---
certificate:
  number: R49/2024-A-CZ1-25.05
  scheme: A
  page_total: 3
  member_state: Czech Republic
  date_issued: '2025-10-23'
  oiml_issuer_id: CZ1
issuing_authority:
  name: Czech Metrology Institute
  address_lines:
  - Okružní 31, 638 00 Brno, Czech Republic
  person_responsible: Jan Kalandra
  oiml_issuer_id: CZ1
applicants:
- name: Ningbo Yuxing Water Meter Co., Ltd.
  address_lines:
  - NO.19 Meishan Rd, Shangtian Str, Fenghua, Ningbo, Zhejiang, CN
manufacturers:
- name: Ningbo Yuxing Water Meter Co., Ltd.
  address_lines:
  - NO.19 Meishan Rd, Shangtian Str, Fenghua, Ningbo, Zhejiang, CN
certified_type:
  category: water meter
  type_designations:
  - LXSG-15E/S
  - LXSG-20E/S
  - LXSG-25E/S
  module_designation: N/A
  description: 'multi jet, dry dial, Temperature class: T30, T50'
characteristics:
  type_level:
    q2_over_q1:
      value: 1.6
    q4_over_q3:
      value: 1.25
    measuring_principle:
      value: multi jet
    accuracy_class:
      value: '2'
    temperature_class:
      value: T30
    water_pressure_class:
      value: MAP16
    pressure_loss_class:
      value: ΔP63
    maximum_admissible_temperature:
      value: 30
    maximum_admissible_pressure:
      value: 1.6
    orientation_limitation:
      value: Horizontal with the dial at the top
    resolution_of_indicating_device:
      value: 0.1
    indicating_range:
      value: 99999
    minimum_straight_length_inlet_pipe:
      value: 0
    minimum_straight_length_outlet_pipe:
      value: 0
    flow_profile_sensitivity_class:
      value: U0D0
    flow_conditioner:
      value: 'No'
    mounting:
      value: in-line
    orientation:
      value: horizontal
    reverse_flow:
      value: Not designed to measure
    mechanical_environment_class:
      value: B/M1
    data_output_options:
      value: 10/100/1000
  model_level:
  - attribute: q1
    unit_symbol: m³/h
    values:
    - model: LXSG-15E/S
      value: 0.016
    - model: LXSG-20E/S
      value: 0.025
    - model: LXSG-25E/S
      value: 0.039
    unit_id: u:cubic_meter_per_hour
  - attribute: q2
    unit_symbol: m³/h
    values:
    - model: LXSG-15E/S
      value: 0.025
    - model: LXSG-20E/S
      value: 0.04
    - model: LXSG-25E/S
      value: 0.063
    unit_id: u:cubic_meter_per_hour
  - attribute: q3
    unit_symbol: m³/h
    values:
    - model: LXSG-15E/S
      value: 2.5
    - model: LXSG-20E/S
      value: 4.0
    - model: LXSG-25E/S
      value: 6.3
    unit_id: u:cubic_meter_per_hour
  - attribute: q4
    unit_symbol: m³/h
    values:
    - model: LXSG-15E/S
      value: 3.13
    - model: LXSG-20E/S
      value: 5.0
    - model: LXSG-25E/S
      value: 7.88
    unit_id: u:cubic_meter_per_hour
  - attribute: q3_over_q1
    values:
    - model: LXSG-15E/S
      value: 160
    - model: LXSG-20E/S
      value: 160
    - model: LXSG-25E/S
      value: 160
  - attribute: connection_type
    values:
    - model: LXSG-15E/S
      value: G3/4B
    - model: LXSG-20E/S
      value: G1B
    - model: LXSG-25E/S
      value: G11/4"B
    - model: N/A
      value: N/A
  - attribute: ''
    values: []
  config_level: []
recommendation:
  id: R49
  edition: 2024
  scheme: A
  accuracy_classes:
  - '2'
test_reports:
- id: 0511-ER-V011-24
  date: '2025-10-21'
  pages: 49
  role: type_evaluation_report
revision_history:
- revision: '0'
  date: '2025-10-23'
  changes: Issuing certificate
model_family:
  family_name:
  models:
  - model_id: LXSG-15E/S
  - model_id: LXSG-20E/S
  - model_id: LXSG-25E/S