Flow - diaphragm / limiter

Transcription

1 GHM Messtechnik GmbH Hans-Sachs-Str Regenstauf Germany Fon +49 () Fax info@ghm-messtechnik.de Flow - diaphragm / limiter System Flow Diaphragm limiter Nominal widths DN 15 - Controlled quantity l/min Water Oils Max. 2 bar Temperature..3 C Applications Central feed Water treatment Irrigation Sanitation installations pi-ho-sm-flow-flow_diaphragm_ limiter_e V1.- 1

2 GHM Messtechnik GmbH Hans-Sachs-Str Regenstauf Germany Fon +49 () Fax info@ghm-messtechnik.de Function and benefits The medium creates a differential on the diaphragm which causes metal or elastomer elements to be pressed together. This creates a reduction in cross-section which restricts the flow to a fixed value. Stainless diaphragm Elastomer diaphragm 1 bar 8 bar 1 bar 8 bar Device overview Device Nominal width Connection Controlled value l/min Housing 1..3 Brass or KM-...G DN Female thread G 1 / 2..G 3 / 4 stainless Diaphragm stainless PN 2..3 C Water, oils Page 3 KM-...A DN 2 - Male thread G 3 / 4 A..G 3 A Brass or stainless stainless -..2 C Water 4 WK DN Female thread G 1 / 2, G Brass or stainless Elastomer PN..65 C Water 5 WP DN 15 Female thread G 1 / Brass Elastomer PN C Water 6 WT DN 15 Female thread G 1 / Brass Elastomer PN.. C Water 7 Errors and technical modifications reserved. 2 pi-ho-sm-flow-flow_diaphragm_ limiter_e V1.-

3 Flow limiter KM-...G Dimensions and weights G Nominal width Type L SW X kg G 1 / 2 DN 15 KM-15G G 3 / 4 DN 2 KM-2G Metal construction The constant flow is created by two crossways stainless spring plates which close or open an annular gap located behind them to a greater or lesser degree, according to the flow value Nominal width DN Process female thread G 1 / 2..G 3 / 4 connection Controlled values Tolerance Controlled value G 1 / 2 G 3 / 4 Tolerance 1 l/min ±.2 l/min 2 l/min ±.2 l/min 3 l/min ±.4 l/min 4 l/min ±.4 l/min 6 l/min ±.5 l/min 8 l/min ±.5 l/min 1 l/min ±.7 l/min 12 l/min ±.7 l/min 16 l/min ±1.2 l/min 2 l/min ±1.2 l/min 25 l/min ±1.5 l/min 3 l/min ±1.5 l/min Differential bar PN 2..3 C..3 C water, viscous media up to 3 mm²/s medium-contact Brass construction: CW614N nickelled, 1.431, Stainless construction: 1.431, 1.431, see table "Dimensions and weights" Installation as desired KM - G For combination option, see table "" 15 DN 15 - G 1 / 2 2 DN 2 - G 3 / 4 G female thread M brass K stainless 1 1 l/min 2 2 l/min 3 3 l/min 4 4 l/min 6 6 l/min 8 8 l/min 1 1 l/min l/min l/min 2 2 l/min l/min 3 3 l/min Options Inlet side, female thread / outlet side male thread Special values Selection Bypass Specify direction of flow, medium, and controlled value. For viscous media specify viscosity,, and medium (e.g. ISO VG 1) (enquire about controlled value). pi-ho-sm-flow-flow_diaphragm_ limiter_e V1.- 3

