--- product_id: 5784606 title: "Grundfos 519601 Cast Iron Flange Set for UP Series Circulator Pumps-3/4 NPT, Black, 347" brand: "grundfos" price: "€ 78.70" currency: EUR in_stock: true reviews_count: 13 category: "Grundfos" url: https://www.desertcart.gr/products/5784606-grundfos-519601-cast-iron-flange-set-for-up-series-circulator store_origin: GR region: Greece --- # Complete set with flanges, gaskets, bolts & nuts 3/4-inch NPT threaded pipe connection Durable cast iron construction Grundfos 519601 Cast Iron Flange Set for UP Series Circulator Pumps-3/4 NPT, Black, 347 **Brand:** grundfos **Price:** € 78.70 **Availability:** ✅ In Stock ## Summary > 🔧 Upgrade your pump game with cast iron confidence! ## Quick Answers - **What is this?** Grundfos 519601 Cast Iron Flange Set for UP Series Circulator Pumps-3/4 NPT, Black, 347 by grundfos - **How much does it cost?** € 78.70 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/5784606-grundfos-519601-cast-iron-flange-set-for-up-series-circulator) ## Best For - grundfos enthusiasts ## Why This Product - Trusted grundfos brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **All-in-One Installation Kit:** Includes 2 flanges, 2 gaskets, and 4 bolts with nuts for hassle-free setup and maintenance. - • **Robust Cast Iron Durability:** Built to last with premium cast iron, delivering unmatched strength and corrosion resistance. - • **Secure Threaded Connections:** 3/4-inch NPT threaded fittings guarantee leak-proof, reliable pipe connections every time. - • **Precision Fit for UP Series Pumps:** Engineered specifically for Versa Flo UP and UPS circulator pumps to ensure seamless integration. - • **Trusted Quality Backed by Grundfos:** Join thousands of professionals who rely on this top-rated flange set for consistent pump performance. ## Overview The Grundfos 519601 Cast Iron Flange Set is a premium accessory designed for Versa Flo UP and UPS series circulator pumps. Featuring a 3/4-inch NPT threaded pipe connection, this durable cast iron kit includes 2 flanges, 2 gaskets, and 4 bolts with nuts, ensuring a secure, leak-resistant installation. Ideal for professionals seeking reliable, long-lasting plumbing fittings that meet manufacturer standards. ## Description Product Description Grundfos 519601 Cast Iron Flange Set is compatible with Grundfos UP Series Circulator Pumps. This kit includes (2) flanges, (2) gaskets and (4) bolts and nuts. Features NPT end connections and a 3/4" fitting size. Constructed of durable cast iron material. Check manufacturer recommendations to ensure a proper fit. From the Manufacturer Grundfos cast iron flange sets include: 2 each - flanges, gaskets, bolts with nuts. Use with Versa Flo UP and UPS pumps. Review: is what it says-quality is fine - wrong size 4 me Review: correct part and fit perfect - great quality. would purchase again ## Features - Use with Versa Flo UP and UPS pumps - Pump connection GF 15/26 - 3/4-inch NPT pipe connection - Fitting is threaded for security - Includes 2 flanges, 2 gaskets, 2 bolts with nuts ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0012QGVRC | | Best Sellers Rank | #445,522 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #780 in Water Pump Accessories | | Brand | Grundfos | | Color | Black | | Compatible Groove Diameter | 15 millimeters | | Customer Reviews | 4.7 out of 5 stars 382 Reviews | | Fastener Type | bolts | | Finish Types | Plain | | Global Trade Identification Number | 00632514009769 | | Included Components | Grundfos 519601 Cast Iron Flange Set for UP Series Circulator Pumps - 3/4" NPT | | Item Diameter | 0.75 inches | | Item Dimensions | 2 x 2 x 2 inches | | Item Shape | Round | | Item Type Name | Grundfos 519601 Cast Iron Flange Set for UP Series Circulator Pumps - 3/4" NPT | | Item Weight | 0.27 g | | Item dimensions L x W x H | 2 x 2 x 2 inches | | Manufacturer | Grundfos | | Material | Cast Iron | | Material Type | Cast Iron | | Model | 519601 | | Number Of Items | 1 | | Number of Pieces | 6 | | Outside Diameter | 0.75 inches | | Part Number | 519601 | | Screw Head Style | Hex | | Set Name | Grundfos UP Series Circulator Pumps Flange Set | | Size | 347 | | Size Name | 347 | | Thread Size | 3/4-18 | | UPC | 783961374501 632514009769 | | Unit Count | 1 Count | ## Product Details - **Brand:** Grundfos - **Color:** Black - **Item dimensions L x W x H:** 2 x 2 x 2 inches - **Material:** Cast Iron - **Size:** 347 ## Images ![Grundfos 519601 Cast Iron Flange Set for UP Series Circulator Pumps-3/4 NPT, Black, 347 - Image 1](https://m.media-amazon.com/images/I/612MCDF08AL.jpg) ## Questions & Answers **Q: What isthe size of the bolts in this set?** A: I believe they were 1/2" x 2" **Q: What are the dimensions of these flanges? Specifically how far apart are the bolt holes?, And how big is diameter on short side?** A: The bolt holes are 3 1/8” Center to Center. The diameter of the two bolt holes are approximately 1/2”. They are about 5/16” from the edge of the flange. I hope this helps you. Mike **Q: My boiler has 1" input/output. Is there a 1" flange set?** A: Yes, please see the following. Grundfos 519602 1-Inch GF 15/26 Cast Iron Flange Set … ASIN: B0012QIZNU **Q: grundfos ups 26-99fc will this set work on this pump?** A: 3/4" GF 15/16 FLANGE SET, BRONZE, THREADED, PAIR, GRUNDFOS, Use with UP15-18SF, UP15-42SF, UP25-64SF, UP26-96BF, UP26-99BF YES ## Customer Reviews ### ⭐⭐⭐⭐⭐ is what it says-quality is fine *by S***I on June 1, 2024* wrong size 4 me ### ⭐⭐⭐⭐⭐ correct part and fit perfect *by S***M on December 27, 2023* great quality. would purchase again ### ⭐⭐⭐⭐⭐ it just works *by S***H on February 1, 2021* This is a plain jane item that just works and will last a lifetime. ## Frequently Bought Together - Grundfos 519601 Cast Iron Flange Set for UP Series Circulator Pumps-3/4 NPT, 347, Black - Grundfos 59896341 UPS15-58FC Super Brute Circulator, Red, Small - 3-Speed Grundfos Pump Hot Water Circulator Pump Model UPS15-58FC; 115V --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.gr/products/5784606-grundfos-519601-cast-iron-flange-set-for-up-series-circulator](https://www.desertcart.gr/products/5784606-grundfos-519601-cast-iron-flange-set-for-up-series-circulator) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-08-14*