<% dim conn dim connstr 'on error resume next set conn=server.CreateObject("adodb.connection") connstr="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & Server.MapPath("ysaqlz/#uil yinme.mdb") &";Persist Security Info=False;Jet OLEDB:Database Password=zrdzwzsjk" '## MS Access 2000 on Brinkster set conn= Server.CreateObject("adodb.connection") conn.mode=adModeReadWrite conn.ConnectionString=connstr conn.connectiontimeout=30 conn.open %> <% Function chk(ParaName,ParaType) '--- --- 'ParaName:-ַ 'ParaType:-(1ʾϲ֣0ʾϲΪַ) Dim Paravalue Paravalue=Request(ParaName) If ParaType=1 then If not isNumeric(Paravalue) then Response.write "" & ParaName & "Ϊͣ" Response.end End if Else Paravalue = replace(Paravalue, ">", "") Paravalue = replace(Paravalue, "<", "") Paravalue = replace(Paravalue, "&#", "&") Paravalue = Replace(Paravalue, CHR(32), " ") Paravalue = Replace(Paravalue, CHR(9), " ") Paravalue = Replace(Paravalue, CHR(34), "") Paravalue = Replace(Paravalue, CHR(39), "") Paravalue = Replace(Paravalue, CHR(13), "") Paravalue = Replace(Paravalue, CHR(10) & CHR(10), "/PP ") Paravalue = Replace(Paravalue, CHR(10), "BR ") Paravalue=replace(Paravalue,"'","''") End if chk=Paravalue End function Function CutStr(Str, strlen) Dim l, t, c, i l = Len(Str & "") t = 0 For i = 1 To l c = Abs(Asc(Mid(Str, i, 1))) If c>255 Then t = t + 2 Else t = t + 1 End If If t>= strlen Then CutStr = Left(Str, i)&"..." Exit For Else CutStr = Str End If Next CutStr = Replace(CutStr, Chr(10), "") End Function Function ClearHtml(Content) Content=Zxj_ReplaceHtml("&#[^>]*;", "", Content) Content=Zxj_ReplaceHtml("]*>", "", Content) Content=Zxj_ReplaceHtml("]*>", "", Content) Content=Zxj_ReplaceHtml("]*>", "", Content) Content=Zxj_ReplaceHtml("]*>", "", Content) Content=Zxj_ReplaceHtml("]*>", "", Content) 'Content=Zxj_ReplaceHtml(" ","",Content) Content=Zxj_ReplaceHtml("]*>", "", Content) Content=Zxj_ReplaceHtml("]*>","",Content) Content=Zxj_ReplaceHtml("]*>","",Content) Content=Zxj_ReplaceHtml("]*>","",Content) Content=Zxj_ReplaceHtml("]*>","",Content) Content=Zxj_ReplaceHtml("]*>","",Content) Content=Zxj_ReplaceHtml("]*>","",Content) Content=Zxj_ReplaceHtml("]*>","",Content) Content=Zxj_ReplaceHtml("]*>","",Content) Content=Zxj_ReplaceHtml("]*>", "", Content) Content=Zxj_ReplaceHtml("]*>", "", Content) Content=Zxj_ReplaceHtml("]*>", "", Content) Content=Zxj_ReplaceHtml("(javascript|jscript|vbscript|vbs):", "", Content) Content=Zxj_ReplaceHtml("on(mouse|exit|error|click|key)", "", Content) Content=Zxj_ReplaceHtml("<\\?xml[^>]*>", "", Content) Content=Zxj_ReplaceHtml("<\/?[a-z]+:[^>]*>", "", Content) Content=Zxj_ReplaceHtml("]*>", "", Content) Content=Zxj_ReplaceHtml("]*>","",Content) Content=Zxj_ReplaceHtml("]*>","",Content) Content=Zxj_ReplaceHtml("]*>","",Content) Content=Zxj_ReplaceHtml("]*>","",Content) ClearHtml=Content End Function Function Zxj_ReplaceHtml(patrn, strng,content) IF IsNull(content) Then content="" End IF Set regEx = New RegExp regEx.Pattern = patrn regEx.IgnoreCase = true regEx.Global = True Zxj_ReplaceHtml=regEx.Replace(content,strng) End Function %> <% c_title="China Bohai Valve Group Co., Ltd." c_keywords="China Bohai Valve Group Co., Ltd.BR " c_description="China Bohai Valve Group Co., Ltd.BR " c_address="No.88 Gaoying Road, Beizhakou Town, Jinnan District ,Tianjin, China." c_phone=" +86-022-88615222
" c_fax="+86-022-88615222 " c_email=" info@bhvalves.cn" c_postcode="" c_msn="86-022-88615222" c_msn1="" c_msn2="" c_company="China Bohai Valve Group Co., Ltd." c_url="www.bhvalves.cn" %>  <%sub mainhead()%>
