Kelley Instrument Machine, Inc.

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Universal Plates

The Production of Orifice Plates by KELLEY®

When it comes to the production of orifice plates, nobody is able to produce quality quite like Kelley Instrument Machine, Inc. We are proud manufacturers of universal-type orifice plates that are designed to be used in orifice fittings. Our plates are available in 1/2” to 30” line sizes measuring 1/8” to 1/2" thick. 

All of our plates for orifice fittings are manufactured using NACE-certified material. Standard materials available include 304SS and 316SS. Other materials are also available with a slightly longer delivery time. Contact our machine part manufacturer today to place your order. 

Consistent quality is the backbone of our company’s success. Throughout the production process, we pay careful attention to detail to ensure you receive a product that meets or even exceeds your expectations. With our plates for orifice fittings, quality control starts at the very beginning: selecting the raw materials. We only use stretcher-leveled quality stainless steel sheets from suppliers we trust. Each sheet is examined for defects before getting sent to the machining stage. Review our quality standards to learn more about our commitment to your satisfaction.

Using Our Universal-Type Orifice Plates

Universal-type orifice plates are to be used with seal rings in line sizes smaller than 10”. Looking for these branded seal rings? We have got Nitrile (NBR), Hydrogenated Nitrile (HNBR), and PTFE seal rings in stock right now.

KELLEY® orifice plates will also fit all manufacturers’ meters fabricated to AGA Report #3, A.P.I. 14.3, G.P.A., and A.S.M.E. specifications. We are also your source for molded poly plate boxes. So reach out to us today to discuss your needs to ensure that you get the parts you need for your equipment.


Get the answers you need about our universal plates for orifice fittings by talking to our team. Whether you have questions about the production process or potential applications, we’re happy to answer them for you. Our team can also help you determine which universal size best suits your needs or if you would benefit more from one of our other plate styles.

In addition to our standard universal designs, we also offer paddle-style and vulcanized plates for orifice fittings. Each type has its own advantages and drawbacks, as well as unique applications. Our team is here to help you choose the best style for your industrial application to ensure your satisfaction. Don’t hesitate to contact us if you have any questions about our plates before placing your order.