PP Derivation Coupling With Flat Gasket — 15x16mm Barbed Branch Take-Off

Iteam Number:GRPF0011

PP Derivation Coupling With Flat Gasket — 15x16mm Barbed Branch Take-Off

PP derivation coupling that takes a branch off a mainline, supplied with the flat rubber gasket already fitted on the spigot end. The barbed end holds the tube by friction and a flange between the two ends sets insertion depth, so the joint stays straight without a clamp on low-pressure lines. The 15×16 combination pairs two close diameters, which lets a 15mm line run off 16mm tubing in one part. OEM, ODM and OBM are supported, with body colour matched to your sample or colour code.

Item NO.: GRPF0011

Brand: GoldRainirrig

Material: PP

Product Origin: China

Shipping Port: Ningbo

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Product details

1.Product Information

Product NamePP Derivation Coupling With Flat Gasket / Barbed Branch Coupling
TypeStraight coupling, barbed + spigot, reducing
Size15*16
MaterialPP
ColorBlack; custom color available
ConnectionBarbed end + spigot end
GasketFlat rubber gasket, fitted on the part
ApplicationBranch take-off, drip tape, micro tube, greenhouse
OEM / ODM / OBMSupported
Custom ColorSupported (match to sample or colour code)
Custom Label / Carton MarkSupported under OEM
Connection method

2.Product Feature

  • Flat Gasket Fitted On The Part:The flat rubber gasket comes already fitted on the spigot end, so the joint arrives ready to seat instead of needing a separate ring ordered alongside.
  • Multi-Ring Barb Grip:The barbed end carries several rings, so the tube wall is gripped at more than one point and pull-out load spreads along the insertion depth instead of loading a single ridge.
  • Flange Sets Insertion Depth:A flange between the two ends stops the tube at a fixed depth, keeping the coupling straight and stopping the tube from being pushed through the body.
  • 15×16 Branch Take-Off:One reducing combination pairs a 15mm connection with 16mm tubing, so a sub-lateral can be taken off the mainline in a single part instead of two adapters.
  •  Push-On Installation:No thread, no glue and no tool — the tube pushes over the barb and seats against the flange, which suits mid-season branch changes.

3.Product Application

Used to take a 15mm branch off 16mm mainline tubing, or to re-seat a leaking branch joint — greenhouse benches, nursery pot lines, orchard sub-laterals, landscape beds and garden drip kits.

Application scenario

4.About us

Ningbo Gold Rain Irrigation Technology CO., LTD. is a professional irrigation system manufacturer and supplier. We have many years of export experience and provide OEM/ODM services for our customers. From raw materials to injection molding, assembly, packaging and delivery, we strictly control the quality of every step of the product.

If you want to know more about the production steps and parameter details of the irrigation PP fittings, please click here to contact us.

5.FAQ

1.Are you a manufacturer or a trading company?
We are a manufacturer with in-house R&D, production, marketing, and after-sales.

2.What certifications do you hold?

Our quality management follows ISO 9001, ISO14001, and ISO45001. Materials and products can be supplied with Certificates of Conformance and other export documents (for example, Origin, Insurance). Third-party testing (for example, CE, TUV, and SGS test reports) can be arranged as required by project tenders.

3.Do you offer Customizable/OEM/ODM services?

Yes. We provide customizable nozzle kits, materials, colors, packaging, delivery and complete OEM/ODM support: 2D drawing, 3D modeling, material selection, prototype sampling, mass production, labeling, and export logistics.

4.What product ranges do you provide?

We supply agricultural irrigation solutions, including:

Sprinkler Irrigation System, Drip Irrigation System, Micro Irrigation System, Irrigation Filters, Irrigation Valves, Irrigation Fittings, Irrigation Accessories, Garden Watering System and Irrigation Fertilizers.

5.Do you provide custom logos on products/packaging?

Yes, we support logo customization for both products and packaging.

6.Are samples available? How long to prepare?

