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Easyflex VectorFlex CSST Design & Installation Manual

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CSST GAS LINE SYSTEM
BY EASYFLEX
®
DESIGN & INSTALLATION GUIDE
JANUARY 2020
vectorflex.com
888 577 8999
|

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Summary of Contents for Easyflex VectorFlex CSST

  • Page 1 CSST GAS LINE SYSTEM BY EASYFLEX ® DESIGN & INSTALLATION GUIDE JANUARY 2020 vectorflex.com 888 577 8999...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS 1. Introduction 1.1 General User Warnings 1.2 Limitations of the Guidelines 1.3 Standards, Listings, and Codes 2. System Description & Components 2.1 System Description 2.2 System Components VectorFlex™ Worksheet 3. System Configuration 3.1 Introduction 3.2 Determining System Layout 3.3 Sizing Procedures and Examples 3.3.1 Low Pressure Systems 3.3.2 Hybrid Systems...

  • Page 3: Introduction

    All installed systems must pass installation inspections by the local building official or inspector prior to being put into service. Only tubing and fitting components manufactured by Easyflex® or its related and authorized subsidiaries are to be used in the installation. Use of other manufacturers tubing and or fitting components in the system are prohibited and may result in poor system performance and serious bodily injury or property damage.
  • Page 4 Easyflex® recommends that all continuous metallic systems be bonded and grounded. Other metallic systems may also cause arcing and damage the CSST. Other metallic systems include, but are not limited to metallic chimney liners, metallic appliance vents, metallic ducting and piping, electrical cables, and structural steel.

  • Page 5: Limitations Of The Guidelines

    This guide was created with the best efforts to be in accordance with all regional model codes in effect at its printing. However Easyflex® cannot guarantee that the local administrative authority will accept the most recent version of these codes, or that they will not use the right to deny acceptance of the product. It is the ultimate responsibility of the installer to determine acceptance of any building component including gas piping before it is installed.

  • Page 6: System Description & Components

    ® pipe nipples, valves, regulators, manifolds and accessory fittings. • System components such as manifolds, tees and stub-outs assembled to fit with threaded ends of Easyflex QuickFlare™ ® fittings, and approved by national and or local authorities for use in gas distribution systems are allowed.

