Technical specifications:
| Type: | Positive-displacement, 4-piston |
| Working medium: | LPG (propane, butane, propane-butane blends) |
| Measuring range: | 5–35 L/min |
| Max working pressure: | 1.8 MPa (18 bar) |
| Discharge per revolution: | 0.5 L |
| Accuracy: | ≤ ±0.2% |
| Repeatability: | ≤ 0.07% |
| Adjustable min volume: | 0.1% |
| Dimensions (W×D×H): | 360 × 290 × 360 mm |
| Net weight: | 31 kg |
| Gross weight: | 33 kg |
| Connection: | Flanged DN25/DN40 |
| Compatibility: | Gerkon LPG dispensers, Tatsuno, FAS, Bonomi, Adast (others on request) |
| Output signal: | Pulse encoder or mechanical drive shaft (by request) |
| Recalibration interval: | 12 months |
| Warranty: | 12 months |
| Manufacturer: | NVF Gerkon Ltd., Zaporizhia, Ukraine |
LPG Piston Flow Meter for Gas Dispensers
Positive-displacement piston flow meter designed for high-accuracy commercial metering of Liquefied Petroleum Gas (LPG — propane, butane and their blends) in gas dispensers, automotive LPG filling stations and bulk-LPG transfer systems.
Operating principle
A four-piston rotating mechanism captures the volume of liquid LPG passing through the chamber. One full rotation of the drive shaft corresponds to exactly 0.5 L of fluid — yielding a linear flow characteristic with no accuracy loss across the entire flow range. Output signal is delivered via pulse encoder or mechanical register, compatible with most dispenser electronics.
Construction & materials
- Cast-iron body with protective coating; bronze flanges
- Precision-lapped pistons — no elastomer seals in the wetted path
- Flanged connections DN25/DN40 — compatible with Gerkon, Tatsuno, FAS, Bonomi and Adast LPG dispensers
- Fine-tuning calibration mechanism for in-field accuracy adjustment
- Sealed output shaft for pulse generator or mechanical totalizer
Applications
- LPG dispensers at filling stations — customer LPG metering
- LPG road tankers — loading and unloading custody transfer
- Industrial bulk-LPG systems — commercial accounting
- Retrofit replacement for legacy piston meters during dispenser modernization
Key advantages
- ±0.2% accuracy across the operating range
- Repeatability ≤0.07% — long-term measurement stability
- Four-piston chamber — reduced flow pulsation vs. two-piston designs
- Withstands 1.8 MPa working pressure — suits any dispenser model
- 12-month warranty. Metrological calibration performed before shipment.
Metrology & certification
Recommended re-verification interval: 12 months. NVF Gerkon Ltd. performs primary and periodic verification at its own metrology facility (calibration is offered as a separate service in our catalogue). A calibration certificate can be ordered separately.
Delivery scope
- Flow meter with flanged ports
- Mounting studs, nuts, gaskets
- Manufacturer's passport
- Installation & operation manual
Frequently Asked Questions
Is it in stock and what is the lead time?
Which gas dispenser models is it compatible with?
Can it be used for gasoline or diesel?
How is the meter calibrated?
Do you supply the meter with a pulse encoder?
Warranty and service?
SHIPPING INFORMATION FOR UKRAINE
Our company is committed to fast shipping and delivery throughout Ukraine. We work with carriers that offer the best balance of price and quality, including:
NOVA POSHTA
1-3 days. Delivery speed depends on your location. After placing your order and payment, we ship the same day or the next.
SAT
Delivery time 3-5 days. Speed depends on the distance between sender and recipient. This is the most economical option compared to Nova Poshta.
DELIVERY
Shipping takes 4-7 days. This is the slowest method, but its advantage is the low cost.
FREIGHT POOLING
Shipping is done via shared transport through a dispatcher. Finding a vehicle takes 1-2 days; speed depends on the destination (major cities are faster, remote villages slower). This method is cheaper than the carriers listed above.
We work throughout Ukraine, and on request can arrange delivery via another courier service not on our list.
After placing your order in our online store, please provide the following information for delivery to your region:
- Recipient's full name
- City or town
- Number of the nearest warehouse (if shipping via courier services)
- Mobile phone number
Once the goods are shipped, we will provide you with the waybill number. When picking up your order, please bring your passport and the waybill number.
NOTES:
- The seller is not responsible for the operation of postal / courier services.
- Shipments are insured for full value; in case of damage the carrier is obligated to compensate you in full.
- Shipping costs are paid by the buyer (or by mutual agreement).
- If the requested product cannot be supplied, an equivalent replacement will be offered upon your approval.
If you couldn't find an answer to your question in this section, please contact us for more detailed information.
PAYMENT METHODS
After placing an order for a selected product in our store, we verify stock availability and confirm with you. Payment can then be made using one of the following methods:
- Bank transfer to the company account (VAT included).
- Cash on delivery (payment upon receipt).
Before paying via bank transfer, please contact us to confirm product availability.
Cash on delivery is processed at the carrier's warehouse. The service fee is 2% of the total + 15 UAH for payment processing. For an order of 1000 UAH you will pay 35 UAH for this service plus the shipping cost.
The second method is more reliable as you can inspect the goods on the spot, but it is also more expensive, so before paying you may want to consider which method suits you best.
If payment is received by 12:00, we ship the same day; if payment arrives later, shipping is processed the next day.
For any questions about payment, please contact us — if you haven't found an answer to your question, we will provide more detailed information.
WARRANTY & SERVICE
- Warranty on Gerkon fuel dispensers — 18 months;
- Warranty on Gerkon measuring tanks — 18 months;
- Warranty on level meters — 36 months;
- Warranty on fuel dispenser connection installation — 18 months;
The manufacturer guarantees free replacement or repair of dispenser parts and assemblies that fail due to manufacturing defects, provided that transportation, storage, and operation rules are observed.
