Minnesota High-Pressure Piping Laws And Rules

Front 1

In the state of Minnesota high-pressure piping means all high pressure piping used in the installation of hot water or steam heating boilers for any system of hot water piping or medium used for heating that exceeds what degrees?

Back 1

250 degrees

Front 2

In the state of Minnesota high pressure steam is defined as Steam exceeding pressures of how many pounds per square inch?

Back 2

15 psi

Front 3

In the state of Minnesota what is the basic fee for the application of permit before adding additional for dollar amount in the contract?

Back 3

$150

Front 4

In the state of Minnesota high-pressure piping partially includes water or other medium used for heating (other than steam) that exceeds what PSI?

Back 4

30 PSI

Front 5

In the state of Minnesota after you have paid your basic inspection fee how much additional must you pay for the first 1 million dollars?

Back 5

.022 of the first 1 million dollars

Front 6

In the state of Minnesota, when timely pulling a permit, after you have paid your basic fee , and Computing the amount up to 1 million dollars, what is the factor for the next 2 million dollars?

Back 6

+ .011 of the next two million dollars

Front 7

In the state of Minnesota, if filing for permit timely , what the percentage for amounts over three million dollars?

Back 7

.00055 of the amount over three million dollars

Front 8

In the state of Minnesota, if you file for your application permit late, what is the minimum amount you must pay for your inspection fees?

Back 8

$1,100

Front 9

In the state of Minnesota, if you file for inspection fees late, after paying the minimum amount , what is the fees for up to 1 million dollars.

Back 9

It shall be the greater of $1,100 or $150 plus .033 of the first million dollars

Front 10

In the state of Minnesota if you file your inspection fees late what is the amount you must pay after initial application fee plus the initial $1000000 fees between 1 million and 2 million dollars as a percentage?

Back 10

.0165 of the next 2 million dollars

Front 11

In the state of Minnesota, if you file for an application permit after construction has begun, what is the amount you must pay after paying initial fee plus the first three million dollars fees, for each dollar above 3 million dollars?

Back 11

.011%

Front 12

In the state of Minnesota, when you apply for permit, what else must you have?

Back 12

Contractors pipe fitter license.

Front 13

In the state of Minnesota, you must have a high pressure license, to do what?

Back 13

Construct or install high-pressure piping, or sell high pressure pipe materials and supplies.

Front 14

Can a pipe fabrication shop perform fabrication of high-pressure pipe, with only a part-time employee holding a journeyman license?

Back 14

No, a full-time employee must be employed at the facility performing the work.

Front 15

What is the minimum bond amount for a high-pressure piping business license?

Back 15

$15,000

Front 16

What insurance, in the state of Minnesota, is required to insure property as a minimum?

Back 16

$50,000

Front 17

In the state of Minnesota, products liability insurance must have limits of at least how much per person and how much per occurrence?

Back 17

$100,000 per person and $300,000 per occurrence

Front 18

Is a Contracting high-pressure pipe fitter license a master license?

Back 18

Yes

Front 19

Does the state of Minnesota have reciprocity with other states?

Back 19

The state of Minnesota May issue a temporary license if they determine that a person licensed in another state has equivalent standards to the state of Minnesota.

Front 20

What is the maximum. That an applicant can work with a temporary license.

Back 20

A person with a temporary license can work up to five (5) years before complying with the Minnesota standard and obtaining their own license.

Front 21

How long must a person work with a temporary license in the state of Minnesota comma before he can apply and take the test for a Minnesota license.

Back 21

24 months

Front 22

How long is a high-pressure pipe license good for before it expires.

Back 22

After the year 2012, all licenses shall be two-year licenses

Front 23

What month and day does a pipefitter license expire?

Back 23

December 31st

Front 24

In Minnesota, in addition to pressure and temperature, what are the other types of systems require a license to perform?

Back 24

Any ammonia piping used for refrigerant systems or any bio process piping.

Front 25

Does the state of Minnesota require a license for all ammonia piping systems?

Back 25

No, only those used for refrigeration.

Front 26

Does Bioprocess piping include piping used to make bio food products or to treat waste?

Back 26

No, only piping equipment used for conveying live organisms for medical , research or pharmaceutical purposes

Front 27

Can direct supervision of an unlicensed pipefitter be done from another physical location?

Back 27

No they must be present and immediately available.

Front 28

Can supervision of an unlicensed pipefitter be done through electronic supervision?

Back 28

No, the supervision must be physically present and immediately available.

Front 29

What is the maximum amount of unlicensed pipefitters a journeyman license pipefitter in the state of Minnesota can supervise. What is the ratio?

