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The AMS Retract-A-Tip is a survey tool for the collection of discrete soil vapour samples below the ground surface, usually at discrete depths. The sampler is made from 300 series stainless steel with a 400 series stainless steel drive tip. It may be driven to the sampling point using an AMS slide hammer or electric rotary hammer and AMS gas vapour probe (GVP) extensions with an extension drive adapter. The Retract-A-Tip is usually connected to the surface with fluoroploymer tubing.
Excellent for monitoring and sampling hydrocarbon spill sites, underground storage tanks and pipelines!
The sampler is opened by retracting the GVP extension string an inch or so. When open, the sampling ports – protected by a mesh screen – are exposed. A vacuum applied at the surface to the fluoroploymer tube will allow recovery of soil gas or groundwater samples. After sample collection, the sampler may be closed by pushing down on the drive string. The sampler may then be driven to the next discrete sampling point and another sample collected.
The Retract-A-Tip may also be used for the collection of shallow groundwater samples less than 25' from the surface. Connect a water trap to the sample delivery tube and apply a vacuum to the other side of the trap.
Gas detection instruments, PID's, FID's with a positive displacement sampling pump may be connected to the AMS Retract-A-Tip sample tube to obtain a direct reading of the contaminant levels.
Retract-A-Tip Material: 300 series stainless steel sampler; 400 series stainless steel tip
210.01 GVP Retract-A-Tip
210.05 Barbed Insert
210.06 Outer Sleeve
210.07 Inner Nut
210.08 Bottom Nut
210.09 Vapour Inlet Shaft
210.03 Screen for Retract-A-Tip
Gas Vapour Probe Kits with Dedicated Tips
Material: 300 series stainless steel sampler; 400 series stainless steel tip
209.19 GVP Kit w/Dedicated Tips w/o drill
210.00 GVP Kit w/Dedicated Tips and DeWalt D25600K Hammer Drill
209.84 GVP Kit w/Dedicated Tips and Bosch 11245EVS Hammer Drill
209.24 Heavy-Duty GVP Kit w/Dedicated Tips w/o drill
209.93 Heavy-Duty GVP Kit w/Dedicated Tips, Flighted Augers and Bosch 11245EVS Hammer Drill
Gas Vapour Probe Kits with Dedicated and Retract-A-Tip
Material: 300 series stainless steel sampler; 400 series stainless steel tips
209.16 GVP Kit w/Dedicated Tips and Retract-A-Tip w/o Drill
210.02 GVP Kit w/Dedicated Tips, Retract-A-Tip and DeWalt D25600K Hammer Drill
209.86 GVP Kit w/Dedicated Tips, Retract-A-Tip and Bosch 11245EVS Hammer Drill
209.26 Heavy-Duty GVP Kit w/Dedicated Tips and Retract-A-Tip and Flighted Augers w/o Drill
209.95 Heavy-Duty GVP Kit w/Dedicated Tips, Retract-A-Tip, Flighted Augers and Bosch 11245EVS Hammer Drill
The AMS Gas Vapor Probe (GVP) Kits are excellent for monitoring and sampling hydrocarbon spill sites, underground storage tanks and pipelines! The kits use an AMS slide hammer or an electric rotary drive hammer and GVP drive extensions to insert a stainless steel soil GVP to the desired sampling depth. Fluoroploymer tubing is attached to a barb fitting on the GVP for remote sampling from the surface.
DEDICATED TIPS - The vapor inlet holes of the dedicated tips are slightly recessed and are protected by the drive tubes to prevent them from becoming clogged during installation. A Teflon umbrella can be placed above the inlet holes before installation and unfolds when the drive tube is removed. The Teflon umbrella creates a shield that further prevents dirt from plugging the inlet holes.
RETRACT-A-TIP - The retract-a-tip can be inserted and subsequently removed without damaging the tip. When the sampling depth is reached, the drive tube is pulled up to expose the inlet holes for sampling. The point can then be driven deeper, reopened, and another sample taken.
The AMS Gas Vapor Probe Kits Include: Ten (10) GVP dedicated tips with umbrella, Retract-A-Tip (included with Retract-A-Tip kit options only), 1 1/2" wild bore bit, 5/8" tip drive end, four 3' GVP 5/8" extensions, 5/8" x 3' heavy-duty extendable tile probe base, three 5/8" x 3' heavy-duty tile probe extension, external drive adapter 3/4" ID, SDS max drill adapter, SDS max 1 1/2" carbide bit, slide hammer, slide hammer adapter 3/4" OD, hand pump, 3/16" ID x 1/4" OD x 250' fluoropolymer tubing, removal jack AMS deluxe carrying case, AMS GVP manual, GVP instruction CD video. All kits are available with or without a drill.
The Heavy-Duty AMS Gas Vapor Probe Kits Include: All of the above with a 2 1/2" wild bore bit (SDS Max) rather than a 1 1/2", PLUS, carbide drill bit, 2" flighted lead auger with hard surfaced tip, 2" x 36" flighted extension, 2" carbide tip, SDS Max drill adapter.