Restek SilcoCan User manual

SilcoCan Canister with RAVE Valve
cat.# 27400, 27401, 27402, 27403, 27404, 27405, 27406, 27407,
27408, 27409, 27410, 27411, 27412, 27413, 27414, 27415
www.restek.com
Overview
A Restek SilcoCan canister offers several important features.
We Siltek treat the inner surface for maximum inertness. The
unique holder attaches the handle and base to the canister
without welds, and it protects the canister, tube stub, and
valve. The diaphragm valve has a metal-to-metal seat, and all
canisters and valves are leak checked to 1x10-6 mL/sec. Each
canister is slightly pressurized to approximately 15 psig (1.0 bar)
with contaminant-free nitrogen prior to shipment.
Prior to Use
Restek SilcoCan canisters are shipped under pressure!
1. Unpack the SilcoCan canister from its box. Remove the
¼-inch brass cap from the top of the valve.
2. Turn the knob to the open position. Nitrogen should be
released. If not, the system is not leak tight and should be
returned. Please contact Technical Service, or your Restek
representative, for a return material authorization (RMA)
number. Please do not return the canister, or any other
Restek product, without an RMA number and a completed
health and safety declaration.
3. We recommend that you certify your canister is clean,
according to U.S. EPA Compendium Methods, such as TO-12,
TO-14A, TO-15, TO-15A, NJ Low Level TO-15, and China NEPS
HJ 759, prior to use.
Cleaning for Reuse*
To clean a SilcoCan canister and valve, we recommend a pro-
cedure such as that summarized here. We also recommend
performing a blank analysis according to your method; for ex-
ample, TO-15 after cleaning the canister to certify the canister
is clean prior to reuse.
IMPORTANT PRECAUTIONS!
• Only hand tighten knob to close valve. Overtightening will
damage the seat, causing leakage.
• Tighten compression fitting on valve inlet only ¼ turn past
finger tight. Overtightening will cause leakage.
• Always use a prefilter during sampling to prevent particulate
damage to valve.
• Do not disassemble valve—disassembly will void warranty.
• Protect valve inlet by replacing brass cap when not in use.
• Do not exceed canister maximum pressure of 40 psig
(2.75 bar).
Typical Cleaning Method
1. Connect the canisters to the cleaning system, release any pressure within any of them, and
evacuate them. Based on EPA Method TO-15, the ultimate vacuum achieved during cleaning
should always be <0.2 mm Hg.
2. After the canisters have been under vacuum for approximately 1 hour, pressurize them with
humidified nitrogen to 5 psig (0.34 bar) (if they will be heated during cleaning) or to 30 psig
(2.0 bar) (if they will not be heated). Caution: If heat is used during cleaning, use humidi-
fied nitrogen only—do not use air. Cleaning SilcoCan canisters with humidified air and heat
above 80 °C may damage the fused silica surface, resulting in reduced recoveries of sulfur and
other reactive compounds. Pressurization will dilute the contaminants and the water vapor
will hydrolyze them. When the system has equilibrated at the designated pressure, proceed
to step 3 (heating), or step 4 (no heat).
3. Heat the pressurized canisters to the appropriate temperature. A Restek SilcoCan canister
fitted with a gauge can be heated to 120 °C; a canister without a gauge can be heated to
140 °C.**
Note: These temperature limits only apply using an inert gas like nitrogen. If using air, all
SilcoCan canisters must be cleaned at 80 °C or below.
4. Allow the canisters to equilibrate for at least 1 hour. Evacuate the canisters to remove the im-
purities, then allow them to equilibrate for 1 hour.
Repeat steps 2–4 as necessary.The number of cycles will be determined by how dirty the canisters
are and how easily they clean. Without heat, the number of cycles required to clean the canisters
may be higher.
Certifying a Cleaned Canister
We recommend certifying canisters for both cleanliness and analyte stability. To certify a canister
is clean, pressurize the cleaned canister to 30 psig (2.0 bar) with humidified, certified ultra-high
purity air or nitrogen. Analyze an aliquot of the canister content by GC-MS, GC-FID, or GC-ECD. If
a canister does not meet specification, it must be recleaned and retested.
Newest coating
technology
To ensure sample stability, SilcoCan
canisters are deactivated with
innovative Siltek surface treatment,
which chemically bonds a fused silica
layer to the metal inner surface of the canister.
