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Non Return Valve
Non Return Valve Selection
We supply ring plunger / non return valve as per customer request both of normal and clutch type. ring plunger set has important roll for molding process.
Manufacturing Size
| SIZE | OUTER DIA | LENGTH |
|---|---|---|
|
MIN > |
Ø30 |
100 |
|
MAX > |
Ø125 |
350 |
Material Selection
| GRADE | MATERIAL | HEAT TREATMENT | HARDNESS HRC | HARDENING DEPTH |
|---|---|---|---|---|
|
AISI 4140 |
42CrMo4 |
HARDENING |
48-50 |
Thru |
|
En24 |
34CrNiMo6 |
HARDENING |
58-60 |
Thru |
|
En41b |
41CrAlMo7 |
GAS NITRIDING |
60-65 |
0.4-0.6mm depth |
|
H13 |
X40CrMoV51 |
HARD – GAS NITRIDING |
58-65 |
Thru / 0.4-0.5mm depth |
Coating Selection
High wear / friction and pressure are developed at the time of molten plastic feed. in this concern we provide some coating solution as per below.
| GRADE | COATING THICKNESS | HARDNESS HRC | HARDNESS HRC |
|---|---|---|---|
|
HARD CHROME PLATING |
|
58 - 62 HRC |
FOR NORMAL PLASTIC |
|
PVD TiN |
|
2800 HV0.05 |
FOR 15% GLASS FIBER |
|
PVD AlTiN |
|
2800 HV0.05 |
FOR 30% GLASS FIBER |
|
PVD AlTiCrN |
|
2800 HV0.05 |
FOR 50% GLASS FIBER |