4 Flow limiter KM-...A medium-contact Installation water Brass construction: Stainless CW614N nickelled, construction: 1.431, 1.431; , 1.431, ; see table "Dimensions and weights" as desired Dimensions and weights Male thread Metal construction The constant flow is created by two crossways stainless spring plates which close or open an annular gap located behind them to a greater or lesser degree, according to the flow value. The controlled value results from the addition of the individual control inputs Nominal width DN 32.. Process male thread G 3 / 4 A..G 3 A connection Controlled values Connection Controlled Control inputs value G 3 / 4 A l/min 1 G 1 / 2 A l/min 2..3 G 2 A 3.. l/min 3..4 G 2 1 / 2 A l/min 5 G 3 A l/min 6..7 Example: The controlled value of 55 l/min is achieved using a limiter with two control inputs of 3 l/min + 25 l/min. Control inputs individual controlled values for the control inputs 1 l/min 6 l/min 16 l/min 2 l/min 8 l/min 2 l/min 3 l/min 1 l/min 25 l/min 4 l/min 12 l/min 3 l/min Tolerance to 2 l/min: ±15 % of nominal value from 3 l/min: ±1 % of nominal value Differential 2..1 bar..2 C..2 C G Nominal width Type H Control inputs kg G 3 / 4 A DN 2 KM-2A G 1 / 2 A DN 4 KM-4A G 2 A DN 5 KM-5A G 2 1 / 2 A DN 65 KM-65A G 3 A DN KM-A KM - A 2 DN 2 - G 3 / 4 A 4 DN 4 - G 1 / 2 A 5 DN 5 - G 2 A 65 DN 65 - G 2 1 / 2 A DN - G 3 A A male thread M brass K stainless l/min 2..9 l/min l/min l/min l/min Options Special values Specify direction of flow, medium, and controlled value. For viscous media specify viscosity,, and medium (e.g. ISO VG 1) (enquire about controlled value). 4 pi-ho-sm-flow-flow_diaphragm_ limiter_e V1.-

5 Flow limiter WK Dimensions and weights G Nominal width Type L SW X kg G 1 / 2 DN 15 WK-15G G 3 / 4 DN 2 WK-2G G 1 DN 25 WK-25G Mechanical flow limiter for fluid media. If the volume flow is tending to increase, an elastomer is compressed. This achieves an almost constant flow value. Nominal width DN Connection type internal thread G 1 / 2..G 1 Controlled values 3 l/min 6 l/min 1 l/min 15 l/min 5 l/min 8 l/min 12 l/min Differential 2..1 bar Tolerance ±15 % PN..65 C..65 C water media-contact Installation Brass construction: CW614N, POM, NBR, Stainless construction: 1.435, POM, NBR, see table "Dimensions and weights" as desired WK - G 15 DN 15 - G 1 / 2 2 DN 2 - G 3 / 4 25 DN 25 - G 1 G female thread M brass K stainless 3 3 l/min 5 5 l/min 6 6 l/min 8 8 l/min 1 1 l/min l/min l/min Options Inlet side, internal thread / outlet side external thread Special values Selection Bypass Specify direction of flow, medium, and controlled value pi-ho-sm-flow-flow_diaphragm_ limiter_e V1.- 5

6 Flow limiter WP Dimensions Brass Mechanical flow limiter for fluid media. If the volume flow is tending to increase, an elastomer is compressed. This achieves an almost constant flow value. Stainless Nominal width DN 15 Process female thread G 1 / 2 connection Controlled values.5 l/min 4. l/min 12. l/min 1. l/min 5. l/min 15. l/min 1.5 l/min 7. l/min 18. l/min 2. l/min 8. l/min 2. l/min 3.2 l/min 1. l/min Differential 1..1 bar Tolerance ±1 % PN C..7 C water CW614N, NBR medium-contact.2 kg Installation as desired WP - 15 G = Special option 15 DN 15 - G 1 / 2 G female thread M brass K stainless 5.5 l/min 1 1. l/min l/min 2 2. l/min l/min 4 4. l/min 5 5. l/min 7 7. l/min 8. l/min 1. l/min 12. l/min l/min Specify direction of flow, medium, and controlled value 6 pi-ho-sm-flow-flow_diaphragm_ limiter_e V1.-

7 Flow limiter WT Dimensions Mechanical flow limiter for fluid media. If the volume flow is tending to increase, an elastomer is compressed. This achieves an almost constant flow value Nominal width DN 15 Process female thread G 1 / 2 connection Controlled values 5. l/min 7.5 l/min 13.5 l/min Differential bar Tolerance ±15 % PN.. C..7 C water CW614N nickelled NBR medium-contact.2 kg Installation as desired WT - 15 G M 15 DN 15 - G 1 / 2 G female thread M brass 5 5. l/min H 2O l/min H 2O l/min H 2O Specify direction of flow, medium, and controlled value. pi-ho-sm-flow-flow_diaphragm_ limiter_e V1.- 7

8 GHM Messtechnik GmbH Hans-Sachs-Str Regenstauf Germany Fon +49 () Fax info@ghm-messtechnik.de Product overview Laboratory Instrumentation 8 pi-ho-sm-flow-flow_diaphragm_ limiter_e V1.-