5) with ESMTP id 2643961 for flyrotary@lancaironline.net; Mon, 20 Oct 2003 15:51:01 -0400 Received: from rad ([65.80.160.144]) by imf18aec.mail.bellsouth.net (InterMail vM.5.01.05.27 201-253-122-126-127-20021220) with ESMTP id <20031020195053.VSJJ1849.imf18aec.mail.bellsouth.net@rad> for ; Mon, 20 Oct 2003 15:50:53 -0400 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] EWP check valves Date: Mon, 20 Oct 2003 14:50:55 -0500 Message-ID: <002001c39743$7a0aff90$6001a8c0@rad> MIME-Version: 1.0 Content-Type: multipart/related; boundary="----=_NextPart_000_0021_01C39719.9134F790" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.4510 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 This is a multi-part message in MIME format. ------=_NextPart_000_0021_01C39719.9134F790 Content-Type: multipart/alternative; boundary="----=_NextPart_001_0022_01C39719.9134F790" ------=_NextPart_001_0022_01C39719.9134F790 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable IMHO, the standard to beat is McMaster-Carr's 4708K58, a bronze = swing-check valve for a 2" pipe rated for 406degF and up to 200PSI. It costs $58.55, = and unless somebody points out some problem, will probably be the way I go. = It has NPT threads but that should be easy enough to adapt to standard = radiator clamps by simply installing the appropriate adapters on each side. I was just looking at the 1-1/4" valve below. I believe the native hose size of the EWP is 1-1/4", so that seems like a logical size to me. See Jim, I've been looking :-)=20 Rusty (got bigger cooling questions at the moment) =20 =20 =20 Bronze Spring-Loaded Ball-Cone Check Valves =09 =95 Maximum Pressure: 400 psi (Steam: 125 psi) =95 Cracking Pressure: 0.5 psi=20 =95 Maximum Temperature: 350=B0 F =09 Spring-loaded ball cone provides fast seating action. The ball cone = is made of reinforced Teflon and is center-guided. Internal opening is full pipe size, offering minimal flow resistance. Body and seat are bronze; spring is Type 316 stainless steel.=20 Connections: NPT female x NPT female or NPT male (inlet) x NPT female (outlet). =09 Click to change image size=09 Male x Female =09 Pipe O'all Cv =09 Female x Female=20 Male x Female=20 Size Lg. Factor Each Each =09 =09 1/4" 2 1/16" 3 =20 47715K21 $13.89 =09 47715K41 $16.04 =09 3/8" 2 1/8" 5 =20 47715K22 13.89 =09 47715K42 16.04 =09 1/2" 2 5/16" 6 =20 47715K23 13.89 =09 47715K43 16.04 =09 3/4" 2 7/8" 12 =20 47715K24 19.78 =09 47715K44 21.65 =09 1" 3 1/2" 25 =20 47715K25 27.18 =09 47715K45 30.36 =09 1 1/4" 4 3/16" 44 =20 47715K26 47.35 =09 47715K46 52.13 =09 1 1/2" 4 15/16" 65 =20 47715K27 60.40 =09 47715K47 64.98 =09 2" 6" 120 =20 47715K28 98.36 =09 47715K48 108.51 =09 2 1/2" 7" 175 =20 47715K29 202.76 =09 =97=97 =97=97 =09 3" 8 1/8" 265 =20 47715K31 319.71 =09 =97=97 =97=97 =09 ------=_NextPart_001_0022_01C39719.9134F790 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message

IMHO, the standard to beat is McMaster-Carr's 4708K58, = a bronze=20 swing-check valve for a 2" pipe rated for 406degF and up to 200PSI. It = costs=20 $58.55, and unless somebody points out some problem, will probably be = the way I=20 go. It has NPT threads but that should be easy enough to adapt to = standard=20 radiator clamps by simply installing the appropriate adapters on each=20 side.

I was just looking at the = 1-1/4" valve=20 below.  I believe the native hose size of the EWP is 1-1/4", = so that=20 seems like a logical size to me.  See Jim, I've been looking=20 :-) 

Rusty (got bigger cooling = questions at the=20 moment)

 

 

 
Bronze Spring-Loaded = Ball-Cone Check=20 Valves
• Maximum Pressure: 400 psi (Steam: 125=20 psi)
• Cracking Pressure: 0.5 psi =
• Maximum=20 Temperature: 350=B0 F
     Spring-loaded ball cone = provides=20 fast seating action. The ball cone is made of reinforced = Teflon and=20 is center-guided. Internal opening is full pipe size, = offering=20 minimal flow resistance. Body and seat are bronze; spring is = Type=20 316 stainless steel.=20
     Connections: NPT=20 female  x  NPT female or NPT male=20 (inlet)  x  NPT female (outlet).=20
Male x Female=20
Pipe O'all Cv
Female x  Female =
Male x  Female =
Size Lg. Factor Each =   Each =  
 1/4" 2 1/16" 3
 47715= K21  $13.89 
 47715= K41  $16.04 
 3/8" 2 1/8" 5
 47715= K22  13.89 
 47715= K42  16.04 
 1/2" 2 5/16" 6
 47715= K23  13.89 
 47715= K43  16.04 
 3/4" 2 7/8" 12
 47715= K24  19.78 
 47715= K44  21.65 
1" 3 1/2" 25
 47715= K25  27.18 
 47715= K45  30.36 
1 1/4" 4 3/16" 44
 47715= K26  47.35 
 47715= K46  52.13 
1 1/2" 4 15/16" 65
 47715= K27  60.40 
 47715= K47  64.98 
2" 6" 120
 47715= K28  98.36 
 47715= K48  108.51 
2 1/2" 7" 175
 47715= K29  202.76 
—— —— 
3" 8 1/8" 265
 47715= K31  319.71 
—— —— 


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