Products Description
Type 30 Plunger Pump Pressure Gauge | 120 bar / 12 MPa Liquid-Filled Stainless Steel Dial Gauge for Gasoline Engine-Driven Power Sprayers
Glycerin-Dampened Bourdon Tube Gauge with Color-Coded Green/Yellow/Red Operating Zones & Threaded Brass Bottom-Mount Connection
Gasoline sprayer pressure gauge for Type 30 plunger
This is a liquid-filled pressure gauge purpose-built for Type 30 triplex plunger pumps - the largest class of plunger pumps commonly used on gasoline engine-driven agricultural sprayers, including tractor-mounted boom sprayers, trailer spray rigs, and high-output backpack units. The Type 30 pump moves significantly more volume than the 22 mm and 26 mm plunger pumps, requiring a gauge with a 120 bar / 12 MPa full-scale range to safely indicate the higher operating pressures these pumps generate.The gauge case is liquid-filled with glycerin, which dampens the rapid pressure pulsations inherent to triplex plunger pump output - preventing the needle flutter that makes an accurate reading impossible on a dry gauge. The color-coded green/yellow/red band between the dual bar and MPa scales provides instant at-a-glance pressure zone identification without reading numbers.
Technical Profiles & Materials
Stainless Steel Housing with Brass Stem - Outdoor-Grade Durability：
The gauge body is a polished stainless steel case with a crimped bezel that seals the glycerin fill and protects the internal mechanism from dust, spray mist, and rain. The threaded bottom-mount stem is machined from brass - chosen for its corrosion resistance to agricultural chemicals and its self-lubricating thread characteristic that prevents galling during installation and removal. This is a gauge that lives outdoors on a sprayer that sits in the sun, gets washed down, and is exposed to pesticide drift - the stainless-brass material combination survives where painted steel-housed gauges rust at the case seam within a single season.
Color-Coded Operating Bands - Instant Visual Warning：
A semi-circular color band sits between the two numerical scales: green from 0 to approximately 35 bar (normal spray range), yellow from 35 to 55 bar (elevated - inspect nozzles and lines), and red from 55 to 120 bar (over-pressure - immediate risk of hose burst or pump seal failure). An operator scanning the gauge from two meters away while adjusting the spray wand can see the needle's color zone without reading a number - passive safety that a digital gauge or un-banded analog gauge cannot match.
Technical Specifications
| ITEM | DETAILS |
| Type | Liquid-Filled Bourdon Tube Pressure Gauge - Bottom-Mount Brass Stem |
| Application | Type 30 triplex plunger pumps on gasoline engine-driven sprayers: tractor-mounted boom sprayers, trailer spray rigs, backpack power sprayers |
| Code | 0302054 |
| Material | Stainless steel housing, brass bottom stem, glycerin-filled, copper alloy Bourdon tube internals |
| Details explanation | Range: 0–120 bar / 0–12 MPa. Liquid-filled (glycerin dampened). Color-coded bands: green 0–35, yellow 35–55, red 55–120 bar. Threaded brass bottom mount. Fits Type 30 plunger pumps |
| Brand Name | SeaSummer |
| Operating Temp | −10 ~ +60 °C (ambient) |
| Delivery Time | 30 Days |
| Packaging | Cardboard packaging |
Products Application
Pump Performance Diagnostics & Fleet Maintenance
Beyond continuous installation, this gauge serves as a precision diagnostic instrument for Type 30 pump health assessment. Dead-heading the pump against the gauge reveals maximum achievable pressure - a direct indicator of plunger seal condition, valve seat wear, and diaphragm integrity. A pump that reaches only 80 bar when rated for 100+ bar needs a seal kit before it fails in the field. The liquid-filled mechanism provides the stable, repeatable reading needed for comparative diagnostics across a fleet of pumps. For agricultural equipment dealers and cooperative maintenance workshops, one gauge services every Type 30 pump in their customer base.
Tractor-Mounted & Trailer Boom Sprayers
Type 30 plunger pumps drive the largest class of agricultural sprayers - tractor-mounted boom sprayers with 12–24 meter spray widths and trailer-type spray rigs towed behind tractors or utility vehicles. These pumps deliver 40–80 L/min at 30–60 bar, feeding 20–50 spray nozzles simultaneously. A liquid-filled gauge is essential on this equipment because the long hose runs and multiple nozzle circuits create complex pressure dynamics that cause severe needle flutter on a dry gauge. The glycerin-dampened steady reading lets the operator set and hold target pressure accurately across the entire boom width.
High-Output Backpack & Portable Gasoline Sprayers
For larger backpack and frame-mounted sprayers using Type 30 pumps on 4-stroke gasoline engines, the 120 bar gauge monitors pump discharge pressure during spot spraying of orchards, vineyards, and plantation crops. These sprayers are carried or wheeled between rows, subjecting the gauge to impact, vibration, and chemical drift that destroy economy gauges within weeks. The stainless steel housing and sealed glycerin fill provide the impact and environmental resistance that keeps the gauge functional through a full spraying season.
Quality and Craftsmanship Details
Products Package
About Us
As a premier garden machinery parts supplier, Jiaxing Norsun Trading Co., Ltd. bridges global distributors with over 100 vetted China manufacturers. We streamline your B2B supply chain through strict quality control, flexible production, and factory-direct wholesale pricing. Partner with us for reliable, high-volume sourcing of precision-engineered outdoor power equipment components.
Trusted Partnership Power
YOUR PROFESSIONAL ONE-STOP SOURCE
FOR 10000+ OUALITY PARTS
Verified Factory Excellence
BACKED BY 200+ TRUSTED FACTORY PARTNERS
Production process
Quality control
Expo experience
Customer Reviews
FAQ
Q: Are you an impartial industrial components dealer or a direct China water pump factors factory?
A:We are a direct, ISO9001-certified engineering water pump components manufacturing facility and precision fluid-control factor manufacture exporter primarily based in China. We function our personal cleanroom injection molding bays, computerized ultrasonic welding arrays, computerized hydraulic stress check stations, and clean-room packaging lines, passing direct-factory wholesale price financial savings straight to your element procurement margins.
Q: Can your manufacturing unit furnish full certification forms for food-contact or consuming water compliance?
A: Yes, absolutely. For food, beverage, or scientific applications, our manufacturing unit makes use of one hundred percent virgin, un-recycled polypropylene resins accompanied by means of fabric traceability certificates. We mechanically furnish B2B purchasers with complete FDA compliance documentation, NSF-grade compound declarations, and RoHS/REACH chemical protection screening sheets to make certain clean clearance thru worldwide customs.
Q: Do you provide customization picks for distinctly corrosive fluids like sturdy acids or ozone?
A: Yes, we are a thoroughly succesful OEM/ODM supplier. For aggressive chemical or ozone environments, we can improve the 12x26.5mm valve configuration in our factory: substituting the general PP housing with top class PVDF (Fluoropolymer) and changing any steel springs with Hastelloy or whole springless gravity-ball architecture, making sure final chemical resistance.
Q: How do we impervious a pattern batch to execute computerized lifecycle and burst-pressure testing?
A: We relatively inspire complete laboratory contrast earlier than logging mass grant agreements. We can ship a pattern lot of 5-10 gadgets of our inventory 12x26.5mm take a look at valves for assessment (setup costs and DHL/FedEx air freight apply). Once the factors pass by your inner lifecycle verification and a formal wholesale quantity manufacturing contract or container run is locked in, the sampling charges are a hundred percent credited returned to your industrial balance.
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