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<%end sub%> <% Class Cls_Page Private oConn Private iPageSize Private iRecordCount Private iPageIndex Private sPageParm Private sDatabase Private sField Private sTable Private sCondition Private sOrderBy Private sPKey Private iPageCount Private sTemplate Private sFirstPage Private sPreviousPage Private sNextPage Private sLastPage Private sNumericPage Private iNumericJump Private iMaxrecord Private Pager Private ssql Private Sub Class_Initialize iPageSize = 10 sPageParm = "p" iPageIndex = -1 sDatabase = "access" iRecordCount = 0 sField=" * " sCondition = "" sOrderBy = "" iPageCount = 0 sTemplate = "
{$RecordCount} {$PageSize}/ҳ {$PageIndex}/{$PageCount} {$FirstPage} {$PreviousPage} {$NumericPage} {$NextPage} {$LastPage} {$InputPage} {$SelectPage}
" sFirstPage = "First" sPreviousPage = "Previous" sNextPage = "Next" sLastPage = "Last" sNumericPage = " {$PageNum} " iNumericJump = 3 iMaxRecord=0 Set Pager = new Cls_Pager End Sub Private Sub Class_Terminate() If IsObject(oConn) Then oConn.Close:Set oConn=Nothing Pager = Null:Set Pager = Nothing if session(Pagename)<>"" then session(Pagename)="" if Request.Cookies(Pagename)<>"" then Response.Cookies(Pagename)="" If Application(sPagename) <> "" Then Application.Lock Application(sPagename) = "" Application.Unlock end if End Sub Public Property Set Conn(ByRef o) Set oConn = o End Property Public Property Let PageSize(ByVal i) iPageSize = CheckNum(i,0,-1) End Property Public Property Let PageParm(ByVal s) If Len(s)>0 Then sPageParm = s End Property Public Property Let PageIndex(ByVal i) iPageIndex = CheckNum(i,0,-1) End Property Public Property Let Database(ByVal s) If Len(s)>0 Then sDatabase = LCase(s) End Property Public Property Let Field(ByVal s) If Len(s)>0 Then sField = s End Property Public Property Let Table(ByVal s) sTable = s End Property Public Property Let Condition(ByVal s) If Len(s)>0 Then sCondition = " WHERE " & s End Property Public Property Let OrderBy(ByVal s) If Len(s)>0 Then sOrderBy = " ORDER BY " & s End Property Public Property Let PKey(ByVal s) sPKey = s End Property Public Property Let Template(ByVal s) If Len(s)>0 Then sTemplate = s End Property Public Property Let FirstPage(ByVal s) sFirstPage = s End Property Public Property Let PreviousPage(ByVal s) sPreviousPage = s End Property Public Property Let NextPage(ByVal s) sNextPage = s End Property Public Property Let LastPage(ByVal s) sLastPage = s End Property Public Property Let NumericPage(ByVal s) sNumericPage = s End Property Public Property Let NumericJump(ByVal i) iNumericJump = CheckNum(i,-1,-1) End Property Public Property Let MaxRecord(ByVal i) if isnumeric(i) then iMaxRecord =i end if End Property Public Property Let RecordCount(ByVal i) Select Case i Case -1 If Session("yevg") = "" Then iRecordCount = RowCount() Session("yevg") = iRecordCount Else iRecordCount = Session("yevg") End If Case -2 If Request.Cookies("yevg") = "" Then iRecordCount = RowCount() Response.Cookies("yevg") = iRecordCount Else iRecordCount = Request.Cookies("yevg") End If Case -3 If Application("yevg") = "" Then iRecordCount = RowCount() Application.Lock Application("yevg") = iRecordCount Application.Unlock Else iRecordCount = Application("yevg") End If Case Else If i < 1 Then iRecordCount = RowCount() Else iRecordCount = i End If End Select End Property