Back 29

Each licensed person can supervise a maximum of two unlicensed people

Front 30

What is the definition of other medium used for heating?

Back 30

It means hot oil or other liquid that transfers heat without a phase change.

Front 31

Does "Other medium used for heating" include products within Refinery and chemical process complexes that exchange heat with other products streams as part of the core process?

Back 31

No, these processes are excluded from the Minnesota high pressure piping licensing.

Front 32

In the state of Minnesota, does a piping system include bolting material and gaskets?

Back 32

Yes. Also valves fittings and other pressure containing elements.

Front 33

Are hangers and supports included under the Minnesota high-pressure piping laws when used on high-pressure piping?

Back 33

Yes

Front 34

What is the minimum age requirement for a Contracting high pressure pipe fitter?

Back 34

21 years of age

Front 35

To be a Contracting high pressure pipe fitter in the state of Minnesota, how long must you have worked in the trade of high-pressure pipe fitting?

Back 35

5 years minimum experience

Front 36

To be a journeyman in the state of Minnesota, what is the minimum age and years of experience required.

Back 36

A journeyman pipefitter must be at least 20 years of age and have a minimum of four years experience in high-pressure pipe fitting.

Front 37

If an applicant fails their exam, what must they do? What must be done to obtain a license?

Back 37

The applicant must reapply, submit a new application and examination fee. They cannot retest for 30 days.

Front 38

How often must a high-pressure pipe fitter business license be renewed?

Back 38

That must be renewed annually on a calendar year basis. This would be January 1 through December 31

Front 39

Must the qualifying person for Contracting license, who is a employee in a high-pressure piping business license , work full time for that business?

Back 39

Yes.

Front 40

Does a journeyman pipefitter license allow an employee to work as a qualifier for the Contracting license?

Back 40

No, the contractor's license qualifier must pass on exam to qualify him for that position.

Front 41

Who pays for non-destructive testing?

Back 41

The installing contractor.

Front 42

According to the current Minnesota laws in 2016, what year is applicable for the asme code for power boilers?

Back 42

2013

Front 43

Are economizers, heaters, tanks and other pressure vessels part of this HPP scope?

Back 43

No, but connecting piping shall conform to the Minnesota HPP requirements.

Front 44

Asme b 31.1 means what year addition in 2016?

Back 44

The 2012 edition, except as amended by Minnesota statutes chapter 5230 + 5231

Front 45

B 31.1 2012 edition, states pressure exceeding 160 PSI of high temperature water, must be performed per the code. What is the Minnesota ammended requirement for high temperature water PS I that shall fall under Minnesota HPP requirement.

Back 45

Pressures that exceed 30 PSI of high temperature water (or greater than 15 PSI of steam)

Front 46

What chapter of asme B 31.1 is excluded from the Minnesota requirements?

Back 46

Chapter 2, except part 1 and 2

Front 47

According to Minnesota HPP code, is a pressure gauge required to be installed on both sides of a single prv?

Back 47

Yes

Front 48

If two PRVs are installed in series , must a pressure gauge be installed on both sides of both of the P R Vs?

Back 48

No, but a pressure gauge must be installed on the low side of both of the p r v.

Front 49

According to the Minnesota Code for ammonia refrigeration systems , any liquid used for the transmission of heat without a change of state is referred to as what?

Back 49

Brine

Front 50

According to the state of Minnesota code for ammonia refrigeration systems, the parts of an ammonia refrigeration line at any pressure, intended to be wholly filled with liquid refrigerant, is called a what?

Back 50

Liquid line

Front 51

According to the Minnesota code for ammonia refrigeration systems, carbon steel liquid lines must utilize what grade and types of pipe?

Back 51

A106 seamless pipe, or A333 seamless pipe

Front 52

According to the code for ammonia refrigeration systems in the state of Minnesota, what materials type is allowed for discharge line of a pressure relief device?

Back 52

A type F butt weld pipe is allowed.

Front 53

What must be provided to a Minnesota inspector to verify heat numbers on pipe and compliance.

Back 53

Mill test reports

Front 54

According to the Minnesota code for ammonia refrigeration systems, the national code ASME B31 code is amended so that what size pipe and smaller must use schedule 80?

Back 54

One and a half inch and smaller

Front 55

According to the code for ammonia refrigeration systems in Minnesota, what size carbon pipe can you schedule 40 or greater?

Back 55

2 inch pipe through 10 inch pipe

Front 56

According to the code for ammonia refrigeration systems in the state of Minnesota, what size carbon pipe and larger can use a standard weight pipe?

Back 56

12 inch and larger

Front 57

According to the code for ammonia refrigeration systems in the state of Minnesota, what size stainless steel pipes must use schedule 40 or greater?

