ABOUT US
EXPERT SERVICE
Engineering solutions for safe operation of hazardous industrial facilities
EXPERT SERVICE LLP has been operating since December 2011.
Our mission is to provide the customer with objective information
on the technical condition of equipment to enable informed engineering
decisions and ensure compliance with the legislation of the Republic of Kazakhstan.
We support hazardous industrial facilities of oil and gas, energy, and other industrial enterprises.
WHEN TO CONTACT US
We are contacted in situations where it is necessary to quickly make a technical decision and ensure the legal operation of equipment.
Turnaround Maintenance
Required to perform comprehensive diagnostics and testing in tight deadlines to minimize facility downtime.
Industrial Safety Examination (ISE)
Examination for obtaining Use Permit (UP) or extending equipment service life.
Valve Repair and Calibration (PRV/PSV)
When equipment fails testing or requires onsite performance restoration.
Non-Destructive Testing (NDT)
Inspection of welded joints, steel structures, and pipelines using UT, RT, MT, PT, and VT methods.
Restoration of Documentation
Manufacturing duplicates of technical passports and issuing conclusions for equipment that has completed its standard service life.
Urgent Mobilization
Prompt dispatch of an expert group to remote sites (Tengiz, Kashagan, Karachaganak, etc.).
Personnel Training
Preparation and knowledge testing of employees regarding industrial safety and occupational health and safety requirements.
ENGINEERING AND TECHNICAL CAPABILITIES
We guarantee the resolution of the most complex tasks thanks to our own manufacturing and technical base.
Mobile Workshop ST 20-4
A 20-foot container complex for repair, lapping/machining and testing of valves directly at the customer’s site.
Pressure Testing up to 160 MPa
The use of PKTBA pneumohydraulic stations allows for liquid pressure creation up to 160 MPa for testing vessels and valves.
Testing according to International Standards
Tests are performed on Ventil test benches in accordance with API 598, ISO 5208, and EN 12266-1 protocols.
Full Scope of NDT Inspection
Using modern equipment to perform all methods of non-destructive testing with high accuracy and reliability of results.
Mobile Laboratory
Specialized transport for rapid mobilization of non-destructive testing groups and field work.
INTERNATIONAL QUALITY STANDARDS
ISO 45001:2018
ISO 9001:2015
ISO 14001
NCA
Compliance with World and State Standards
ГОСТ 33257-2015
Pipeline valves. Control and testing methods
ST RK ISO 8573-1-2015
Compressed air. Purity classes
GOST 15150-69
Climatic design UHL4
TR CU 010/2011
On safety of machinery and equipment
ISO 4126-1:2013
Safety devices for protection against excessive pressure
API 526 & 527
Flanged Steel Pressure Relief Valves & Seat Tightness of Pressure Relief Valves
ASME PTC 25-2014
Pressure Relief Devices
Economic Effect for the Customer
01
Reduction of Downtime
No waiting for third-party repair crews, diagnostics and repairs are performed in parallel.
02
Single Point of Accountability
We are responsible for both defect identification and its elimination.
03
Budget Optimization
Reduction of transaction costs associated with managing multiple contractors.
04
Increased Profitability
Through an integrated approach to extending asset lifecycle.
When time matters — we are already on our way
Our Services & Competencies
Pressure equipment: boilers, vessels, pipelines, oxygen cylinders
Tank farm: inspection of storage tanks of any purpose
Lifting facilities: cranes and lifting mechanisms
Steel structures: inspection of joints and welded connections
Manufacturing and restoration of technical passports
Leakage testing of isolation valves
- Visual and Dimensional Testing (VT).
- Ultrasonic Testing (UT).
- Radiographic Testing (RT).
- Magnetic Particle Testing (MT).
- Liquid Penetrant Testing (PT).
- Metal Hardness Testing.
Pressure Equipment: steam and hot water boilers, vessels, process piping, oxygen cylinders.
Tank Farm: comprehensive inspection of tanks of any purpose and reservoirs for storage of petroleum products.
Lifting Equipment (LE): diagnostics of cranes and other lifting mechanisms
Steel Structures: inspection of joint and welded connection states of civil and industrial structures.
Testing of metal ladders: fire, extension, step, single, and roof railings.
Quality assessment of fire-retardant coating: verification of the preservation of structural wood elements protection.
Testing of safety systems for work at height: safety systems, ropes, slings, safety belts, and evacuation systems.
Testing of load-gripping devices: slings (chain, wire rope, textile), hooks, etc.
Leakage testing of pipeline valves and breather valves
Full cycle of PRV and PSV valve repair: disassembly, root cause analysis, mechanical machining (lapping/grinding), calibration, and verification.
Industrial Safety Examination (ISE) for obtaining Use Permit (UP).
Manufacturing and restoration of technical data sheets (duplicates) for all types of equipment.
Extension of residual lifetime and legalization of further operation.
ENSURING INDUSTRIAL SAFETY
Fire-Technical Minimum
Safe operation of pressure vessels
Hydrogen Sulfide (H2S) safety
Occupational health and safety
Safe operation of compressor stations
Responsible person for supervision of safe operation of lifting cranes, removable load-gripping devices and containers
First Aid Delivery
Pendant-controlled crane operator
ENSURING INDUSTRIAL SAFETY course for engineering and technical workers
"Lifting Mechanisms" course for the person responsible for safe work execution using cranes for load movement
Development of special professional competencies on safety and occupational health issues
Occupational safety and health management during work at height
Safe work in confined spaces
Slinger / Rigger
Signaler
Technical Base
EQUIPMENT FOR TESTING AND REPAIR
Container for Testing and Repair of Safety and Shut-off/Regulating Valves Model CT 20-4
A fully equipped test container for on-site repair and testing of all standard shut-off, safety, and regulating valves, as well as high-pressure hoses. The 20-foot workshop-container contains all necessary tools and equipment for valve assembly (disassembly) and light repair.The built-in combined test bench is equipped with 3 clamps for safety valves and a special clamping system for shut-off and regulating valves, specially designed and equipped for container applications.
