Manntek CBC User manual



CBC Operating Manual



manntek.se

Operating Manual

PR-101131-0121 Version 180905 2 of 16

Foreword

This operating manual applies to the persons using the Cryogenic Breakaway Couplings.

It is very important to read and understand this operation manual before use of this

coupling. Become familiar with the unit’s operation, applications and limitations. Be

particularly aware of its specific hazards. Store this manual in a clean area and always at a

readily available location. Additional copies at no charge can be obtained through written

requests.

IMPORTANT!!

READ THE COMPLETE DOCUMENTATION

The base for this manual follows the EU-Directives:

Pressure Equipment Directive 2014/68/EU of 15 May 2014

Potentially Explosion Atmosphere Directive 2014/34/EU of 29 March 2014



Do not make modifications that are not authorized by the manufacturer.

Read and respect all warnings and instructions provided to you.

Use only original MannTek spare parts for maintenance.

SUMMARY OF REVISIONS

Date of chan

e Description

2013-04-24 1. Edition

2014-02-17 Modified service instructions

2016-06-07 Updated photo and assembl

drawin

2018-01-09 General review & New front pa

e la

out, Updated EU-Directives

2018-09-05 Table 5 uppdated

Operating Manual

PR-101131-0121 Version 180905 3 of 16



TABLE OF CONTENT

Foreword....................................................................................................................................................... 1

Summary of revisions................................................................................................................................... 2

Table of Content........................................................................................................................................... 3

1Introduction .......................................................................................................................................... 4

1.1Intended use.................................................................................................................................... 4

1.2Product specification ....................................................................................................................... 5

1.3Technical data ................................................................................................................................. 5

1.4Breaking Pins................................................................................................................................... 6

1.5Identification plate e.g. for CBC 2½”-2½”NPT.............................................................................. 7

1.6Scope of delivery............................................................................................................................. 7

2General Safety Rules........................................................................................................................... 7

2.1Safety Instructions........................................................................................................................... 8

3Transport and Storage......................................................................................................................... 8

3.1Delivery Check................................................................................................................................. 8

3.2Complaints / Return of goods.......................................................................................................... 8

3.3Storage............................................................................................................................................ 8

4Installation............................................................................................................................................ 9

4.1Initial Operation................................................................................................................................ 9

4.2Installation........................................................................................................................................ 9

5Operation ........................................................................................................................................... 10

5.1General notes................................................................................................................................ 10

5.2Daily visual inspection ................................................................................................................... 10

5.3Dismantling.................................................................................................................................... 10

5.4Improper use.................................................................................................................................. 11

6Maintenance and repair..................................................................................................................... 11

6.1General information....................................................................................................................... 11

6.2Maintenance and service instruction............................................................................................. 12

6.3Spare parts and tools .................................................................................................................... 12

6.4Resetting after release .................................................................................................................. 13

6.5Pressure and tightness test........................................................................................................... 15

7Applicable documents........................................................................................................................ 16

7.1Declaration of Conformity.............................................................................................................. 16

Operating Manual

PR-101131-0121 Version 180905 4 of 16

1 INTRODUCTION

INTENDED USE

The Cryogenic Break-Away Coupling (CBC) acts as a safety

component in the supply line of mobile systems, preventing damage to

personnel and environment, instead of a supply hose or pipe rupture

during filling or emptying due to a change in location of the tank. The

coupling valves on the tank and on the supply line immediately close

whenever the CBC halves separates.

The CBC is specially designed for trouble free operation in cryogenic

service conditions down to -196ºC. Reliable and safe operation is

dependent upon the correct installation and handling of the equipment.

Regular and appropriate maintenance is essential to ensure both safety

and reliability over the life of the equipment. Take care that the product

is only used inside the limits of the following product specification.

There are two kinds of CBCs available. A marine type version is designed for offshore applications. The specific design

requires an installation between two hoses. It is only possible to release the coupling by axial force.

The length of the hose segments should not be less

than L=a/57,3 x (r+d/2).

L = min. required hose length

a = max. bending angle

r = min. bending radius

d = outer hose diameter

Figure 1: min. required hose length depending on bending

angle shown for hoses according to EN12115

The second CBC type is an industrial version. Regularly it is connected to a tank or a fix connection point inside a

loading station on one side and a hose or a loading arm on the other side. This makes that the CBC can be released

under a pull force angle up to 90º.