  • Page 7: System Components

    SYSTEM COMPONENTS 2.2 SYSTEM COMPONENTS 2.2.1 CORRUGATED STAINLESS STEEL TUBING Material Stainless Steel 304, Polyethylene Jacket Tubing 3/8” 1/2” 3/4” 1” 1¼” 1½” 2” NGL-038- NGL-012- NGL-034- NGL-100- NGL-114- NGL-112- NGL-200- Model Number* YW-050 YW-050 YW-050 YW-050 YW-050 YW-050 YW-050 0.508 0.563 0.862...
  • Page 8 SYSTEM COMPONENTS Table 2: Bending Radius Nominal Minimum Minimum Maximum # of Part # Internal Bending Tightening Re-assemblies per Diameter Radius Torque Fitting NGL-038-YW-XXX/NGL-038-BK-XXX 3/8” 3” 40 lbs-ft NGL-012-YW-XXX/NGL-012-BK-XXX 1/2” 3” 60 lbs-ft NGL-034-YW-XXX/NGL-034-BK-XXX 3/4” 3” 80 lbs-ft NGL-100-YW-XXX/NGL-100-BK-XXX 1” 5”...
  • Page 9 SYSTEM COMPONENTS Straight Female Fitting Part # Description NGLF-038-SF 3/8” CSST x 3/8” Straight Female, NPT NGLF-038-SF-012 3/8” CSST x 1/2” Straight Female, NPT NGLF-012-SF 1/2” CSST x 1/2” Straight Female, NPT NGLF-012-SF-038 1/2” CSST x 3/8” Straight Female, NPT NGLF-034-SF 3/4”...
  • Page 10 SYSTEM COMPONENTS Reducing Tee Part # Description NGLF-012-RT-038 1/2” R x 1/2” R x 3/8” T, Reducing Tee NGLF-034-RT-012038 3/4” R x 1/2” R x 3/8” T, Reducing Run & Tee NGLF-034-RT-012 3/4” R x 3/4” R x 1/2” T, Reducing Tee NGLF-100-RT-034012 1”...
  • Page 11 SYSTEM COMPONENTS Flange Fitting Part # Description NGLF-038-FG 3/8” Flange Fitting, 3/8” Nut NGLF-012-FG 1/2” Flange Fitting, 1/2” Nut NGLF-034-FG 3/4” Flange Fitting, 3/4” Nut NGLF-100-FG 1” Flange Fitting, 1” Nut NGLF-114-FG 1¼” Flange Fitting, 1¼” Nut NGLF-FG-112 1½” Flange Fitting, 1½” Nut NGLF-FG-200 2”...
  • Page 12 SYSTEM COMPONENTS Appliance Stub Out Part # Description NGLF-012-APSO-012S 1/2” x 1/2” Appliance Stub Out-Short NGLF-012-APSO-012L 1/2” x 1/2” Appliance Stub Out-Long NGLF-012-APSO-034S 1/2” x 3/4” Appliance Stub Out Short NGLF-012-APSO-034L 1/2” x 3/4” Appliance Stub Out Long NGLF-034-APSO-034S 3/4” x 3/4” Appliance Stub Out Short NGLF-034-APSO-034L 3/4”...
  • Page 13 SYSTEM COMPONENTS Manifold Part # Description NGLF-MFD-01 1/2”F In, 1/2”F Out, Port 1/2”F - 3 Ports NGLF-MFD-02 1/2”F In, 1/2”F Out, Port 1/2”F - 4 Ports NGLF-MFD-03 3/4”F In, 1/2”F Out, Port 1/2”F - 4 Ports NGLF-MFD-04 3/4”F In, 1/2”F Out, Port 1/2”-3/4”F - 5 Ports NGLF-MFD-05 3/4”F In, 3/4”F Out, Port 1/2”F - 4 Ports NGLF-MFD-06...
  • Page 14 SYSTEM COMPONENTS Striker Plate Part # Description NGLF-STKP-32 Quarter Striker Plate, 3” x 2” NGLF -STKP-37 Half Striker Plate, 3” x 7” NGLF -STKP-384 Half Striker Plate, 8.4” Double NGLF -STKP-38 Three Quarter Striker Plate, 3” x 8” NGLF -STKP-312 Full Striker Plate, 3”...

  • Page 15: Vectorflex™ Worksheet

    VECTORFLEX™ SIZING WORKSHEET VectorFlex™ Gas Line System Worksheet Project: Phone: Address: Date: Description: System Description: Sizing Worksheet Supply Pressure Tube Delivery Length of Load of Run Name of Run Pressure Drop (lbs Diameter (in Pressure (lbs Notes Run (ft) (CFH) (lbs or in) or in) or mm)

  • Page 16: System Configuration

    Corrugated Stainless Steel Tubing has been accepted by all major code bodies, but local or state adoption of these codes often lags behind. Check with the local administrative authority or an authorized Easyflex® distributor for approval in your area. •...
  • Page 17 The appropriate pressure drop can be calculated by subtracting the appliance inlet pressure (typically 5” WC for NG, 10.5” WC for LPG) from the gas source pressure (gas meter for NG, secondary regulator for LPG). Use the Easyflex® capacity table labeled with the right allowable pressure drop and gas type. Increasing the available pressure drop will increase the available BTUHs, thus decreasing pipe sizes.
  • Page 18 L =1.3 x N: where “L” is additional length of tubing, and “N” is the number of additional fittings, or 90 degree bends. Easyflex’s Longest Run tables and Total or Summation tables are produced from the same fluid flow equations.

