Bonded Seals by Pamargan

Washer Specifications

The Pamargan bonded seal is a rectangular section, metal washer, with a trapezoidal shaped ring of vulcanised rubber bonded to the inside. Both the washer and the material can be selected to suit a given application. The seal is for use in high pressure environments where copper washers are unsuitable.

Improvements

An improvement to the original concept is the self-centralising bonded seal - designed by Pamargan - that offers additional benefits. It is available in all popular BSP sizes and many other metric sizes.

Bonded Seal Imperial Size Listing

Ref

Alternative reference A

mm

B

mm

C

mm

D

E

Min. Burst Pressure

(BAR)

Other BSP Bolt
PP45-3 003   2BA 8.38 6.35 5.21 0.20/0.38 1.22

+0.15

-0.00

1375
PP45-4 004   1/4" 13.21 8.00 6.86 2450
PP45-6 006   5/16" 13.34 9.53 8.31 1700
PP45-7 007   5/16" 14.22 10.04 8.64 1750
PP45-A 020 1/8" 3/8" 15.88 11.84 10.37 0.25/0.51 2.03

+0.15

-0.00

1500
PP45-9 009   7/16" 19.05 13.08 11.69 1900
PP45-B 021 1/4" 1/2" 20.57 15.21 13.74 1550
PP45-11 011   5/8" 25.40 18.75 16.51 1550
PP45-C 023 3/8"   23.80 18.75 17.28 1260
PP45-CC 024   3/4" 26.92 21.21 19.69 2.34

+0.26

-0.00

1260
PP45-D 025 1/2" 13/16" 28.58 23.01 21.54 1150
PP45-E 026 5/8" 7/8" 31.75 24.97 23.49 1250
PP45-F 027 3/4" 1" 34.93 28.53 27.05 1060
PP45-G 029 7/8" 1.3/16" 38.10 32.29 30.81 3.25

+0.26

-0.00

900
PP45-H 030 1" 1.5/16" 42.80 36.88 33.89 810

Special Orders

Partnerships are the growth of any business. Pamargan has now many partners all over the world locking their companies into our highly motivated workforce dedicated to customer satisfaction.

Considerable ongoing investment in new technology and quality systems has enabled the company to confidently expand its interests in other, related areas of rubber to metal bonding. Fifteen years in this specialist area has created considerable expertise in new opportunities.

We can develop PTFE to rubber bonding, plastic to rubber bonding and metal filtration gauze to rubber bonding. Please forward your Design Requirements.

Facilities range from design/prototype service to full production capability with extensive experience in mould design, rubber formulation and bonding agents. In-house, computer aided design enables prototypes to be produced with the minimum of delay.

Specifications

Metal Tensile Strength
MN/m2(Minimum)
Specification
Mild Steel Pressings
540
BS 1449 Part 1CS4 BRH5
Mild Steel Turned
540
BS 970 Part 1 EN8
Stainless Steel Pressings
540
BS 1449 Part 2 T316
Stainless Steel Turned
540
BS 970 Part 1 T303
Stainless Steel Turned
540
BS 970 Part 1 T316
Stainless Steel Turned
540
BS 970 Part 1 T304
Brass Turned
380
BS 2874 CA104
Brass Pressings
380
BS 2870 CZ108
Aluminium Bronze Turned
700
BS 2874 CA104
Aluminium Alloy Turned
370
L102 & L168
High Tensile Steel
880
S154
Aluminium Alloy Turned
370
HE 30(6086 - T6)


Surface Finish Specification
Zinc Plating Def.STAN. 03-20
Gold Passivate Def.STAN. 03-33
Cadmium Plating Def.STAN. 03-19
Chromic Anodise Def.STAN. 03-24/2
Sulphuric Anodise Def.STAN. 03-25/2
Clear Passivate Fe/Zn-5CIA
Zinc/Cobalt and Colour Passivate ZnCb-921/ST140
Mechanical Zinc Plate STD.5735,114 Fe/Zn 8 C1
Zinc/Iron and Black Chromate Fe/Zn - Fe 5 C4
Sherardize 2000 SHS 1091
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