This layer offers unsurpassed inertness for active
compounds, including polar and sulfur-containing
molecules. It will not crack, chip, or flake off, despite
harsh handling in the field or during transport.
Optional gauge
• Quickly confirm vacuum or
pressure inside canister.
• Monitor pressure changes.
• Fully protected by canister frame.
Serial controlled
For quick, sure identification.
Enhanced valve and
canister bracket
Canister holder and valve bracket
protect canister, tube stub, and
valve.
1/4" Tube stub
Allows user to interchange valves.
*For detailed information about cleaning, certifying, and using canisters, request A Guide to Whole Air Canister Sampling (lit. cat.# EVTG1073A) or search www.restek.com for “EVTG1073A.”
**To use temperatures above 120 °C to clean a SilcoCan canister fitted with a gauge, you must remove the gauge and plug the gauge port prior to cleaning.

#500-02-002 Rev. date: 01/19 © 2019 Restek Corporation. All rights reserved. Printed in the U.S.A.
Restek patents and trademarks are the property of Restek Corporation. (See www.restek.com/Patents-Trademarks for full list.) Other trademarks in Restek literature or
on its website are the property of their respective owners. Restek registered trademarks are registered in the U.S. and may also be registered in other countries.
Questions about this or any other Restek product?
Contact us or your local Restek representative (www.restek.com/contact-us).
www.restek.com
Reconditioning Service
Normal wear and tear on a canister may result in valve damage and leakage. We offer a reconditioning service in which we will replace the valve, clean, and leak
test the canister for much less than the cost to replace the entire canister. If you would like this service, please follow the instructions below:
1. Contact Restek or your local Restek representative and place an order for cat.# 569419 (RAVE diaphragm valve) using your company purchase order.
2. Obtain a Service Authorization No. (SRV) to affix on the outside of the shipping container.
3. Clean canister before shipment to Restek and include a completed health and safety declaration.
4. Return canister intact. Do not remove valves or gauges that were part of the original canister.
SilcoCan Air Sampling Canisters with RAVE Valve
*Range of standard gauge is -30" Hg to 60 psi.
Do not exceed canister maximum pressure of 40 psig (2.75 bar).
Canisters are the gold standard
for ambient VOC monitoring.
1 L Volume 3 L Volume 6 L Volume 15 L Volume
Description cat.# cat.# cat.# cat.#
2 Port RAVE Valve 27400 27404 27408 27412
2 Port Siltek-Treated RAVE Valve 27401 27405 27409 27413
3 Port RAVE Valve with Gauge* 27402 27406 27410 27414
3 Port Siltek-Treated RAVE Valve
with Gauge* 27403 27407 27411 27415
without Valve 22090 22091 22092 22093
RAVE Diaphragm Valves
Siltek-treated Stainless Steel
Description qty. cat. cat.
1/4" Diaphragm Valve, RAVE (2-port) ea. 26386 26385
1/4" Diaphragm Valve, RAVE (3-port) ea. 26388 26387
RAVE Diaphragm Rebuild Kit (includes: 3 diaphragms) kit 26390 26389
TO-Clean Canister Cleaning System
High capacity, fully automated, easy-to-use canister cleaning oven dramatically
increases lab efficiency.
• Oil-free pump lowers risk of contamination.
• Compliant to most documented government and standard methods.
• Powerful 6i pump can achieve 50 mTorr in <25 minutes for twelve 6 L canisters; higher power
10i option also available.
• Custom-built trays for different canister sizes.
• Humidifier provides humidified nitrogen to improve cleaning process.
• One-year limited warranty.
• Fully assembled and ready to use.
Shipping: FedEx Ground, unless otherwise requested. Costs vary depending on ship-to location.
Note: Ovens are built on demand; therefore, a ten-week lead time is required on all orders. A limited cancellation and
return policy applies to TO-Clean ovens; contact Restek Customer Service for details.
Description Type Voltage qty. cat.#
TO-Clean Oven w/Oil Free Pump Edwards nXDS6i Dry Scroll Pump 120 V, 60 Hz ea. 26379
TO-Clean Oven w/Oil Free Pump Edwards nXDS6i Dry Scroll Pump 220/230 V, 50/60 Hz ea. 26380