Swagelok KPR Series Regulator

Overview

Swagelok KPR Series Regulator is a spring-loaded, general-purpose pressure-reducing regulator engineered to provide the reliable, sensitive pressure control that fluid system safety depends on. Combining an all-metal, convoluted diaphragm sensing mechanism with a two-piece cap design, the Swagelok KPR Series Regulator delivers excellent accuracy, sensitivity, and setpoint pressure stability in a compact footprint suited to instrumentation, laboratory, and general industrial gas and liquid systems.

As the official authorized partner and exclusive regional representative for Swagelok, Seven Star LLC proudly supplies the Swagelok KPR Series Regulator to industrial, laboratory, and process customers across Oman and the wider GCC. Every regulator shipped through Seven Star LLC is genuine Swagelok product with full manufacturer warranty and access to local technical support – ensuring facility engineers and procurement teams in Muscat, Sohar, and Salalah receive authentic, factory-certified Swagelok KPR Series Regulators backed by regional service.

Working Principle

The Swagelok KPR Series Regulator operates as a spring-loaded, direct-acting pressure-reducing regulator. An all-metal, convoluted, non-perforated diaphragm acts as the sensing mechanism, balancing downstream outlet pressure against the force of a range spring set by the operator’s handle. As outlet pressure rises above the setpoint, the diaphragm moves to close the poppet against its seat, reducing flow and pressure; as downstream pressure falls, the spring force reopens the poppet, admitting more flow until balance is restored.

This design gives the Swagelok KPR Series Regulator its defining characteristics: the metal-to-metal diaphragm seal and low internal volume improve response speed and sensitivity, while the convoluted, non-perforated diaphragm geometry enhances sensitivity further and extends service life compared with flat-diaphragm designs. A high-flow, dual-gauze filter positively retained in the inlet port protects the seat and internal components from particulate contamination carried in the supply gas or liquid, reducing the risk of seat damage and premature maintenance.

Engineering Design of the Swagelok KPR Series Regulator

The Swagelok KPR Series Regulator is constructed with a 316 stainless steel body and is available with PCTFE or PEEK seat materials to match cleanliness and chemical compatibility requirements. The regulator supports maximum inlet pressures up to 3600 psig (248 bar) with pressure control ranges spanning from 0 to 25 psig up to 0 to 500 psig depending on configuration, and operates across ports including 1/4 in. female NPT, tube butt weld, and VCR gland connections in several port configurations.

The two-piece cap design applies linear load directly onto the diaphragm seal, improving consistency of setpoint control across the pressure range. Handle options include knob, thumbwheel, and antitamper styles to suit both frequent field adjustment and installations where setpoint security is a priority. Isolation valves and adjustable regulator relief valves can be factory-assembled onto the KPR Series, allowing a single ordered part to combine shutoff or overpressure protection with pressure reduction in one compact assembly.

Key Features

The Swagelok KPR Series Regulator combines sensitivity, contamination protection, and configuration flexibility that make it a standard choice for general-purpose pressure reduction duty.

• An all-metal, convoluted, non-perforated diaphragm delivers greater sensitivity and enhanced service life compared with conventional diaphragm designs.
• A metal-to-metal diaphragm seal and low internal volume improve response speed and setpoint stability.
• A high-flow, dual-gauze filter positively retained in the inlet port protects the seat from particulate contamination.
• The two-piece cap design applies linear load on the diaphragm seal for consistent, repeatable pressure control.
• Maximum inlet pressure up to 3600 psig (248 bar) with multiple pressure control ranges from 0 to 25 psig up to 0 to 500 psig.
• Available in PCTFE or PEEK seat materials to match cleanliness and chemical compatibility requirements.
• Isolation valves and adjustable regulator relief valves can be factory-assembled onto the regulator body.
• Knob, thumbwheel, and antitamper handle options support both frequent field adjustment and setpoint security.

Industrial Applications

The Swagelok KPR Series Regulator is deployed across laboratory gas systems, instrumentation and control panels, oil and gas facilities, and general industrial process systems wherever sensitive, stable downstream pressure control protects sensitive equipment from overpressure damage. Typical duties include cylinder pressure reduction, instrument air supply, calibration gas systems, and general process pressure control across a wide range of gases and compatible liquids.

As the officially authorized partner for Swagelok, Seven Star LLC distributes the Swagelok KPR Series Regulator to refineries, petrochemical complexes, and industrial facilities throughout Oman and the GCC. The regulator is a strong fit for instrumentation and laboratory gas systems across the Sohar and Salalah economic zones, as well as for oil and gas, research, and manufacturing plants across Muscat that require dependable, field-serviceable pressure reduction.

Technical Specifications

The table below summarizes the core specifications of the Swagelok KPR Series Regulator as supplied by Seven Star LLC.

Call To Action

Seven Star LLC supports the full procurement cycle for the Swagelok KPR Series Regulator, from formal RFQ submission to regional warehouse stock availability, technical datasheet delivery, and direct consultation with our instrumentation division on port configuration, pressure range, and seat material selection for your application. As the authorized partner for Swagelok in Oman and the GCC, we ensure every Swagelok KPR Series Regulator is delivered as genuine manufacturer product with dependable local technical support. Contact Seven Star LLC today to request a quotation or discuss your pressure control requirements.