  • Page 19: Sizing Procedures And Examples

    SIZING PROCEDURES AND EXAMPLES 3.3 SIZING PROCEDURES AND EXAMPLES 3.3.1 LOW PRESSURE SYSTEMS EXAMPLE 1: LOW PRESSURE SYSTEM, SERIES ARRANGEMENT The figure below shows a typical single-family home installation with 5 appliances. The piping is arranged in series with a main run branching to the appliances.
  • Page 20 SIZING PROCEDURES AND EXAMPLES v. Size Run “E” • Run “E” is sized using the longest run from the meter that includes Section E and the total gas load of all supplied appliances. • The total load of all appliances: 25 + 35 + 80 = 140 CFH. •...
  • Page 21 SIZING PROCEDURES AND EXAMPLES vii. Size Run “G” • Run “G” is sized using th longest run from the meter that includes Section G and the total gas load of all supplied appliances. • The total load of all appliances: 35 + 80 = 115 CFH. •...
  • Page 22 SIZING PROCEDURES AND EXAMPLES ii. Size Run “B” • Run “B” is sized by the load of the supplied appliance (Water Heater) and its run length from the meter. • The load of the Water Heater is 40 CFH. • The run length to the Water Heater: 50 + 25 = 75 ft.

  • Page 23: Hybrid Systems

    SIZING PROCEDURES AND EXAMPLES iv. Size Run “D” • Run “D” is sized by the load of the supplied appliance (Oven) and its run length from the meter. • The load of the Oven is 25 CFH. • The run length to the Oven: 50 + 10 = 60 ft. •...
  • Page 24 SIZING PROCEDURES AND EXAMPLES [Fig 3.3] Example 3:Hybrid System Meter IRON PIPE A=20’ Water 40k BTU Heater 10k BTU B=5’ Fireplace C=10’ 30k BTU Dryer D=5’ 25k BTU 25k BTU 35k BTU 80k BTU M=5’ L=5’ Oven Range Furnace E=35’ K=10’...
  • Page 25 SIZING PROCEDURES AND EXAMPLES ii. Size Run “B” • Run “B” is sized by the load of the supplied appliance (Water Heater) and its run length from the meter. • The load of the Water Heater is 40 CFH. • The run length to the Water Heater: 20 + 5 = 25 ft.
  • Page 26 SIZING PROCEDURES AND EXAMPLES viii. Size Run “H” • Run “H” is sized by the load of the supplied appliance (Range) and its run length from the meter. • The load of the Range is 35 CFH. • The run length to the Range: 20 + 10 + 35 + 5 + 5 = 75 ft. •...
  • Page 27 SIZING PROCEDURES AND EXAMPLES EXAMPLE 4: HYBRID SYSTEM, PARALLEL ARRANGEMENT Figure below shows the same house and similar piping system as Example 3. The piping is arranged in parallel. The main trunk line (A) from the meter to the distribution manifold is rigid pipe. The utility company’s supply pressure (downstream of the meter) is 7”WC.
  • Page 28 SIZING PROCEDURES AND EXAMPLES i. Size Run “A” • Run “A” is sized using longest run from the meter that includes Section A and the total gas load of all appliances. • The total load of all appliances: 40 + 30 + 25 + 35 + 80 = 210 CFH. •...

  • Page 29: Elevated Pressure System

    SIZING PROCEDURES AND EXAMPLES 3.3.3 ELEVATED PRESSURE SYSTEMS Sizing of an elevated pressure system consists of three parts: 1. Determine if one regulator is sufficient by calculating the total load in the system. 2. Size the run between the meter and the regulator. 3.
  • Page 30 SIZING PROCEDURES AND EXAMPLES [Fig 3.5] Example 5:Dual Pressure System Meter 40k BTU A=30’ B=20’ 35k BTU Water Heater Range 30k BTU Reg. C=10’ Dryer F=20’ 25k BTU D=20’ Oven 80k BTU E=60’ Furnace [Table 3.6] Section Section Length Run Length Demand Tubing Size 30’...

