CONTROL FLOW, INC

CERTIFICATES OF

AUTHORIZATION

ISO 9001:2015

API 6A

API 6D

API 7-1

API 16A

API 16C

API 17D

ASME - MANUFACTURER

OF PRESSURE VESSELS

“U”

Stamp

ASME – FABRICATION &

ASSEMBLY OF PRESSURE PIPING

“PP”

Stamp

NATIONAL BOARD OF

BOILER & PRESSURE VESSELS

INSPECTORS

(REPAIR)

“R”

Stamp

Control Flow, Inc.

9201 Fairbanks North Houston Road

Houston, Texas 77064

United States

This is to certify that

Certification Number:

Issue Date:

Expiration Date:

5240

Executive Director

March 31, 2020

Certificate of Authorization

is authorized to use the R Symbol in accordance with the

provisions of the National Board Inspection Code and NB-415,

Accreditation of "R" Repair Organizations.

February 7, 2017

The scope of this Authorization is limited to:

Metallic

Repairs and Alterations

At The

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