Class 300 Spectacle Blind

Carbon Steel Flanges and Fittings

ISO and CE certified carbon steel flange manufacturer & Exporter which supplies 8″ Class 300 Spectacle Blind RF ASME B16.48 ASTM A516 GR 70 for Fiji.

A Spectacle Blind is a safety device and often used in pipelines where the flow needs to be changed. It is different than a valve in that the blind is a permanent or long term isolation device. ASME 16.48 Spectacle Blind has good sealing performance, plays the safe isolation function in medium pipeline system. Pay attention to match the size of flange and 8 blinks when use, the length of bolts should be extend according to the thickness of blinks.

Class 300 Spectacle Blind Dimensions

Size: 8 inch

Seal Type: Raised Face

Material: ASTM A516 Gr 70

Standard: ASME B16.48

Pipe Flange 8 Inch

Package

Put all DN200 ASTM Gr 70 Forged Steel Flanges into wooden cases and make list

Class 300 Spectacle Blind Package

ASME B16.47 Forged Flange

Inspection

Inspecting ASTM A516 Gr 70 Forged Flange according to ASME B16.47 Standard.

QA/ QC person visual check surface and marking, and measure the size.

Third party inspection: BV, SGS, LR, DNV, ABS and Stamp the mill test certificate.

Class 300 Grade 70 Spectacle Blind Inspection

Flange Dimensions Table

Standard	ASME B16.5, API 5A
Diameter Range	1/2 to 24 inch / DN15-DN600
Pressure Rate	Class 150, 300, 600, 900, 1500, 2500
Product	Slip On Flange, Threaded Flange, Socket Weld Flange, Blind Flange, Lap Joint Flange, Weld Neck Flange. Spectacle Blind.
Stainless Steel	ASTM A182 F316/316L, F304/304L, SS317, SS321, SS310
Duplex Steel	ASTM A182 F51, F53, F55
Carbon Steel	ASTM A105N, A350 LF2/LF3
Alloy Steel	ASTM A182 F1, F5, F9, F11, F12, F22 ,F91

ANSI Class 300 Spectacle Blind

Surface Treatment

Normalizing Heat Treatment

We will use anti-rust oil or black primer on all carbon steel blind flanges before delivery.

Forged Fittings and Flanges

Shipping

Delivery port: Shanghai, Tianjin, Qingdao

Lead time: 10 days are ready to deliver

Shipment: LCL, 20GP, 40GP, Air, Courier

Document: CI, PL, CO, BL, MTC

Certificate: CE, ISO, TEST REPORT

Export Country

Asia: Vietnam, Singapore, Thailand, Indonesia, Malaysia, Philippines, Kazakhstan.

Africa: Nigeria, Madagascar,Ghana, Kenya, Angola, Tanzania, South Africa.

Middle East: Saudi Arabia, Qatar, Israel, Egypt, Oman, Yemen, Jordan, Lebanon.

Latin America: Uruguay, Peru, Chile, Brasil, Ecuador, Colombia, Argentina, Paraguay

Oceania: Papua New Guinea, Australia, New Zealand, Solomon Islands, Fiji.

Europe: Greece, UK, Poland, Ukraine, France, Spain, Portugal, Norway, Sweden

ASTM A516 Grade 70 Material

Chemical Composition

C	Mn	P	S	Si	Cr	Ni
0.1-0.22	1-1.7	0.03	0.03	0.6	0.3	0.3

Mechanical Properties

Tensile Strength	Yield Strength	Elongation
485-620 (Mpa)	260 (Mpa)	20 (%)