  • Page 31: Summation Method

    SIZING PROCEDURES AND EXAMPLES v. Size Run “D” • Distance from Regulator to Oven is 20 ft • The load of the Oven is 25 CFH. • Refer to Table 7A-1. For a length of 20 ft, find a capacity greater than or equal to 25 CFH. •...
  • Page 32 SIZING PROCEDURES AND EXAMPLES [Table 3.7] Section Section Length Run Length Demand Tubing Size 10’ 45’ 230 CFH = 230,000 BTUH 1” 5’ 15’ 40 CFH = 40,000 BTUH 3/8” 5’ 45’ 190 CFH = 190,000 BTUH 3/4” (1” correct size)* 5’...

  • Page 33: Installation

    GENERAL INSTALLATION PRACTICES & FITTING ASSEMBLY 4. INSTALLATION 4.1 GENERAL INSTALLATION PRACTICES • All system hardware should be stored in original packaging prior to installation. Keep in a clean, dry location. • Proper handling of exposed tubing is required to ensure that it is not damaged or abused during or before use. •...

  • Page 34: Fitting Assembly

    FITTING ASSEMBLY CAUTION: Tube ends are sharp, please handle with care. GOOD CUT BAD CUT BAD CUT [Fig. 4.1] [Tip 1] If you are having trouble seeing peaks and valleys of corrugations through jacket in low light conditions, feel for them, get a better light source or remove jacket from section before cutting.
  • Page 35 FITTING ASSEMBLY Step 3: Install QuickFlare™ Fitting and VectorFlex™ CSST Look inside the fittings and verify the brass ring and copper washer are in place. CAUTION: All inner parts must be placed in the fitting [Fig. 4.4] • Attach threaded end to appliance or other threaded fitting, if applicable. •...
  • Page 36 FITTING ASSEMBLY Step 4: Wrench Tightening Using one wrench to hold the fitting body and a second wrench to turn the nut, only tighten nut onto fitting body. Some resistance will be experienced as the nut begins to compress the tubing and create the flare on the end of the tubing.
  • Page 37 FITTING ASSEMBLY TERMINATION BRACKET FITTING 1. Attach Bracket to stud or mounting surface using threaded metal screws. [Fig. 4.11] 2. Slide CSST through Bracket opening and locknut. [Fig. 4.12] 3. Attach fitting to CSST as described previously. [Fig. 4.13] 4. Tighten locknut to fitting. [Fig 4.14] [Fig.

  • Page 38: Routing

    ROUTING 4.3 ROUTING 4.3.1 VERTICAL RUNS Vertical CSST runs should be free to move within the wall space without any support between the floors. [Fig. 4.18] The CSST should be anchored and supported to support its weight and the weight of the gas at the highest point in the run. Where any run is more than two stories or 20-ft, additional support (appropriate to the weight of the CSST) must be provided at the point the CSST passes through the floor.

  • Page 39: Installation Clearance Holes

    ROUTING 4.3.3 INSTALLATION CLEARANCE HOLES All clearance holes for routing shall have a diameter at least Tubing Size Minimum Clearance Hole Diameter 1/2 inch greater than the outside diameter of the tubing. 3/8” 1-1/8” Refer to Table 4.3.3 for minimum hole diameter. Drilling of 1/2”...

  • Page 40: Modifications To Existing Systems

    Penetration Fire stop Systems (XHEZ)” may be found in UL Fire Resistance Volume 2. In instances that UL specifications for fire rated construction conflict with the current Easyflex® Design and Installation Guide, UL takes precedence. 4.3.8 ROUTING THROUGH MASONRY MATERIAL “Masonry material”...

  • Page 41: Installation Within A Chase

    PROTECTION 4.3.9 INSTALLATION WITHIN A CHASE VectorFlex™ CSST shall not be installed within a chase and/or enclosure that include a metallic appliance vent and or a metallic chimney liner that extends through and or past the roof unless: • Permitted by local building code •...
  • Page 42 Striker plates are used at all points of penetration through studs, joists, plates or similar structures. Striker plates other than those provided or specified by Easyflex® are not allowed for use. Protection shall be installed as follows: •...