Yes, we provide samples. Non-OEM samples are available within 3 days.

7.What are the payment terms?

30% T/T deposit, balance before shipment (with your forwarder)

30% T/T deposit, balance against shipping documents (with our forwarder)

100% irrevocable L/C at sight (order ≥ USD 20,000)

100% T/T in advance for small orders (≤ USD 2,000)

PayPal/Western Union for sample orders (≤ USD 100)

Annual purchase programs may qualify for credit support.

8.What is your average lead time?

Samples: about 7 days (stock permitting)

Mass production: 20-30 days after deposit and final approval

We work to meet your deadlines—inform sales of target ship dates early.

9.Can you build up inventory based on predictions and ship in batches?

Yes. We can maintain safety stock based on the agreed forecast and your schedule. We have sufficient warehouses for installment delivery. Details can be discussed separately.

10.What shipping methods do you offer?

Samples: DHL/FEDEX/TNT/UPS

Small orders: air freight

Bulk orders: sea freight (main ports: Ningbo/Shanghai) or rail/truck as applicable

Freight depends on volume/weight/mode; we quote exact rates upon order details.

11.What is your minimum order quantity (MOQ)?

Samples: 1 unit (courier freight collect)

Standard products: typical MOQ value USD 2,000 per item

Customized products: typical MOQ value USD 10,000 per item

Contact us to obtain multiple different project SKUs.

12.What packaging options do you provide?

Standard export-grade corrugated cartons. Custom packaging is available upon request.

13.What documentation can you provide?

Certificates of Conformance, Packing Lists, Commercial Invoices, Bills of Lading, Certificates of Origin, Insurance docs, performance curves, installation guides, and QC reports.

14.How do I place an order?

Contact our sales team with your item list/specs

Technical confirmation and quotation

PI and deposit

Production and QC

Shipment, documents, and after-sales support

15.What QC measures do you implement?

Total Quality Control (TQC) covers raw material inspection, in-process checks, 100% final product inspection, and random warehouse audits.

16.Do you provide technical support for installation/maintenance?

Yes, we offer installation guides, operation manuals, and remote technical assistance. On-site support is available for large projects.

17.Can your products handle various water qualities?

Yes, our UV-resistant, corrosion-proof designs (high-strength plastic/brass/stainless steel components) work with well water, river water, and treated water. Self-cleaning valve structures prevent blockages from impurities.

18.What after-sales support channels do you provide?

We offer 24/7 technical support via hotline, email, and online platforms. Our global service network ensures timely responses to warranty claims and maintenance needs.

19.How fast do you respond to inquiries?

Within 12 hours on working days.

20.What applications are your products suitable for?

Our products are suitable for field crops, orchards, landscaping, gardening, pasture, sports fields, greenhouses, and industrial dust suppression. Specialized models adapt to diverse terrains and crops.

21.Do you offer pressure-regulated options?

Yes. We have pressure-regulating bodies and valves to stabilize nozzle pressure, reduce misting, and improve uniformity in varied elevation or long laterals.

22.How do you solve the clogging problem in micro and drip sprinkler systems?

Use appropriate pre-filtration (disc/screen/centrifual/hydrocyclone), maintain filters regularly, flush lines 5–10 minutes at startup, and manage fertilizer concentration to avoid precipitation. For marginal water, consider chemical treatment and periodic acid/chlorination as per local standards.

23.How does an irrigation system work?

It draws water from sources (rivers, wells) via pumps/gravity, transports it through main/sub-main/lateral pipes, and delivers it to plant roots via sprinklers/drip emitters. Modern systems add filters (anti-clog) and sensors (adjust flow by crop/weather).​

24.What is drip line irrigation?

A micro-irrigation method: perforated plastic tubes with emitters deliver water slowly (2—12L/h) directly to roots. It saves water (95% utilization), has filters/regulators, suits arid areas/high-value crops, and can mix nutrients.​

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