Proportional pressure relief valvesWandfluh AGTel.
DESCRIPTIONDirect operated proportional pressure relief valve as a screw-in cartridge with a thread M22x1,5 for cavity according to ISO 7789.Activated with explosion proof solenoid. Thecartridge body made of steel is zinc coated forcorrosion protection.EEx: in accordance with European standardsEN 50014, EN 50018d: flameproof enclosureGroup II C: (gas group II A, II B)for all applications except miningZone 1: (and 2) explosive mixturespresent intermittentlyEC-type examination certificate:Execution T4:PTB 98 ATEX 1009Execution T6:PTB 98 ATEX 1008CONTENTGENERAL SPECIFICATIONS1HYDRAULIC SPECIFICATIONS..1SYMBOLS.1ELECTRICAL SPECIFICATIONS.2START-UP2CHARACTERISTICS..2 DIMENSIONS/SECTIONAL DRAWING2PARTS LIST.2ACCESSORIES.2TYPE CODEBDBPM22- - G24/ Pressure relief valve Direct operatedProportional explosion proof, execution EEx d II CScrew-in cartridge M22x1,5Standard nominal pressure range:pN = 20 bar 20pN = 100 bar100 pN = 200 bar200 pN = 315 bar315Standard nominal voltage:UN = 24 VDCExecutio SPECIFICATIONS1HYDRAULIC SPECIFICATIONS..1SYMBOLS.1ELECTRICAL SPECIFICATIONS.2START-UP2CHARACTERISTICS..2 DIMENSIONS/SECTIONAL DRAWING2PARTS LIST.2ACCESSORIES.2TYPE CODEBDBPM22- - G24/ Pressure relief valve Direct operatedProportional explosion proof, execution EEx d II CScrew-in cartridge M22x1,5Standard nominal pressure range:pN = 20 bar 20pN = 100 bar100 pN = 200 bar200 pN = 315 bar315Standard nominal voltage:UN = 24 VDCExecution:T1-T4T4T1-T6T6 (on request)Design-Index (Subject to change) Data sheet is valid from design-index 2 onII 2 GEEx d II CM22x1,5ISO 7789FUNCTIONThe valve limits the pressure in port P (1) andreliefs the volume flow to tank port T (2). Theback pressure in T (2) influences the pressurein P (1). When the operating pressure set by the proportional solenoid is reached, thepoppet spool opens and connects the protec-ted line to the tank T (2). These pressure reliefvalves are built according to the differentialspool principle and are therefore very sensiti-ve adjustab datasheets in register 2.13.SYMBOL HYDRAULIC S
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DRAWING2PARTS, T4-20-40, CODEBDBPM22, T6T1-T6, SPECIFICATIONS1HYDRAULIC, CM22x1,5ISO, T6PTB, M22x1,5, AGTel.41, T4PTB, LIST.2ACCESSORIES.2TYPE, 2A67W, T411,7
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