Large Flow Natural Gas Pressure Reduction Metering Skid

Large Flow Natural Gas Pressure Reduction Metering Skid

This high-pressure natural gas filtration, metering and pressure regulating skid is engineered specifically for ultra-high pressure natural gas trunk pipeline transmission projects, with a rated flow capacity reaching 170000Nm³/h. This integrated skid integrates gas purification, accurate flow measurement, temperature compensation and automatic pressure regulation functions into one compact skid-mounted unit, fully pre-assembled and factory tested to cut on-site installation and commissioning costs.

The skid is equipped with complete process equipment: 2 vertical gas filters, 2 ultrasonic flow meters, 2 hot water circulation heat exchangers and 6 pressure regulators, matched with complete manifolds, control valves, monitoring instruments and process pipelines. It adapts to extreme fluctuating inlet working pressure of 6.3MPa to 8.8MPa, with a maximum design pressure up to 9.9MPa for high safety margin, and stably delivers outlet pressure ranging from 4MPa to 6MPa. Featuring anti-freezing heating system and dual parallel filtration design, this skid ensures safe, continuous and stable operation for high-pressure long-distance natural gas pipelines all year round.

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Detail

Product Overview

Designed for severe high-pressure natural gas transmission working conditions, this integrated filtration metering and pressure regulating skid (PRMS) is a professional turnkey solution for high-pressure gas main lines and gas distribution stations. Different from conventional medium and low pressure gas skids, this unit is upgraded for ultra-high pressure operating environments, solving core industry pain points including large pressure difference pressure reduction cooling, high-pressure pipeline impurity erosion, unstable pressure output under drastic inlet pressure fluctuation, and inaccurate large-flow gas metering.

All process equipment, connecting pipelines, valve sets and detection instruments are centrally mounted on a standardized carbon steel skid base. The whole skid completes hydraulic pressure test, air tightness test and system linkage debugging before delivery, requiring only pipeline butt joint after arriving at the project site. It realizes one-stop gas treatment including impurity filtration, flow data monitoring, temperature anti-freezing compensation and stepped pressure regulation, supporting 24-hour uninterrupted stable operation for high-pressure gas pipeline systems.

Official Supply Scope

Complete one-set integrated skid with all supporting accessories, no extra auxiliary parts required for site construction:

1 Set of Filtration, Metering and Pressure Regulating Skid
Main Core Equipment Configuration

2 sets of vertical gas filters for primary gas impurity removal
2 sets of high-precision ultrasonic flow meters for large-flow gas metering
2 sets of hot water circulation heat exchangers for pressure drop temperature compensation
6 sets of high-pressure resistant pressure regulators for stable stepped pressure reduction
Full set of supporting parts: process manifolds, manual & automatic control valves, pressure/temperature integrated instruments, complete connecting pipelines and mounting accessories

Core Technical Parameters

Parameter Item	Technical Specification
Rated Gas Flow	170000Nm³/h
Inlet Working Pressure	6.3MPa ~ 8.8MPa
Design Pressure	9.9MPa
Outlet Working Pressure	4MPa ~ 6MPa

Key Product Advantages

Ultra-high Pressure Resistance Design: 9.9MPa ultra-high design pressure matches 6.3-8.8MPa fluctuating inlet pressure, reserves sufficient safety margin, effectively resists pipeline water hammer and instantaneous pressure surge, adapting to harsh high-pressure gas pipeline working conditions.
Dual Parallel Filtration Protection: Two vertical gas filters work in parallel, intercept solid welding slag, dust and liquid condensate in high-pressure natural gas, avoiding precision meters and pressure regulators being impacted and damaged by impurities under high pressure.
Independent Anti-icing Heat Exchange System: Equipped with dual hot water circulation heat exchangers to make up massive temperature drop caused by large pressure reduction difference, prevent valve frosting and pipeline brittle fracture, suitable for outdoor low-temperature environments.
6 Sets Parallel Pressure Regulating Modules: Multi-group pressure regulators adopt segmented pressure reduction mode, coping with drastic inlet pressure fluctuation, realizing stable and adjustable outlet pressure within 4-6MPa, meeting diversified downstream pressure supply demands.
High-precision Large-flow Metering: Non-contact ultrasonic flow meters with no mechanical wear, adapt to high-pressure and large-flow gas medium, ensure long-term accurate billing metering without frequent maintenance.
Fast On-site Installation: Fully integrated skid structure, unified pipeline layout and pre-calibrated instruments, save over 60% on-site welding, debugging and equipment matching time, shorten overall project delivery cycle.

Application Scenarios

High-pressure long-distance natural gas transmission trunk lines
Primary pressure regulating station of municipal high-pressure gas pipe network
Large-scale industrial high-pressure centralized gas supply station
Natural gas pressure reducing station for energy and petrochemical enterprises

Industry Compliance & Technical Support

This high-pressure gas skid complies with ISO 9001 quality management system. We provide complete test reports, general layout drawings, P&ID process drawings and detailed operation manuals. Global 24/7 online technical guidance and remote commissioning support are available for all overseas engineering projects.

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