
Sampling Systems – BLC1
BLC1 – Purge Type
Features
- Sampling from vacuum, low or high pressure devices or process lines
- Sampling with a piston valve to ensure zero dead volume
- Sampling for highly viscous liquids
- Needle purge
Basic Configuration
Wetted Material | 316 SS |
Sleeve Assembly | 250 ml sleeve with bottle retaining clip |
Needle Assembly | Process/vent needle ID: 1.4 mm (0.06″) |
Sampling Valve | Piston Valve: PTFE seat Max working pressure: 1500 psig @ 70℉ (103 bar @ 20℃) Temperature range: 0℉ to 450℉ (-18℃ to 232℃) |
Nitrogen Branch | Nitrogen regulator CV Series check valves, NB Series needle valves Pressure Gauge |
Connections | Process: 1/2″ MNPT Vent/purge: 1/4″ tube fitting |
Typical Installation Mode

1 – Preparation
Place a new septum on the sample bottle. Insert the bottle with cap and septum into the sleeve until the septum is pierced by the needles. Swing down the bottle retaining clip.
2- Sampling
Open the piston valve, allowing the sample to flow into the bottle. When the required amount has been taken, close the piston valve.
3 – Needle Purge
Open the valve on the Nitrogen branch, allowing Nitrogen to force the residual sample from the system into the bottle.
4- Off
Close the valve on the Nitrogen branch. Remove the bottle retaining clip and take out the bottle from the sleeve. The septum reseals automatically to complete the sampling process.