MW 17-3
DVGW-Reg.No.: DG-4392A00740
With positive overlap for testing gas conversion devices Inspection certificate DIN EN 10204 3.1
TECHNICAL CHARACTERISTICS
| CHECK VALVE MW 17-3 FOR GAS CONVERSION DEVICE |
| Pressure level: |
PN 100 |
| Nominal diameter: |
DN 3 |
| Temperature range: |
-20 °C to +60 °C |
| Medium: |
all gases acc. to DVGW worksheet G 260/I |
| Body material: |
St 52.3, galvanized |
| Ball seal: |
PTFE |
| Connections: |
non-soldering compression fittings
acc. to DIN2353 – EO 6 L |
| Labeling: |
Testing with operating pressure:
Test connection:
Testing with external pressure:
Pressure sensor connection
Operating position:
Meter connection |
Prices
Check valve for gas conversion device
Type: MW 17-3 with connections EO 6 L |
KH006100DW |
79,80 |
| Inspection certificate DIN EN 10204 3.1 APZ |
APZ |
18,00 |
Design Features
- full bore
- O-ring underlaid ball seals
- ball cock design
- lever handle can be sealed
- large position indicator
In General
Three-way check valve with positive overlap, full bore (overlapping free design), used mainly for testing gas conversions devices in gas pressure regulating and metering stations.
| No. |
Description |
Material |
Note |
| 01 |
Body |
9SMn28K |
galvanized |
| 02 |
Ball cock |
brass |
hard-chromed |
| 03 |
Measurement connection 04 Countersunk screw |
steel |
|
| 04 |
Countersunk screw |
steel |
galvanized |
| 05 |
Screw type bearing |
9SMn28K |
|
| 06 |
Stop ring |
St 37 |
|
| 07 |
Direction plate |
9SMn28K |
|
| 08 |
Support pipe |
brass |
|
| 09 |
Ball seal |
PTFE |
|
| 10 |
Union nut |
steel |
galvanized |
| 11 |
Cutting ring |
steel |
hardened |
| 12 |
Stop pin |
steel |
galvanized |
| 13 |
Handle |
aluminium |
red anodized |
| 14 |
O-Ring |
NBR (Perbunan) |
DIN 3535 T3 |
| 15 |
O-Ring |
NBR (Perbunan) |
DIN 3535 T3 |
| 16 |
O-Ring |
NBR (Perbunan) |
DIN 3535 T3 |
| 17 |
O-Ring |
NBR (Perbunan) |
DIN 3535 T3 |
| 18 |
O-Ring |
NBR (Perbunan) |
DIN 3535 T3 |
Note
According to the directives of PTB and the operator of the plant, gas conversi- on devices must be calibrated at regular intervals.
PRESSURE AND TIGHTNESS TEST
The three-way check valve MW17-3 is tested in the quality control according to DIN3220 T5 PG3 in the following steps according to the testing plan:
| Body upper pressure test: |
150 bar |
| Tightness test of connections and ball cock seal: |
110 / 0,5 bar |
| Functional test |
100 bar |