Operating Manual

PR-101131-0121 Version 180905 5 of 16

PRODUCT SPECIFICATION

Product name: Cr

enic Break-

Couplin

Sizes: 1”, 2“, 2½“, 3“, 4” and 6”

Thread Connection: NPT-Thread ANSI B1.20.1

Flan

e Connection: Flan

e EN 1092,

NSI B16.5

Other Connection: On reques

Material: EN 10272 – 1.4401/1.4404+AT

ASTM A479 – S31603 (316L)

Workin

pressure: 10 bar / 16 bar / 25 bar / 150 psi / 300 psi

Max test pressure: 16 bar / 25 bar / 40 bar / 240 psi / 450 psi

Temperature ran

e: -196ºC to +80ºC

TECHNICAL DATA

Table 1: Nominal Widths, Weight and Dimensions [mm]

NominalwidthBreakingforceConnectionkg(stainless)D[mm]L[mm]

1“3,2kN1“Thread1,774126

1“Flange4,2115132

2“13kN2“Thread2,6114178

2“Flange7,3165178

2½“22kN2½“Thread7,4140251

2½“Flange13,2191214

3“33kN3“Thread8,5174279

3“Flange15,1210222

4“52kN4“Thread15,5211320

4“Flange20,7254239

5“81kN5“NPTmale32,0269362

  5“Victaulic31,0269341

6“92kN6“Thread46,8304400

6“Flange57,6318384

Table 2: Materials

ComponentMaterialno.StandardOperatingtemperature

Housing

Checkvalve

1.4401

1.4404

EN10272–1.4401+AT

EN10272–1.4404+AT‐200°Cto250°C

Spring1.4401EN10270–1.4401‐200°Cto250°C

Operating Manual

PR-101131-0121 Version 180905 6 of 16

BREAKING PINS

Mann Teknik AB delivers breaking pins according to customer specification. The breaking force should be

specified for the weakest component.

Without any specification we supply our couplings with bolts according to the following table.

Example: On the ID-plate of the coupling the mentioned pressure rate is 25 bar. If the minimum burst

pressure of the hose is 4 times 25 bar = 100 bar. For a DN65 (2½”) coupling the standard breaking

bolts are 22 kN.

Table 4: Recommended breaking force for different hose burst pressures:

BurstpressurehoseDN25DN50DN65DN80DN100DN125DN150

30bar  4kN7kN11kN18kN28kN40kN

40bar  6kN10kN15kN24kN37kN54kN

48bar  7kN12kN18kN28kN45kN65kN

60bar  9kN15kN23kN36kN56kN81kN

68bar 92kN

80bar3,0kN12kN20kN30kN48kN75kN108kN

100bar3,2kN13kN22kN33kN52kN81kN117kN

600psi  6kN10kN15kN24kN39kN56kN

1200psi3,1kN12kN21kN31kN49kN78kN112kN

For your special application you can specify the breaking force depending on the burst pressure of

your hose or depending on another weak point in your installation.

The breaking forces become reduced by increasing internal pressure. The influence per nominal diameter is

independent from the breaking bolts. The following table shows the influence.

Table 5: Reduced force to release the coupling because of internal pressure

BreakingForceatDN25DN50DN65DN80DN100DN125DN150

0bar3,2kN13kN22kN33kN52kN81kN92kN

6bar2,6kN11,6kN19,5kN29,5kN46,3kN73,1kN80,7kN

10bar2,3kN10,6kN17,8kN26,2kN42,5kN67,8kN73,1kN

16bar1,7kN9,2kN15,3kN23,7kN36,8kN59,8kN61,8kN

25bar7,1kN11,5kN18,4kN28,3kN47,9kN44,8kN

37,5bar4,1kN6,3kN11,1kN16,4kN31,3kN21,2kN

40bar3,5kN5,3kN9,7kN14,0kN28,0kN16,5kN

150psi2,2kN10,5kN17,7kN27,0kN42,2kN67,3kN72,5kN

300psi8,1kN13,3kN20,9kN32,3kN53,6kN53,0kN

Operating Manual

PR-101131-0121 Version 180905 7 of 16

IDENTIFICATION PLATE E.G.FOR CBC 2½”-2½”NPT

Industrial T

pe Marine T

Article no: NC313D44*NC313M44*

Working Pressure PS:

Max Test Pressure PT: 25 bar

37,5 bar 25 bar

37,5 bar

Breakin

force BF: 22 kN 22 kN

Seal: PTFE PTFE

Mtrl: Stainless Steel Stainless steel

Size: DN65

–

2½“ DN65

–

2½“

*Forkeyofarticleno.pleaseaskforexplanationlist.

SCOPE OF DELIVERY

1 pcs NC313D44 Cryogenic Break-Away Coupling

In case of flange connection gaskets and bolts to mount the coupling into the application is not part of the

delivery. For NPT thread use PTFE tape for sealing (see chapter 4.2).

2 GENERAL SAFETY RULES

For a safe operation, read this manual completely before operating this product.

Failure to follow the warnings may result in serious personal injury, property damage, leakage or unexpected

separation.

Before you install any MannTek equipment it is essential to check that the material and performance

specifications are acceptable for your specific application. The pressure ratings and primary materials of the

couplings are clearly indicated on the identification plate of each MannTek product. A drawing showing the

materials of construction relating to each individual component is available upon request. Specification

checks should always be carried out before the product is supplied, but if unsure, ask!

As with all equipment, a check should be made to ensure that the installation fulfils the requirements of

applicable prevailing industry, local, national and international standards. Particular attention should be paid

to pressure ratings, safety factors and the position of upstream and downstream affiliated closures.