  • Page 43: Steel Conduit

    At termination points not covered by the ANSI standard flexible steel conduit (with a thick wall) shall be installed as additional protection. Easyflex® requires a minimum of six inches of conduit. Flexible Steel conduit should not be used in place of hardened steel striker plates when passing through structural members.

  • Page 44: Appliance Connection

    APPLIANCE CONNECTION 4.6 APPLIANCE CONNECTION 4.6.1 MOVABLE APPLIANCE • When attaching to a movable appliance, VectorFlex™ CSST must be rigidly terminated before the appliance connection. Drip legs (if required), and shut off valves to movable appliances such as dryers and ranges are to be connected to the rigid termination before the appliance.

  • Page 45: Special Applications

    APPLIANCE CONNECTION [Fig. 4.39] [Fig. 4.40] [Fig. 4.38] 4.6.4 SPECIAL APPLICATIONS 4.6.4.1 Roof Mounted Equipment VectorFlex™ CSST can be used in a rooftop application. When used in this application, VectorFlex™ CSST is to be supported above the surface of the roofing material. This support allows for adequate drainage on the roof, protection from snow, and is often required by code.
  • Page 46 APPLIANCE CONNECTION [Fig. 4.43] [Fig. 4.44] • It is also important to select the appropriate metal pipe clamps or straps to attach the tubing to a support. • The supports shall raise the tubing at least 3” from the surface of the roof (higher as required by code or local conditions).
  • Page 47 Use a rubber grommet if direct contact between the CSST and the steel enclosure surfaces is unavoidable. Most often use an Easyflex® angle stub or rigid pipe components. In certain configurations, CSST or flexible appliance connectors feeding a fireplace or gas log set can whistle due to gas flow velocity.

  • Page 48: Manifolds

    MANIFOLDS 4.7 MANIFOLDS Manifolds are installed where multiple runs are made in a parallel arrangement. The manifold may be manufactured from a one-piece iron or brass casting, a welded fabrication of steel sub-components or an assembly of approved, iron tees and short nipples. Manifolds must be rigidly installed.

  • Page 49: Pressure Regulator

    PRESSURE REGULATOR 4.8 PRESSURE REGULATOR In general, gas pressures above the maximum appliance input rating must use a regulator to lower the downstream appliance supply pressure to 1/2 PSI or less. The regulator shall have a lock-up feature that will limit the downstream pressure to 1/2 PSI. Line gas pressures at or below the maximum appliance input rating does not require the use of a line regulator.

  • Page 50: Regulator Capacity Tables

    PRESSURE REGULATOR 4.8.2 REGULATOR CAPACITY TABLES [Table 4.5] Regulator Capacity for Natural Gas with an 7” WC Outlet Pressure (in CFH (m3/h; 0.64 specific gravity) Inlet Pressure Regulator Outlet Pressure 1/2 psi 3/4 psi 1 psi 2 psi GLR-325-3 7” WC GLR-325-5 7”...

  • Page 51: Performance

    “Standard for line pressure regulators”. Refer to Tables for sizing. [Fig. 4.57] If using regulators other than those specified by Easyflex®, carefully consider the regulator properties such as required inlet pressure, flow capacity, the pressure drop through the regulator, and available outlet pressure.

  • Page 52: Underground Installations

    O.D. of the tubing. The conduit shall be sealed at any exposed end to prevent water from entering. 2. Easyflex® does not require the sleeve to be vented to the outside of the structure. If, however, venting is still required, a tee can be placed in the sleeve where an open end is accessible to the open air, outdoors.
  • Page 53 ELECTRICAL BONDING • The bonding is not smaller than a 6 AWG copper wire or equivalent. The bonding conductor is installed and protected in accordance with the National Electrical Code, NFPA 70, (NEC) and Canadian Electrical Code (CEC) CSA C22.1 •...

