RING JOINT GASKET

Characteristic
Ring joint gaskets are high temperature, high pressure gaskets largely used in offshore and onshore petrochemical applications. They are precision-engineered components designed to be used in conjunction with precision machined flanges. All our Ring joints are manufactured according to ASME B16.20 and API 6A.

▣ Maximum Hardness for Ring Gaskets

NOTES :(1) May be low-carbon steel, not to exceed maximum hardness of 90 Brinell-56 Rockwell “B”.
(2) Other CRAs
(2-1) Ring gaskets material shall conform to the manufacturer’s written specification.
(2-2) Hardness shall meet manufacturer’s written specification.

 

▣ Materials

 

General. Ring-joint gasket materials, some of which are listed in Table 1, shall be selected by the user based on suitability for the service conditions.
It is recommended that ring-joint gaskets be of a lesser hardness than that of the mating flanges.

Hardness.
Ring-joint gaskets of materials listed in Table 1 shall have a hardness equal to or less than that shown in Table 1

 

SSI 811R & SSI 812R

TYPE R RING GASKET DIMENSIONS AND TOLERANCES (CONT’D)

 

GENERAL NOTES

(a) All dimensions are in millimeters.
(b) Tolerances :
      P           = average pitch diameter of ring, ±0.18
      A           = width of ring, ±0.2
      B, H      = height of ring, +1.3, -0.5
Variation in height throughout the entire circumference of any given ring shall not exceed 0.5 within these  tolerances.
      C          = width of flat on octagonal ring, ±0.2
      R1        = radius in ring, ±0.5
      23 deg = angle, ±0 deg 30 min
(c) End flanges to API 6D and API 600 use gaskets for equivalent pipe size under ASME B16.5 or ASME B16.47 series A.
(c-1) Class 720, 960, and 10000 flanges to API 6B are obsolete. Data are for information only.
(c-2) R-30 is for lapped jonit only.

 

 

SSI 813 RX

TYPE RX RING GASKET DIMENSIONS AND TOLERANCES

GENERAL NOTES

(a) All dimensions are in millimeters.
(b) Tolerances :
OD = outside diameter or ring, +0.51, -0.00A = width of ring, +0.20, -0.00
Variation in width throughout the entire circumference of any ring shall not exceed 0.10 within these tolerances.C = width of flat, +0.15, -0.00D = height of outside bevel, +0.0, -0.76H = height of ring, +0.20, -0.00
Variation in height throughout the entire circumference of any ring shall not exceed 0.10 within these tolerances.R1 = radius of ring, ±0.523 deg = angle, ±0 deg 30 min
E = hole size, ±0.5

NOTES

(1) Rings RX-82 through RX-91 only require one pressure passage hole as illustrated. The centerline of the hole shall be located at the midpoint of dimension C.
(2) Tolerance on these dimensions is +0.00, -0.38.
(3) Tolerance on these dimensions is +0.5, -0.0.
(4) Class 720, 960, and 2900 flanges to API 6B are obsolete. Data are for information only.
(5) Crossover flange connection.

 

SSI 814 BX

 

 

TYPE BX RING GASKET DIMENSIONS AND TOLERANCES

GENERAL NOTES
(a) All dimensions are in millimeters.
(b) Radius, R, shall be 8% to 12% of the gasket height, H.
(c) Tolerances :
     OD = outside diameter of ring, +0.00, -0.15
      H = height of ring, +0.20, -0.00
               Variation in height throughout the entire circumference of any ring shall not exceed 0.10 within these  tolerances.
        A = width of ring, +0.20, -0.00
              Variation in width throughout the entire circumference of any ring shall not exceed 0.10 within these              tolerances.
         ODT = outside diameter of flat, ±0.05
          C = width of flat, +0.15, -0.00
          D = hole size, ±0.5
          R = radius of ring [see General Note (b)]
          23 deg = angle, ±0 deg 15 min

NOTES

(1) One pressure passage hole is required per gasket as illustrated. The centerline of the hole shall be located at the midpoint of dimension C.

 

SSI 815 Bridgeman Ring Joint Gasket

They are of unique pressure-energized type gaskets. Bridgeman’s “Principle of Unsupported Area” is made-used of for the design of these types. The gaskets are designed to seal by utilizing pressure loaded on flating head.

 

SSI 815 Bridgeman Ring Joint Gaskets’ Specific Designs

SAM SUNG INDUSTRY can supply the best quality products that manufactured in accordance with customers’ designs if customers reguire specific designs about bridgeman ring joint gaskets.

 

SSI 816 Delta Ring Joint Gasket

 

SSI 817 Lens Ring Joint Gasket

NOTES

1) Please state the required material in your order.
2) When there are no other instructions the lenses are delivered with the minimum diameters.
The final dimension of the inner diameter is to machine in accordance with the inner diameter of the used flanges.
★ The dimension “a” represents the content of the works standard 108.

 

SSI 810 IX Seal Ring

 

Clamp Seal(Seal ring for clamp connector)

This seal ring is a special type of ring gasket used for clamp connector or clamp lock. It is dimensioned to fit the customer's specifications and is coated with the same color of PTFE as IX seal