The leading premium copper tube manufacturer in the MENA region.

Product Specification Table

The outer diameter and wall thickness is manufactured in accordance with ASTM B743

TypeSize (OD)
Inch
mm
Wall thickness
Inch
mm
50ft/15.24m Coils
lbs
Kg
Box Qty
100ft/30.48m Coils
lbs
Kg
Box Qty
Soft Coil 
ASTM B743
1/4”6.350.024”0.6103.311.50106.623.005
3/8”9.520.024”0.6105.142.331010.284.665
1/2”12.700.028”0.7118.073.66516.147.323
5/8”15.880.028”0.71110.214.63420.429.262
3/4”19.050.032”0.81314.026.36328.0412.722
7/8”22.220.040”1.02020.389.24340.7618.482

Product Specification Table

The outer diameter and wall thickness is manufactured in accordance with ASTM B280

TypeSize (OD)
Inch
mm
Wall thickness
Inch
mm
50ft/15.24m Coils
lbs
Kg
Box Qty
100ft/30.48m Coils
lbs
Kg
Box Qty
Soft Coil 
ASTM B280
1/4”6.350.030”0.7624.031.83108.063.665
3/8”9.520.032”0.8136.693.031013.376.075
1/2”12.700.032”0.8139.114.13518.218.263
5/8”15.880.035”0.88912.535.68425.0611.372
3/4”19.050.035”0.88915.256.92330.5113.842
7/8”22.220.045”1.14322.7510.32345.4920.632

Underwriter's Laboratories (UL) Recognition

Modern HVAC/R designs and VRF systems operate with higher refrigerant pressures due to the use of next generation refrigerants (such as R-410A, R-32 or low-GWP alternatives) and tighter efficiency standards. To provide customers the highest level of assurance MME has implemented a third-party verification/recognition through Underwriters Laboratories (UL).

This performance minimizes the risk of coil failure, helps maintain system reliability, and ensures compliance with evolving building codes and environmental regulations, making Halstead® Refrigeration Service Coils a future-ready choice for any high-performance refrigeration or air conditioning design.

By meeting and exceeding UL safety and performance criteria, Halstead® Refrigeration Service Coils provide engineers, OEMs, and installers with confidence that these components will deliver long-term durability, safety, and efficiency even under rigorous operating conditions. The testing and third-party UL recognition validates performance of this product to R410A internal operating pressures of 700psi at 250°F, as per the included tables:

ASTM B743

Size
O.D.(”)
WALL(”)
Rated Internal Working Pressure (PSIG)
150°F
200°F
350°F
400°F
1/4”0.024”1,0611,020832624
3/8”0.024”700*700*540405
1/2”0.028”700*700*468351
5/8”0.028”700*700*371278
3/4”0.032”700*700*352264
7/8”0.040”700*700*380285

* UL Recognized to 700 PSI (select sizes)

ASTM B280

Size
O.D.(”)
WALL(”)
Rated Internal Working Pressure (PSIG)
150°F
200°F
350°F
400°F
1/4”0.030”1,1951,148938703
3/8”0.032”836803656492
1/2”0.032”700*700*485363
5/8”0.035”700*700*412309
3/4”0.035”700*700*341256
7/8”0.045”700*700*388291

* UL Recognized to 700 PSI (select sizes)

Highlights

+ HIGHEST PURITY COPPER

Produced in compliance with ASTM phosphorus deoxidized DHP UNS C12200 grade of copper (Cu > 99.9%, P0.015%-0.040%).

+ SUPER CLEAN COILS

Each coil is vacuumed and purged with nitrogen to obtain internal residue less than 0.0035 g/ft (as per the specified cleanness limit set by ASTM B280 & ASTM B743) to provide maximum protection against harmful oxides during soldering/brazing.

+ OPTIMIZED FOR THE JOB SITE

✓ Suitable for Variable Refrigeration Flow (VRF) Systems and modern refrigerants, including R410A, R407C, R134A, R32

✓ UL recognized to 700psi at 250 degrees Fahrenheit (in select sizes)

✓ Annealed to ensure easy field installation and tested for: 

- Elongation greater than >40%

- Flaring expansion greater than >40% of the outer diameter

- Tensile strength greater than >205 MPa

+ RIGID AND SPACE EFFICIENT

✓ Each coil is labeled with durable ink and a unique barcode for easy identification and traceability

✓ Unique rigid box design:

- Stackable 20-box high

- 15% more space efficient

- 360° identification

All our products comply with the following international standards: