Machine Sazi Arak (MSA) with more than 40 years of experience in modem industries, technology and technical/engineering services has always played a leading role in reinforcing the country's industrial capabilities and developing, promotion and transfer of modern technologies. MSA Machining and Assembling Production Group, enjoying modem machineries, advanced production lines and experienced engineering staff, various forging, casting and machining and test shops produces different types of, wellhead equipment, and valves used in oil, gas and petrochemical industries as per the latest internationally renowned standards. Advanced secondary steel making facilities such as VODC (vacuum oxygen decarburization convertor) are employed for producing the required raw material (carbon steel, low/high alloy steel and stainless steel).
The materials for valves and wellhead equipment are as per: API 6A and NACE MR 0175 standards. Mechanical properties, metal structure stability, corrosion/ erosion and scaling resistance in different temperature and pressure conditions are guaranteed through adherence to above standards & controlling procedures such as appropriate heat treatment cycles, mechanical& hardness tests, radiography, ultrasonic, magnoflux and hydrotest.


The materials for valves and wellhead equipment are as per: API 6A and NACE MR 0175 standards. Mechanical properties, metal structure stability, corrosion / erosion and scaling resistance in different temperature and pressure conditions are guaranteed through adherence to above standards & controlling procedures such as appropriate heat treatment cycles, mechanical & hardness tests, radiography, ultrasonic, magnoflux and hydrotest.


Gate Valves

Machine Sazi Arak is the biggest manufacturers of gate valves in Iran. The valves manufactured in this production group, possessing the required high quality and functional performances,have for many years been used in different regions of the country. These valves are manufactured under the requirements of API 6A and are produced in various sizes, pressure classes, materials and qualities.

The types and specifications of the gate valves manufactured in this group are as follows:

Standard : API 6A

Size 2 1/16" to 9 "

Pressure Class : 3000 to 10000 psi

Material Class : AA to HH

Temperature Class : K to V

Other Spec : NACE MR 0175-PR2- PSL 1 to 4-Fire test – Low Pressure Gas Test

Forged body – Non Rising Stem

X-mas Tree (POGC)

The Christmas tree ordered by Pars Oil and Gas Co. is used for operation, gas flow control and guiding drilling tools/equipment of South Pars gas field wells. The Christmas tree, comprised of solid block, gate valve, ssv, ssv wire cut, elbow and cap, is fixed on the well via a 26" bottom flange. This equipment is generally exposed to very high pressures (6500 psi), sour and corrosive conditions (H2S service & high CO2 service) accompanied by friction.This equipment is manufactured under latest requirements of international standard API 6A for U temperature class (-18 ° C to 121°C) and NACE MR0175 for HH material class. All internal parts are made of highly corrosion-resistant super alloys. All internal surfaces of the equipment are also coated with super alloy materials using cladding method. To ensure the required quality and appropriate performance in South Pars gas fields working conditions, all QC tests are carried out as per API 6A.

Surface Safety Valve with Hydraulic Actuator

SSV is a gate valve used for providing safety in pipeline and wellhead equipment. These valves are designed as per API 6A and NACE MR 0175. In normal conditions when there is not sufficient pressure in actuator’s housing, a strong spring retains the valve in closed state. The valve opens as soon as enough pressure exists in actuator’s housing.

In general, the pressure of the fluid in pipeline is used for this purpose. When the pressure in pipeline is lower or higher than the pressure set on the pilots, the valve closes in a very short time. These valves are also capable of being closed from a distance (e.g. a control room).The type and number of the pilots can vary as per customer’s requirements. The hydraulic actuator can be fixed on all types of gate valves manufactured in MSA depending on the size and working pressure.

WELLHEAD ASSEMBLY: 4 1/16"- 5000 PSI-FF

To provide utmost safety, wellhead equipment is fixed on oil and gas wells. Machine Sazi Arak Machining and Assembling Production Group, possessing the required experience and capabilities, manufactures different types of wellhead assemblies including the following:

CSG 9 5/8"×TBG 4 1/2" NEW VAM WITH CONTROL LINE 1/4" NPT

MATERIAL IN ACCORDANCE WITH API 6A AND NACE MR 0175

TEMPERATURE CLASS: "P" TO "U" (-20 ° f to 250 ° f)

MATERIAL CLASS: FF , PSL2 , PR2

X-Mas Tree AG(H)-10000 Psi-FF

Completion & Production Wellhead 7 1/16"-10000 psi - FF

Fully Stainless Steel Material

NACE MR0175

PSL3G , PR2 , T/C : U

X-MAS TREE 4 1/16"-3K-M/C:FF

13 5/8” 3000PSI CLAMP HUB BOTTOM AND TWO FS-PP SEAL TO SEAL TUBING HANGER , BORE 4 1/16” , TWO MANUAL MASTER VALVES 4 1/16”-3000 PSI , ONE SURFACE SAFETY WING VALVE 4 1/16”-3000PSI AT 45° , ONE MANUAL SWAB VALVE 4 1/16”-3000PSI

MATERIAL CLASS : FF

TEMPERATURE CLASS: U

PSL2 , PR2

X-MAS TREE & Tubing Head Spool

4 1/16"- 5K-M/C:FF

MATERIAL IN ACCORDANCE WITH API 6A AND NACE MR 0175

TEMPERATURE CLASS: U

MATERIAL CLASS: FF , PSL2 , PR2

X-MAS TREE & Tubing Head Spool :

4 1/16”- 10 KM/C:FF

Material in accordance with API 6A & NACE MRO175

Temprature Class: U

Material Class: FF, PSL2, PR2

 

Design & manufacturing of wellhead equipment

Casing Spool :

API 6A Flanged & Clamped type

Size:11" to 21 3/4"

Working pressure: 2000-10000 PSI

Material Class: AA-HH

Temperature Class: K-V (-60 ° C to 121 ° C)

PSL: 1,2,3,3G,4

PR:1,2

Tubing Head Spool

Casing Head Housing

Casing Head Spool


Design & manufacturing of wellhead equipment

Hanger :

Working pressure: 3000-10000 PSI

Material Class: AA-HH

Temperature Class: K-V

PSL: 1,2,3,3G,4

PR:1,2

Casing hanger

Tubing hanger

 

Drilling Rig

Drilling rig is very important equipment in oil and gas upstream industries through which

drilling and preparation of wells for operation is accomplished. In 2006, Machine Sazi Arak Co. fabricated the structure of Fath 86 drilling rig currently in service for National Iranian Drilling

Company. This is a pyramid type structure weighing 210 tons, 54 m height with a Derrick floor area of 100 m2. This mechanism is capable of resisting a force of 1000,000 pounds and drilling to a depth of 6000m.

Fath 86 Drilling Rig

Power : 2000 HP

Digging Depth : 6000 m

Weight : 210 Ton

Height : 54 m

 

Drawworks

Machine Sazi Arak has, for the first time in Iran, accomplished the design and manufacture of drawworks or the main driving part of a drilling rig, with input HP rating 2000. This 50-ton assembly with two DC traction motors is employed for Rig up, Rig down and pull out of hole & Run in hole of Drill string & Casing string.

Technical specifications of the equipment

Power : 2000 Hp

Weight : 50 tons

Brakes : mechanical+ Eddy Current

Cooling agent : water

Clutches : pneumatic

 

Group Capabilities for heavy duty machining

Machine Sazi Arak, enjoying skilled/experienced workforce, CNC machines and high precision heavy duty machine tools, is capable of accomplishing projects such as machining main parts of hydro-electric turbines including head cover, bottom ring, rotor hub and machining high diameter rings and flanges up to 57".

Specifications of some heavy duty machine tools of Machining and Assembling Production Group:

1) Vertical turning/milling CNC Machine

- Max. work piece weight : 100 tons

- Max. work piece diameter : 12m

- Max. work piece height : 4.7m

- Machining precision : 0.01mm

2) Horizontal boring CNC machine

- Max. work piece weight : 12 tons

- Max. movement of the 3 spindles : 3×3×2.5m

- 4-spindle control

- Machining precision : .01mm

3) Heavy duty turning machine (TP 800)

- Max. work piece weight : 10 tons

- Max. work piece length : 8m

- Max. work piece diameter : 1600mm

- Machining precision : . 1mm

4) Gantry milling machine

- Max. work piece weight : 50 tons

- Distance between the columns : 2.4 m

- Bed dimensions : 2.25×4m

- Max. horizontal movement : 8.5m

- Max. vertical movement : 2.5m

 

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