VALVE TESTING WORKSHOP: TEST STAND MODEL VC25-HC25-CC
Ventil VC25-HC25-CC - is a universal test bench for pressure testing of shut-off valves, control valves, and pressure relief valves in the range of 1/2- 10" / DN 15- 250 mm. Important and unique features| TEST SYSTEMS | ||
|---|---|---|
| 1 | LP Air test system | (0–7 bar / 100 psi / 700 kPa) |
| 2 | Gas test system | (0–300 bar / 4,350 psi / 30,000 kPa) |
| 3 | Liquid test system | 0–400 bar / 5,800 psi / 40,000 kPa |
| 4 | Seat leakage test system | (Bubble counter according to API and EN standards) |
| MAXIMUM TEST PRESSURE PER VALVE SIZE* | GAS / LIQUID PRESSURE | |||||
|---|---|---|---|---|---|---|
| INCH | MM | #150 | #300 | #600 | #900 | #1500 |
| ½ - 2 | 15 - 50 | 400 bar / 5,800 psi | ||||
| 2½ - 3 | 66 - 80 | 300 bar / 4,350 psi | ||||
| 4 | 100 | 200 bar / 2,900 psi | ||||
| 6 | 150 | 100 bar / 1,450 psi | ||||
| 8 | 200 | 60 bar / 870 psi | Contact us for smaller, larger and custom build solutions |
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| 10 | 250 | 40 bar / 580 psi | ||||
Mobile Testing Complex Ventil CT-800 U
Specialized solution for testing breather and safety valves
- 1. Key technical parameters
- • Range of tested valves: 50 to 600 mm (nominal diameter).
- • Maximum clamping force: 12 tons (120 kN).
- • Test medium: Gas (compressed air or nitrogen).
- • Storage tank capacity: 50 liters (ensures pressure stability during valve actuation).
- 2. Equipment fixation system
The test bench is equipped with a reliable quick-clamping system, which includes:
- • Manual four-jaw mechanism: allows fixing the valves by the inlet flange.
- Adaptability: ability to use different number of clamps depending on the test pressure.
- • Versatility: the design of the clamping table is optimized for working with a wide range of valve models.
- 3. Capabilities and precision
The complex allows performing a full cycle of mandatory checks:
- • Opening pressure determination: high adjustment accuracy due to the combination of a precision regulator and a shut-off valve.
- • Gate tightness control: precision regulation system allows identifying minimal leaks in the valve seat.
- • Metrological reliability: the device is equipped with a set of calibrated pressure sensors.
- 4. Control and safety
The control panel is designed for maximum safety and comfort of the operator:
- • Pneumatic drive: includes air preparation system with filter, regulator and flow control.
- • Protection system: integrated automatic interlock and audio/visual alarms to prevent emergency situations during testing.
- • Ergonomics: all controls are located on the front panel; silencers are provided on the gas discharge line to reduce noise levels.
- • Component protection: built-in mechanical filters at the inlet protect internal system components from contamination.
Capabilities for testing and certification of PRV (pressure relief valves) and PSV (safety valves)
Pneumohydraulic station with control system for test bench model PKTBA
Test bench for hydrostatic and pneumatic testing of pipeline valves DN 10-400 мм,
Pmax63МПа is designed for hydrostatic and pneumatic testing of pipeline valves with nominal diameters of 10–400 mm. The maximum test pressures for valves of different sizes are shown in the table below:
| Nominal valve diameter DN, мм (NPS, дюйм) |
Maximum test pressure Pmax, МПа (bar) |
|---|---|
| 10(3/8)–80 (3) | 63 (630) |
| 100 (4) | 60 (600) |
| 125 (5) | 40 (400) |
| 150 (6) | 28 (280) |
| 200 (8) | 15 (150) |
| 250 (10) | 10 (100) |
| 300 (12) | 7 (70) |
| 350 (14) | 5,5 (55) |
| 400 (16) | 4 (40) |
PKTBA-PGS-M050
Mobile high-pressure pneumohydraulic testing station
Технические характеристики
160 MPa — maximum hydraulic test pressure.
0.6 MPa — maximum pneumatic test pressure.
Equipment for testing process control in accordance with world standards (API, ASME, ISO, GOST).
Основные функции и возможности
- Creation of high pressure of testing media.
- Process control as part of a test bench.
- Absolute mobility: movement to any point of the workshop for pneumatic and hydraulic testing.
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Industries: Refining and petrochemical industries. |
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Safety: Strictly outside explosive areas (free of conductive dust and corrosive gases). |
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Climate: Closed heated rooms (+5 °C ... +40 °C). Category UHL4 (GOST 15150). |
Рабочие параметры и требования к испытательным средам
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Air / Pneumatic testing Medium supplied to the station: Compressed air (purity class [7:8:4] per ST RK ISO 8573-1-2015). Inlet pressure: 0.6 - 1.0 MPa. Outlet test medium: Air (purity class [6:8:4]). Low pressure operating range: 0.05 - 0.6 MPa |
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Water / Hydrotesting: Medium supplied to the station: Drinking water (ST RK GOST R 51232-2003). Filtration: not coarser than 100 microns OR from pressurized system at 0.1 - 0.4 MPa. Outlet test medium: Water (5 microns filtration). High pressure operating range: 16.0 - 160.0 MPa |
Компетенции: Неразрушающий контроль (NDT)
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