Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

Pratissoli Unloader Valves - H1520

Pratissoli Unloader Valves - H1520

Pratissoli 3G-PRT-00138 high-performance valves (200 L/min flow, 150 bar pressure, 2 kg). Italian-engineered by Pratissoli (Interpump Group).

SKU 3G-PRT-00138

Also listed as: H 1520 · H-1520

Brand
Pratissoli
Item
Unloader Valves - H1520
Category
Valves
UNSPSC
40141609 — Control valves
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Pratissoli
For pumps
KE - KT - KF - KS - MW
Weight (kg)
2
Flow (L/min)
200
Weight (lbs)
4,4
Flow (US Gpm)
52,8
Pressure (MPa)
15
Pressure (bar)
150
Pressure (psi)
2175
MAX Temperature (°C)
85
MAX Temperature (°F)
185

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

Pratissoli Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

Pratissoli 3G-PRT-00138 high-performance valves (200 L/min flow, 150 bar pressure, 2 kg). Italian-engineered by Pratissoli (Interpump Group).

Frequently Asked Questions

What is the Pratissoli 3G-PRT-00138 unloader valve used for?

The Pratissoli 3G-PRT-00138 unloader valve is used in high-pressure water systems to regulate flow and pressure, protecting pumps from overpressure. It is commonly applied in industrial cleaning, hydroblasting, and water-jet cutting systems where flow rates up to 200 L/min and pressures up to 150 bar are required.

What are the specifications of the Pratissoli 3G-PRT-00138 valve?

The Pratissoli 3G-PRT-00138 valve handles a maximum flow of 200 L/min (52.8 US Gpm) and a maximum pressure of 150 bar (2175 psi). It weighs 2 kg (4.4 lbs) and is rated for temperatures up to 85 °C (185 °F). It is compatible with Pratissoli KE, KT, KF, KS, and MW pump models.

Where to buy Pratissoli 3G-PRT-00138 unloader valves in Singapore?

You can source the Pratissoli 3G-PRT-00138 unloader valve through 3G Electric in Singapore. We handle logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on the ZKH1520-000 variant. We provide genuine Pratissoli components engineered by the Interpump Group.

How to install a Pratissoli 3G-PRT-00138 unloader valve?

Install the Pratissoli 3G-PRT-00138 unloader valve by connecting it to the pump discharge line, ensuring proper thread sealing. Adjust the pressure setting using the integrated screw while monitoring a pressure gauge. Always follow the pump manufacturer's guidelines and use appropriate personal protective equipment during installation.

Used in

Common applications for Pratissoli
High-pressure industrial cleaning systems — Pratissoli SN7070F and SN71106F pumps (130–200 bar) for sustained pump duty in fixed or mobile wash equipment
Marine and shipboard hydraulic systems — SS7061H and SS71153 pumps rated 150–160 bar for deck machinery and propulsion auxiliaries requiring compact, reliable units
Construction equipment hydraulics — SN7193 and SN71106 models (200–210 bar) for excavator, loader, and crane power-transmission circuits
Industrial press and forming machinery — Pratissoli pump assemblies with ZR1X regulating valves (400 bar) for closed-loop pressure control in metal-working and rubber-molding lines
Mining and aggregates processing — Long-duty SS and SN series pumps (130–160 bar) supplying conveyor drives, screen shakers, and mobile crusher circuits
Oil and gas transfer and metering — Pratissoli regulating-valve models (H168A, R1/200) in skid-mounted pump packages for fluid loading, injection, and line-pressure stabilization

Pratissoli Products

3G Electric supplies Pratissoli valves. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
Unloader Valves - H560
Pratissoli
Unloader Valves - H560
Unloader Valves - H168
Pratissoli
Unloader Valves - H168
Unloader Valves - H2820
Pratissoli
Unloader Valves - H2820
Unloader Valves - H168US
Pratissoli
Unloader Valves - H168US
Unloader Valves - H288
Pratissoli
Unloader Valves - H288
Unloader Valves - H288US
Pratissoli
Unloader Valves - H288US

More from Pratissoli

View all Pratissoli parts
Pratissoli
Pratissoli
High Pressure Sewer Cleaning Hoses > Long Life - Complete hoses with fittings - ZT16B1500707
Pratissoli
Pratissoli
High Pressure Sewer Cleaning Hoses > Pilotflex 120 - Complete hoses with fittings - ZT05A0155252
Regulating Valves - R2
Pratissoli
Regulating Valves - R2
Unloader Valves - K10.2
Pratissoli
Unloader Valves - K10.2
Pneumatic Valves - PNR1503
Pratissoli
Pneumatic Valves - PNR1503
Pratissoli
Pratissoli
High Pressure Sewer Cleaning Hoses > Long Life - Complete hoses with fittings - ZT12B0600606
Accessories > Filtres - F10
Pratissoli
Accessories > Filtres - F10
Pratissoli
Pratissoli
High Pressure Sewer Cleaning Hoses > Long Life - Unassembled hoses - ZT08B0600000