Operating Manual

PR-101131-0121 Version 180905 8 of 16

SAFETY INSTRUCTIONS

Wear proper safety clothing consists of thermal gloves, full face shield

approved for cryogenic use and solid shoes capable to withstand cryogenic

spill whenever operating Cryogenic Break-Away Couplings.

Make sure the operating space is clear to avoid accidental contact with others and the

coupling interface is clean and dry. Use dry air or nitrogen to blow out the coupling

interface.

Do not use the CBCoupling in any way, not described in the specification. The user is

responsible to comply with all applicable federal, state and local laws and regulations.

Do not operate the CBCoupling if there is any visible damage. Stop immediately if

leakage occurs.

Make sure that there is no trapped liquid or excessive pressure.

Authorized and qualified personnel must carry out all assembly and maintenance

operations as described in this operating manual.

3 TRANSPORT AND STORAGE

The product may only be transported or stored absolutely clean. Suitable protection must be used for both

openings to ensure no damage occurs to the surfaces/sealed areas. The storage location must guarantee

adequate protection from corrosion or extreme temperatures.

DELIVERY CHECK

Check for any transportation damage. If so report this immediately to the forwarder.

Check that the products and quantities are in accordance with the delivery note.

COMPLAINTS /RETURN OF GOODS

If returning goods please contact Mann Teknik AB to receive a Complaint Report form.

Complete the form with as much details as possible.

Return the goods with the Complaint Report attached on the outside of the package!

STORAGE

Store coupling in a dry, dust free, dark place, in ambient temperature.

Operating Manual

PR-101131-0121 Version 180905 9 of 16

4 INSTALLATION

INITIAL OPERATION

The correct installation of all MannTek products is essential to ensure safe and satisfactory operation.

Checks should be made to ensure that the fitting of MannTek products does not interfere with the correct

operation of affiliated equipment (i.e. isolation valve, excess flow valves, etc). Before securing the flange or

thread connections to mating equipment (i.e. hose, loading arm and storage tank) ensure that no foreign

objects, dirt, grit, water (moisture) etc. are present in the coupling.

All flange and thread connections should be made without imparting excessive strain to the equipment. All

gaskets and sealing materials used to make the permanent connection should be of suitable material.

Each MannTek product is designed to take reasonable axial loads associated with good handling practice

but is not designed to accept continuous excessive load values associated with maladjustment or poor

installation. Continuous excessive strain will equate to increased component wear and possibly premature

failure if not corrected.

When MannTek equipment is used with hoses, attention should be paid to hose length to ensure correct

handling characteristics. The hose assembly should be designed such that the minimum hose length is

supported by the coupling or the operator. Hoses should be of sufficient length to ensure operation well

within the stipulated hose minimum bend radius up to the maximum operation envelope.

INSTALLATION

When installing MannTek equipment to new pipe work, tanks, etc. ensure the system is free from debris that

may be transferred through the coupling. Where the hose or loading arm assembly is the primary static

dissipation or earth route, the electrical continuity value of the assembly shall be checked to ensure

regulatory compliance. Special attention should be paid to the balancing of loading arms. It is usual for

loading arm balance settings to account of weight variations due to differences in the full / empty cycle. The

loading arm should be set to balance in the condition present at the time of connection.

Before mounting the CBCouplings ensure that trapped liquid never can occur in the installation. In

combination with a Dry Cryogenic Coupling or Emergency Shut Down Valve measures shall be taken to

ensure that no liquid can be trapped in any operating mode.

Then the CBCoupling can be installed directly in the product line and is ready for use after removing the

transport protection.

Operating Manual

PR-101131-0121 Version 180905 10 of 16

The installation is as follows:

Remove the packaging.

Check the coupling for damages before mounting.

Ensure that the product line is empty and all valves are closed before you assemble the coupling

into the line.

To prevent damages during mounting a suitable wrench should be used for the intended nut flats

on the coupling (threaded connection) or the bolts (flanged connection).

Usealwaysafittingwrenchtomountthecouplingtoahose,apipeor

atank.Tightenthefittingusingthewrenchontherespectiveside

wheretheconnectionismade.

Torqueforcesshouldneverbe

transferredviatheCBCouplingand

thebreakingpins.

The start-up may take place only when the CBCouplings has been mounted as instructed and the necessary

function tests and leak tests have been conducted by the approved authorities.

5 OPERATION

GENERAL NOTES

Operators are obliged to provide qualified and trained personnel familiar with the handling of supply pipes,

safety couplings, any fluid being pumped as well as its danger potential. Such staff must also be familiar with

the applicable safety regulations and the regulations of the employer’s liability association.

DAILY VISUAL INSPECTION

All couplings should be inspected at the start of each day’s operation. Check for leakage and any obvious

physical damage (such as impacts, etc.).

DISMANTLING

When the CBCoupling is taken out of service, the risk of liquid or gas spurting out should be taken into

consideration. Special protective measures such as personal protection equipment must therefore be

adopted.

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