![Suction Control for Oil Injected Screw Compressors Suction Control for Oil Injected Screw Compressors](https://www-prod.hoerbiger.com/_Resources/Persistent/a/e/e/6/aee64d7fa5ee5cd5010e0f15b2a08238fadb9d50/Suction_Control_for_Oil_Injected_Screw_Compressors_1400x700.jpg)
Suction control
for oil injected screw compressor
Compressor capacity must be regulated whenever it exceeds current demand. HOERBIGER suction control valves regulate compressor suction volume and close the suction duct during off-loading and shutdown. Airflow is straight through the valve so that flow resistance is very low.
Intake regulation, on/off or stepless with venting and check valve function
Disc type control (HK):
Straight through flow valve with butterfly type control disc and swing type check valve with integrated modulation control. Stepless / two-point control-full load or idling via servo-cylinder.
Poppet type control (TS):
Straight through flow valve with poppet type check valve.
- Volume air flow:
- HK: 1 to 60 Nm3/min I 35 to 2120 scfm
TS: 1 to 40 Nm3/min I 35 to 1410 scfm - Maximum working pressure:
- 16 barg I 232 psig
- Temperature:
- -20 to +120 °C I -4 to +248 °F
- Pressure drop:
- 0.0004 to 0.03 barg I 0.002 to 0.43 psig
![](https://www-prod.hoerbiger.com/_Resources/Persistent/0/4/0/4/04049284000ce5c2a155fe6edb7d7f8e166ea301/Suction-Control-Check-Valve-HK_Technical-Data-Sheet_A4_RGB_EN_2024.png)
Type: HAK / HDK / HPK / HK 50 / 65 / 85 / 120 / 140 / 160 / 200
Intake regulation, on/off or stepless with venting
Disc type control (DK):
Straight through flow valve with butterfly type control disc.
Add-on option off venting or blow down valve (VVF).
- Volume air flow:
- 4 to 140 Nm3/min I 140 to 5000 scfm
- Maximum working pressure:
- Atmosphere
- Temperature:
- -20 to +120 °C I-4 to +248 °F
- Pressure drop:
- 0.002 to 0.02 barg I 0.029 to 0.29 psig
![TS – Intake valve TS – Intake valve](https://www-prod.hoerbiger.com/_Resources/Persistent/5/a/7/d/5a7d6a0c0b80473b1f7d0f8d32ca91a25d7b6366/TSO_50_5-4-456x456.jpg)
![HK – Intake valve HK – Intake valve](https://www-prod.hoerbiger.com/_Resources/Persistent/6/4/8/5/6485d2a0fa2283361affb1a37319d67e1880509e/LPR_8679_5-4-456x456.jpg)
![DK – Suction control valve DK – Suction control valve](https://www-prod.hoerbiger.com/_Resources/Persistent/d/f/3/2/df321e05120e5ec78f70183b52aebb0183252bed/LPR_8772_5-4-456x456.jpg)
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