ASME B16.48 A105 F304/L F316/L F51 F56 Figure-8 Blank and Spectacle Blind Flange

• Customization: Available
• Standard: ANSI, DIN, GB, JIS, GOST
• Type: Welding Flange
• Model NO.: DN50
• Structure: Lateral
• Connection: Welding
• Sealing Surface: RF
• Manufacturing Way: Forging
• Surface: Polished Version on Request
• Mill′s Test Certificate: En10204 3.1
• Quality Guarantee: 100% Ut Passed
• Pressure Class: From Class 150 to Class 2500
• Transport Package: in Wooden Case
• Specification: From NPS 1/2" to NPS 24"
• Trademark: KM/OEM
• Origin: China
• HS Code: 730721
• Production Capacity: 5000 PCS/Year

Product Description

ASME B16.48 A105 F304/L F316/L F51 F56 Figure-8 Blank and Spectacle Blind Flange
Product introduction
Figure-8 Blank, also known as figure 8 flange or spectacle blind flange which is combination of the two that can be rotated to function as Single Bind or a Ring Spacer. This kind of flange is generally a piece of metal than is cut to fit between two pipe flanges and usually sandwiched between two gaskets a spectacle blind is often made from two metal discs that are attached to each other by a small section of steel. The shape is similar to a pair of glasses or spectacles - hence the name spectacle blind flange. One end of the blind will have an opening to allow flow through the pipe during operation and the other end is solid to block flow during maintenance. They are generally installed as a permanent device to separate process piping system.
Spectacle Blind Flange  is usually used on the oil line with two different functions:
If the spade is put in between the flanges, it stops the fluid's passage;
If the spacer is put in between the flanges, the passage of the fluid is allowed.
Specification

Types	Spectacle Blind Flange/Figure-8 Blank/Figure-8 Flange
Standards	ASME B16.48
Materials	Carbon steel A105, A516 Gr. 60/65/70, A350 LF2, A694 F60-65, stainless steel A182 F304/304, F316/316L, alloy steel AISI Gr.1, Gr.5, Gr.9, Gr.91, Gr.11, Gr.22,duplex stainless steel F51, F53, F55, F44,
Dimensions	From 1/2" NPS to 24" NPS
Pressure Class	From class 150 to class 2500, PN6, PN10, PN16, PN25, PN40, PN64
Face Type	Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Surface treatment	Polished version on request
Inspection/test	Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, Ultrasonic flaw detector, Magnetic particle detector
Mill's certificate	EN10204 3.1
Marking	Buyer or seller's logo/standard/material/dimension/heat no
Packing	In wooden case or carton box depends on quantity
Lead time	3 days for stock, 15-20days for fresh production depends on quantity

Company Profile
From 1989 to now, Kingmetal Steel focus on manufacturing and distributing pipeline products including piping, fitting, flange, valve and fastener in stainless, carbon, alloy and duplex steel.
Kingmetal has a factory to manufacture seamless stainless steel pipe from DN6 to DN600 and distribute seamless steel pipe and fitting from top brand manufacturers such as Baosteel, Hengsteel, Tiansteel and Pansteel etc.
All of products are strictly compliance with standard, 100% inspection passed including visual, dimension and PMI test before shipment.
Both our sales and logistic teams are over 10 years of experiences and training frequently.
After- sales service with high efficiency, if any products are short quantity/weight or damaged caused by manufacturing, design or transportation can be compensated.

Inspection 

Why choose us?
One-Stop Solution
We have thousands of total production experience, from raw materials to finished products.
Competitive Price
Large scale purchase, standardized production process and efficient management make our price competitive.
Quick Shipping
Years of export experience enable us to control the transportation time more accurately.
Quality Control
The standardized production process, comprehensive management system, professional testing equipment
Special material customization
We support the customization of various complex materials
OEM/ODM
We support any form of OEM/ODM customization requirements.