Complete vacuum-assisted Stage II retrofit kit: VR pumps, balance nozzles, vapor recovery hoses and every fitting needed to plumb a dispenser for vapor return.
The vacuum source that pulls vapor back from the vehicle fill pipe. Mounted inside the dispenser — DT-VR1 carries one pump head, DT-VR2 carries two, and DT-NP80 is the low-voltage NP type with its own controller.
Single pump head. Mounted inside the dispenser, serving one fuel nozzle.
| Voltage | 220 V / 380 V |
| Heads | 1 |
| Nozzle capacity | One nozzle |
| Mounting | Inside dispenser |
DT-VR1 specifications →
Two pump heads. Mounted inside the dispenser, shared by two fuel nozzles.
| Voltage | 220 V / 380 V |
| Heads | 2 |
| Nozzle capacity | Two nozzles |
| Mounting | Inside dispenser |
DT-VR2 specifications →
NP type vacuum pump with its own controller, one unit for one nozzle. Ex db IIA T3 Gb.
| Type | NP pump with controller |
| Voltage | 36 V DC |
| Nozzle capacity | One nozzle |
| Mounting | Inside dispenser |
DT-NP80 specifications →
The business end of the kit. The balance nozzle captures vapor at the fill point, and the coaxial hose carries fuel out and vapor back in one assembly.
ZVA type balance nozzle with built-in vapor return path for Stage II vapor recovery dispensing.
Full specifications →
OPW type balance nozzle with vapor return path. Select ZVA or OPW based on station preference.
Full specifications →
Flexible vapor recovery hose supplied in black or colorful outer cover. One hose per nozzle.
Full specifications →
Everything between the nozzle and the dispenser vapor line — breakaway protection, separation, and the copper or aluminum pipework that closes the loop.
Hose breakaway valve separates under designed pull force to protect the dispenser and piping, then closes automatically.
| Thread | M34 × 1.5 |
| Body material | Aluminum |
| Seal material | Viton |
| Quantity rule | One unit per nozzle |
DT VR breakaway specifications →
Vapor-liquid separation adaptor installed between the nozzle and hose. Optional version with liquid/vapor ratio adjustment.
| Oil inlet thread | G3/4" |
| Oil outlet thread | M34 × 1.5 |
| Trachea thread | G1/4" |
| Options | With or without liquid/vapor ratio adjustment |
Brass connection fitting between the VR hose and dispenser vapor line.
| Material | Brass |
| Function | Connect hose to dispenser vapor line |
| Quantity rule | One per connection point |
Straight bulkhead / mounting connector for routing copper pipe through the dispenser panel.
| Type | Straight / high-mount |
| Application | Copper pipe routing |
| Note | Optional based on dispenser modification |
Right-angle elbow fitting for changing direction in copper pipe routing.
| Type | 90° elbow |
| Application | Copper pipe routing |
| Note | Optional based on dispenser modification |
Three-way tee fitting for branching copper pipe inside or around the dispenser.
| Type | Three-way / tee |
| Application | Copper pipe routing |
| Note | Optional based on dispenser modification |
Copper pipe sold by the meter. Final length is determined by site layout and dispenser position.
| Material | Copper |
| Sales unit | By the meter |
| Note | Quantity depends on site |
Aluminum pipe sold by the meter. Used as a lightweight alternative to copper where layout allows.
| Material | Aluminum |
| Sales unit | By the meter |
| Note | Quantity depends on site |
The items above are extracted from the Stage2 Vapor Recovery Retrofit Kit quotation. Quantities for copper pipe, aluminum pipe and small fittings are reference estimates; final consumption must be confirmed after a site inspection.
Most retrofit jobs land on one of these two bills of materials. Match the package to your nozzle count, then send it back to us for a firm figure.
One fuel nozzle · one-head vacuum pump
Package A total — on request
FOB Ningbo, per package
Two fuel nozzles · shared dual-head pump
Package B total — on request
FOB Ningbo, per package
One shared pump, not two. Package B covers twice the nozzles for less than two Package A kits — the dual-head pump is where the saving sits. Ask us to quote both and compare the per-nozzle figure yourself.
Both packages are quoted per kit. Budgeting for a whole station? Multiply the package by your actual nozzle count — we will confirm the mix after a site inspection, and consolidate everything into one container.
Vapor is pulled from the vehicle tank through the VR nozzle and hose, passes the vacuum pump inside the dispenser, and returns into the underground storage tank, while the flowmeter and vapor-liquid ratio unit keep the ratio in check. Every part in this loop is covered by sections 01–04 above; the photos show the hardware in our workshop.
The five questions we are asked most often when a forecourt retrofits for Stage II vapor recovery.
Count the nozzles that will run vapor recovery. One nozzle per dispenser side takes Package A — one single-head pump, 220 V or 380 V. Two nozzles sharing one housing take Package B, where a single dual-head pump serves both, so the second nozzle costs far less than a second Package A kit.
The kit is built around your dispenser, not the other way round. The vacuum pump mounts inside the dispenser cabinet, the nozzle is available in ZVA or OPW type, the breakaway valve couples on an M34 × 1.5 thread, and the separation adaptor takes a G3/4" oil inlet with a G1/4" vapor port. Send us the dispenser make and model and we will confirm the thread set and the pump position before you order.
DT-VR1 carries one pump head and DT-VR2 carries two; both mount inside the dispenser and run on 220 V or 380 V. DT-NP80 is the NP type with its own controller, 36 V DC, one unit per nozzle, marked Ex db IIA T3 Gb.
The breakaway valve separates under its designed pull force and closes automatically, protecting the dispenser and the pipework. One unit per fuel nozzle; aluminium body with Viton seals.
Both packages are quoted per kit on an FOB Ningbo basis, and the figure is confirmed after a site inspection. Copper pipe is cut to your actual run (6 m in Package A, 10 m in Package B), while pump voltage, nozzle brand and vapor-liquid ratio adjustment are order options. Retrofitting a whole station? Multiply the package by your nozzle count — everything ships consolidated in one container.
Still unsure which parts you need? Send us the dispenser model and a photo of the nozzle boot area — we will come back with a bill of materials.
Tell us your dispenser model, nozzle count and local vapor recovery regulation — we will spec the full kit and quote within 24 hours.
Request a Kit Quote Stage III GreenGuard