Public Property Get RowCount() If iRecordCount < 1 Then RowCount = oConn.Execute("SELECT COUNT(*) FROM " & sTable & " " & sCondition,0,1)(0) if RowCount>iMaxRecord and iMaxRecord<>0 then RowCount=iMaxRecord end if Else RowCount = iRecordCount End If End Property Public Property Get ResultSet() if iMaxRecord<>0 then ssql= "SELECT top "& iMaxRecord else ssql= "SELECT " end if ResultSet = Null If iRecordCount > 0 Then Dim Rs,Cm iPageCount = (iRecordCount + iPageSize - 1) \ iPageSize If iPageIndex = -1 Then iPageIndex = Request.QueryString(sPageParm) iPageIndex = CheckNum(iPageIndex,1,iPageCount) Select Case sDatabase Case "mssql" Set Rs=server.CreateObject("Adodb.RecordSet") Set Cm=Server.CreateObject("Adodb.Command") Cm.CommandType = 4 Cm.ActiveConnection = oConn Cm.CommandText="sp_Util_Page" Cm.parameters(1) = sField Cm.parameters(2) = sTable Cm.parameters(3) = sCondition Cm.parameters(4) = sOrderBy Cm.parameters(5) = sPKey Cm.parameters(6) = iPageIndex Cm.parameters(7) = iPageSize Cm.parameters(8) = iRecordCount Cm.parameters(9) = "" Rs.CursorLocation = 3 Rs.LockType = 1 Rs.Open Cm Case "mysql" Set Rs = oConn.Execute(ssql & " " & sField & " FROM " & sTable & " " & sCondition & " " & sOrderBy & " LIMIT " & (iPageIndex-1)*iPageSize & "," & iPageSize) Case Else Set Rs = Server.CreateObject ("Adodb.RecordSet") Rs.Open ssql&" " & sField & " FROM " & sTable & " " & sCondition & " " & sOrderBy,oConn,1,1,&H0001 On Error Resume Next '˴Ϊaccess¼ಢһҳֻһ¼Eofbugһҳʾ2=___= If iPageIndex > 1 And iPageIndex = iPageCount And (iRecordCount Mod iPageSize = 1) Then Rs.AbsolutePosition = (iPageIndex - 1) * iPageSize Else Rs.AbsolutePosition = (iPageIndex - 1) * iPageSize + 1 End If End Select If Not Rs.Eof Then ResultSet = Rs.GetRows(iPageSize) Rs.close Set Rs=Nothing End If End Property Private Function CheckNum(ByVal s,ByVal min,ByVal max) Dim i:i = 0 s = Left(Trim("" & s),32) If IsNumeric(s) Then i = CDbl(s) If (min>-1) And (i < min) Then i = min If (max>-1) And (i > max) Then i = max CheckNum = i End Function Public Function Nav() With Pager .PageSize = iPageSize .RecordCount = iRecordCount .PageParm = sPageParm .NumericJump = iNumericJump .Template ="
"& sTemplate&"
" .FirstPage = sFirstPage .PreviousPage = sPreviousPage .NextPage = sNextPage .LastPage = sLastPage .NumericPage = sNumericPage End With Nav = Pager.Nav() End Function End Class Class Cls_Pager Private iPageIndex Private iPageSize Private iPageCount Private iRecordCount Private sPageUrl Private sPageParm Private sTemplate Private sFirstPage Private sPreviousPage Private sNextPage Private sLastPage Private sNumericPage Private iNumericJump Private Sub Class_Initialize() iPageIndex = -1 iPageSize = 10 iPageCount = 0 iRecordCount = 0 sPageUrl = "" sPageParm = "p" sTemplate = "
{$RecordCount} {$PageSize}/ҳ {$PageIndex}/{$PageCount} {$FirstPage} {$PreviousPage} {$NumericPage} {$NextPage} {$LastPage} {$InputPage} {$SelectPage}
" sFirstPage = "First" sPreviousPage = "Previous" sNextPage = "Next" sLastPage = "Last" sNumericPage = " {$PageNum} " iNumericJump = 3 End Sub Private Sub Class_Terminate() End Sub Public Property Let PageSize(ByVal i) iPageSize = CheckNum(i,1,-1) End Property Public Property Let PageCount(ByVal i) iPageCount = CheckNum(i,0,-1) End Property Public Property Let RecordCount(ByVal i) iRecordCount = CheckNum(i,0,-1) End Property Public Property Let PageUrl(ByVal s) sPageUrl = s End Property Public Property Let PageIndex(ByVal i) iPageIndex = CheckNum(i,0,-1) End Property Public Property Let PageParm(ByVal s) If Len(s)>0 Then sPageParm = s End Property Public Property Let Template(ByVal s) If Len(s)>0 Then sTemplate = s End Property Public Property Let FirstPage(ByVal s) sFirstPage = s End Property Public Property Let PreviousPage(ByVal s) sPreviousPage = s End Property Public Property Let NextPage(ByVal s) sNextPage = s End Property Public Property Let LastPage(ByVal s) sLastPage = s End Property Public Property Let NumericPage(ByVal s) sNumericPage = s End Property Public Property Let NumericJump(ByVal i) iNumericJump = CheckNum(i,-1,-1) End Property Public Property Get Nav() Dim v,x,i,minNumericPage,maxNumericPage,vNumericPage,vSelectPage,vInputPage v = sTemplate minNumericPage = 0 maxNumericPage = 0 vNumericPage = "" If Len(sPageUrl) < 11 Then sPageUrl = "?" For Each x In Request.QueryString If x <> sPageParm Then sPageUrl = sPageUrl & x & "=" & Request.QueryString(x) & "&" Next sPageUrl = sPageUrl & sPageParm &"={$PageNum}" End If vSelectPage = "" If iRecordCount > 0 Then iPageCount = (iRecordCount + iPageSize - 1)\iPageSize If iPageIndex = -1 Then iPageIndex = Request.QueryString(sPageParm) iPageIndex = CheckNum(iPageIndex,1,iPageCount) If iPageIndex > 1 Then sFirstPage = ""&sFirstPage&"" sPreviousPage = ""&sPreviousPage&"" Else sFirstPage = ""&sFirstPage&"" sPreviousPage =""& sPreviousPage&"" End If If iPageCount > 1 And iPageIndex < iPageCount Then sNextPage = ""&sNextPage&"" sLastPage = ""&sLastPage&"" Else sNextPage = ""&sNextPage&"" sLastPage = ""&sLastPage&"" End If If iNumericJump > 0 Then minNumericPage = CheckNum(iPageIndex - iNumericJump,1,-1) maxNumericPage = CheckNum(iPageIndex + iNumericJump,-1,iPageCount) ElseIf iNumericJump < 0 Then iNumericJump = Abs(iNumericJump) minNumericPage = CheckNum(((iPageIndex-1)\iNumericJump)*iNumericJump + 1,1,-1) maxNumericPage = CheckNum(minNumericPage + iNumericJump - 1,-1,iPageCount) Else minNumericPage = 1 maxNumericPage = iPageCount End If For i = minNumericPage To iPageIndex - 1'ǰҳǰ vNumericPage = vNumericPage + Replace(sNumericPage,"{$PageNum}","" & i & "") vSelectPage = vSelectPage + "" Next vNumericPage = vNumericPage + Replace(sNumericPage,"{$PageNum}",""&iPageIndex&"") vSelectPage = vSelectPage + "" For i = iPageIndex + 1 To maxNumericPage'ǰҳԺ vNumericPage = vNumericPage + Replace(sNumericPage,"{$PageNum}","" & i & "") vSelectPage = vSelectPage + "" Next vSelectPage = vSelectPage + "" v = Replace(v,"{$RecordCount}",iRecordCount) v = Replace(v,"{$PageCount}",iPageCount) v = Replace(v,"{$PageSize}",iPageSize) v = Replace(v,"{$PageIndex}",iPageIndex) v = Replace(v,"{$FirstPage}",sFirstPage) v = Replace(v,"{$PreviousPage}",sPreviousPage) v = Replace(v,"{$NextPage}",sNextPage) v = Replace(v,"{$LastPage}",sLastPage) v = Replace(v,"{$NumericPage}",vNumericPage) v = Replace(v,"{$SelectPage}",vSelectPage) v = Replace(v,"{$InputPage}",vInputPage) Nav = v End Property Private Function CheckNum(ByVal s,ByVal min,ByVal max) Dim i:i = 0 s = Left(Trim("" & s),32) If IsNumeric(s) Then i = CDbl(s) If (min>-1) And (i < min) Then i = min If (max>-1) And (i > max) Then i = max CheckNum = i End Function End Class %> 400X Flow control valve-China Bohai Valve Group Co., Ltd.
Welcome to China Bohai Valve Group Co., Ltd. !
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Tel: +86-022-88615222
 Email: info@bhvalves.cn
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Water ValveHome>Products