  • Page 54: Inspection, Repair, And Replacement

    VECTORFLEX™ INSTALLATION CHECKLIST 5. INSPECTION, REPAIR, AND REPLACEMENT 5.1 EASYFLEX® VECTORFLEX™ GAS LINE SYSTEM INSTALLATION CHECKLIST Qualified installer with certification card Components are from the same manufacturer Strike protection System sizing Connected to fixed appliances only Flexible connector for movable appliances...

  • Page 55: Installation Checklist Description

    11. Installation must be properly supported to not only keep the job professional and organized but also to prevent excess strain on the bends and fittings. Supports installed in addition to the practices outlined by Easyflex®, restrict the tubing and increases susceptibility to strike damage.

  • Page 56: Repair Of Damaged Vectorflex™ Csst

    REPAIR OF DAMAGED CSST & PRESSURE/LEAKAGE TESTING 5.3 REPAIR OF DAMAGED CSST 5.3.1 DETERMINE DAMAGE Crushed, dented or kinked CSST can interfere with the flow of gas and [Fig. 5.1] is a point where a leak may occur. Any CSST that appears damaged after visual inspection should be evaluated in the following manner: •...
  • Page 57 PRESSURE/LEAKAGE TESTING Elevated Pressure Systems If an elevated pressure system requires a pressure test of 10 PSI or greater, the regulator must be removed or isolated so that it will not interfere with the test, prior to pressure testing. The test may be performed as a one-part test replacing the regulator with a jumper pipe or temporary line section for pressure testing the entire system.

  • Page 58: Sizing Tables And Pressure Drop Charts

    SIZING TABLES & PRESSURE DROP CHARTS 7. SIZING TABLES & PRESSURE DROP CHARTS [Table 7A-1] Maximum Capacity of VectorFlex™ CSST in Cubic Ft/Hr of Natural Gas (Gas Pressure 7” WC / Pressure Drop 0.5” WC) [Table 7A-2] Maximum Capacity of VectorFlex™ CSST in Cubic Ft/Hr of Natural Gas (Gas Pressure 10”...
  • Page 59 SIZING TABLES & PRESSURE DROP CHARTS 7A: NATURAL GAS [Table 7A-1] Maximum Capacity of VectorFlex™ CSST in Cubic Feet per Hour of Natural Gas (Gas Pressure 7” WC / Pressure Drop 0.5” WC based on 0.60 specific gravity) Tubing Size (EHD) Length of Tubing 3/8”...
  • Page 60 SIZING TABLES & PRESSURE DROP CHARTS [Table 7A-3] Maximum Capacity of VectorFlex™ CSST in Cubic Feet Per Hour of Natural Gas (Gas Pressure 0.5 psi / Pressure Drop 6” WC based on 0.60 specific gravity) Tubing Size (EHD) Length of Tubing 3/8”...
  • Page 61 SIZING TABLES & PRESSURE DROP CHARTS [Table 7A-5] Maximum Capacity of VectorFlex™ CSST in Cubic Feet Per Hour of Natural Gas (Gas Pressure 5 psi / Pressure Drop 3.5 psi based on 0.60 specific gravity) Tubing Size (EHD) Length of Tubing 3/8”...
  • Page 62 SIZING TABLES & PRESSURE DROP CHARTS 7B: PROPANE GAS [Table 7B-1] Maximum Capacity of VectorFlex™ CSST in Cubic Feet Per Hour of Propane Gas (11” WC / 0.5”) Tubing Size (EHD) Length of Tubing 3/8” (13) 1/2” (18) 3/4” (23) 1”(31) 1-1/4”...
  • Page 63 SIZING TABLES & PRESSURE DROP CHARTS [Table 7B-3] Maximum Capacity of VectorFlex™ CSST in Cubic Feet Per Hour of Propane Gas (LP 5 psi / 3.5 psi) Tubing Size (EHD) Length of Tubing 3/8” (13) 1/2” (18) 3/4” (23) 1”(31) 1-1/4”...
  • