Spectacle Blank

Spectacle Blank

Ahad spectacle blank is designed and manufactured to securely blank off a piece of equipment with no flow or leakage through a valve during maintenance. The flow has to be valved off and pressure relieved before loosening flange bolts and swinging the blind. Our spectacle flanges are made by premium quality materials such as carbon steel, alloy, stainless steel and so on.

Spectacle blank: 1/2"~24"

American Series: CLASS 150, CLASS 300, CLASS 400, CLASS 600, CLASS 900, CLASS 1500, CLASS 2500

Flange Facing Types
European Series: Raised Face(RF), Ring Joints Face(RJ)

Carbon Steel: ASTM/ASME A105, ASTM/ASME A516 Grade 55-60-65-70
Alloy Steel: ASTM/ASME A182 F1-F12-F11-F22-F5-F9-F91-F911-F92
Stainless Steel: ASTM/ASME A182 F304-F304H-F304L-F304N-F304LN F316-F316H-F316L-F316N-F316LN F321-F321H F347-F347H, ASTM/ASME A182 F51-F52-F53-F54-F55-F60-F61
Low-Temperature Steel: ASTM/ASME A522, ASTM/ASME A707 Grade L1-L2-L3-L4-L5-L6-L7-L8
High-Strength Steel: ASTM/ASME A694 F42-F46-F48-F50-F52-F56-F60-F65-F70

ASME B16.48-2010
API 590-1993

Industrial Processes
Die forging, Machining

Industries Served
Electrical power, petroleum, natural gas, chemical, shipbuilding, heating, papermaking, metallurgy

As a spectacle blank manufacturer in China, Ahad strives to provide the best quality butt weld fittings, industrial flanges, forged fittings and steel pipes for our global customers. Our product is ISO9000, Pressure Equipment Directive 97/23/EC (PED 97/23/EC), AD2000 Merkblatt W0, and API compliant, and is widely used by NIGC, Petrobras, Pemex, CNPC, Sinopec, and CNOOC. The pipe fittings have been exported to over 36 countries, such as Italy, Germany, Spain, France, Russia, the United States, Brazil, Iran, India, among others.
Ahad is located in Cangzhou of Hebei Province, 180 km from Beijing and 90 km from the major port city of Tianjin. Therefore, it is easy for us to acquire convenient transportation either by air, land, or sea, which lowers our production costs, and your freight charge.
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