400X Flow control valve

Product categories:Water Valve
Product display:400X Instruction

I. Product instruction

This kind of valve our company engineering and technical personnel through the introduction of new technology, manufacturing technology and the improvement of the structure, has reached the international advanced level of same type products, streamline body adopts the whole channel design, fluid resistance small, large flow, in the mode of transmission adopts the hydraulic operation, the use of hydraulic pipeline operating the main valve disc up and down automatically, control the main valve mouth opening, the main valve installed in the water distribution channel control flow in the pipeline.First design Alignment upper guide valve and pilot valve with a fixed flow, can be made the flow of the main valve remains the same, even if the main valve upstream pressure changes, also won't affect, In conclusion ,this is the ideal product for water supply, fire protection system and industrial water supply system .

II. Structure

The valve consists of the main valve, pilot valve, needle valve, ball valve, micro filter ,pressure gauge, etc,Due to the pilot valve, needle valve and pressure gauge need to connected the main valve with a catheter , so collectively called catheter control system, as the figure below :

1.Body  2.Nut  3.Sealing Ring  4.Disc  5.Stem  6.Diaphragm Press Plate  7.Diaphragm  8.Bolt   9.Bonnet 10.Ball Valve   11.Nut   12.Nut   13.Spring  14.Pilot valve  15.Ball valve  16.Pressure gauge  17.Adjustment valve   18.Needle Valve

DN Length Main dimension
0.6MPa 1.0MPa 1.6MPa 2.5MPa
mm L D D1 n-d D D1 n-d D D1 n-d D D1 n-d
50 200 140 110 4-14 165 125 4-18 165 125 4-18 165 125 4-18
65 220 160 130 4-14 185 145 4-18 185 145 4-18 185 145 8-18
80 230 190 150 4-18 200 160 8-18 200 160 8-18 200 160 8-18
100 265 210 170 4-18 220 180 8-18 220 180 8-18 235 190 8-22
125 295 240 200 8-18 250 210 8-18 250 210 8-18 270 220 8-26
150 335 265 225 8-18 285 240 8-22 285 240 8-22 300 250 8-26
200 385 320 280 8-18 340 295 8-22 340 295 12-22 360 310 12-26
250 465 375 335 12-18 395 350 12-22 405 355 12-26 425 370 12-30
300 545 440 395 12-22 445 400 12-22 460 410 12-26 485 430 16-30
350 610 490 445 12-22 505 460 16-22 520 470 16-26 555 490 16-33
400 650 540 495 16-22 565 515 16-26 580 525 16-30 620 550 16-36
450 730 595 550 16-22 615 565 20-26 640 585 20-30 670 600 20-36
500 800 645 600 20-22 670 620 20-26 715 650 20-33 730 660 20-36
600 920 755 705 20-26 780 725 20-30 840 770 20-36 845 770 20-39