Back 57

Three-quarter inch through 6 inch

Front 58

According to the code for ammonia refrigeration systems in the state of Minnesota, what size stainless steel pipe can use schedule 10 or greater?

Back 58

8 inch pipe and larger can use schedule 10

Front 59

According to the state of Minnesota code for ammonia refrigeration systems, can a quarter-turn valve be utilized

Back 59

Yes

Front 60

According to the code for ammonia refrigeration systems in the state of Minnesota, what is the minimum time allowed for an automated quarter turn valve to open?

Back 60

60 Seconds

Front 61

According to the state of Minnesota ammonia refrigeration system code, what length pipe must be installed as a drip pocket under a vertical Riser on a discharge pipe?

Back 61

24 inches in length

Front 62

According to the Minnesota code for ammonia refrigeration systems, what must be fitted onto a drip pocket of a discharge line?

Back 62

A drain plug or valve.

Front 63

According to the state of Minnesota code for ammonia refrigeration systems, if a pressure vessel has over 10 cubic feet, what shall it be protected with?

Back 63

One or more dual pressure relief devices.

Front 64

According to the state of Minnesota code for ammonia refrigeration systems, what valves shall be installed with the Dual pressure relief valves?

Back 64

A three-way valve to allow testing or repair.

Front 65

According to the Minnesota code for refrigerator piping, when two pressure release valves are installed on a pressure vessel, what are the requirements of the valves.?

Back 65

Both valves must meet the requirements of the section code and the sum capacity for each valve must meet or exceed the requirements

Front 66

What is the minimum schedule pipe required for discharge piping in an ammonia system according to the state of Minnesota ammonia Refrigeration pipe code?

Back 66

Schedule 40

Front 67

According to the state of Minnesota code for ammonia refrigerator piping, what must be provided to an administrative Authority after testing the high and low side of a system.

Back 67

A Declaration of pressure applied to the high and low side of the system, "signed" by the installer or if permitted the owner or their representatives and the administrative Authority.

Front 68

What is the maximum size pipe that can be threaded in an ammonia Refrigeration piping system according to the state of Minnesota code?

Back 68

One and one-quarter inch and smaller

Front 69

According to the code for the state of Minnesota ammonia refrigerator threaded piping must be what schedule and type of manufacturing process?

Back 69

Schedule 80 seamless

Front 70

According to the state of Minnesota code for ammonia refrigeration systems, threaded fittings must be rated to what PSI?

Back 70

2000 PSI

Front 71

What type of manufacturing process must be used for threaded fittings in an ammonia system according to the Minnesota code?

Back 71

Forged fittings

Front 72

According the state of Minnesota code for ammonia refrigerator piping, what PSI, and Manufacturing type must be used for socket weld fittings 1-1/2 inches and less?

Back 72

2000 pound forged Steel must be used for all socket welds

Front 73

According to the state of Minnesota refrigerator ammonia piping code, what size pipe and greater must be welded?

Back 73

1 1/2 inch and greater

Front 74

According to the state of Minnesota ammonia piping code , what size pipe must use socket welds?

Back 74

1 1/2 inch and smaller

Front 75

According to Minnesota ammonia Refrigeration piping code, what is the maximum size pipe that can utilize a union?

Back 75

Three-quarter inch and smaller

Front 76

According to the refrigerator ammonia piping code in Minnesota, what must a union be rated in PSI?

Back 76

2000 pound per square inch

Front 77

According to the Minnesota ammonia refrigerator piping code, what must be used in branches, run outs, laterals, and saddles for 2 inches nominal size pipe and smaller?

Back 77

A forged steel tee, Weld-o-let, Thread-o-let , with a 3000 pound rating.

Front 78

According to Minnesota ammonia refrigerator piping code , what minimum PSI rating is required in forged fittings that exceed two inches in branches, run out, laterals, and saddles?

Back 78

2000 PSI

Front 79

According to the Minnesota ammonia Refrigeration piping code, flanges must be of what type?

Back 79

Tongue and groove type or raised face type rated and designed for ammonia service.

Front 80

According to the Minnesota ammonia Refrigeration code, branches or run out the same size as the main must be connected using what?

Back 80

Forge steel tee fittings

Front 81

Visual examination and non-destructive examination of welds shall comply with the standards of what asme code?

Back 81

Asme B 31.5

Front 82

According to the Minnesota high-pressure piping code, 3 permit payment alternatives are available, these alternatives are?

Back 82

Lump sum payment, quarterly payment, or annual payment , a non-refundable $300 payment will be made in addition to application filing fee.