III、Working principle

When the main valve inlet side pressure respectively into the valve body and the control room (see chart), and the main valve external ball valve10 closed at the same time, the valve is in full close state . When the main valve external ball valve10 fully open, the control room water pressure all drain to downstream low pressure area at this time the main valve fully open position. Adjust the opening of the main valve external ball valve 6, the flow through the water balance of needle valve18 and ball valve10, at this time the main valve in the floating state. Flow control valve is the use of the pressure difference that water through the catheter and needle valve18 into the main valve control room. With the help of the spring of pilot valve control valve 14 Control valve opening, and adjust the upper regulating valve17 makes the main valve opening , let the flow does not exceed a certain value in the pipeline, even if the upstream pressure changes, also won't affect the downstream pressure

IV、Main technical date sheet

pressure PN 1.0MPa 1.6MPa 2.5MPa
Body test pressure 1.5MPa 2.4MPa 3.75MPa
Outlet Pressure range 0.09—0.8MPa 0.10—1.2MPa 0.15—1.6MPa
Pressure character  ΔP2P1 P2×8％ P2×10％ P2×12％

Flow character
ΔP2G2

 P2×15％ P2×20％ P2×25％
Suitable Temperature 0℃—80℃
Suitable Medium Water

V、Installation and adjustment

1.The best installation way of the main valve is horizontal installation, thoroughly remove the clutter of pipe before installation . Pay attention to the main valve body outer flow labeled arrows, should follow the direction installation. After installation shall ensure that no pipe stress on the valve body and valve internal parts.

2.Before the main valve need to install a gate valve and a filter, after the main valve also need to install a gate valve, in order to maintenance.

3.Pilot valve and control system of catheter has been finished in factory before installation and adjustment, such as pilot valve factory set pressure value is not suitable for the requirements, can be through tighten or loosen the top screw to adjust, twist screw clockwise to increase the pressure, the screw counterclockwise twisting to reduce pressure, after the adjustment screw lock nut.

4.The guide valve upper of the main valve can tighten or loosen the upper screw of the regulator to adjust, turn the screw clockwise to reduce the aperture, turn the screw counterclockwise to increase the aperture.

5.The micro filter need to regular cleaning.

6..Must be flushed pipeline thoroughly before water supply.

7.The important water supply management should install by-pass valve.

VI、Main valve maintenance instructions

Water controlling valve is a kind of self embellish body, do not need to add machine by lubrication, in case of damage of the main valve internal parts, please follow the instructions below to remove. (note: the main valve in general easy to loss for diaphragm and gasket, little damage to other internal metal)

1、First closed the front and back gate valve of the main valve .

2、Lossen the piping joint screw on the main valve cover , the pressure in the valve leakage.

3、All the screws removed, including control of necessary copper pipe line and nut.

4、Removed the bonnet and spring .

5、To get off axis core, diaphragm and so on, do not damage the diaphragm.

6、Remove the above things ,check out diaphragm and examine whether the seal is damaged, if no damage do not break down its internal parts.

7、If found damage to the diaphragm or gasket, please loose the nut on the axis core, break down one by one the diaphragm or gasket, comes out to replace the new diaphragm, or seal.

8、To examine in detail the main valve internal seat, shaft core whether have damage, if there are other debris inside the main valve need to clear it.

9、In reverse order will replace the parts after combination, packed the main valve, no Jamming phenomenon of the valve.

10、Please refer to the installation operation considerations , thank you for your cooperation!

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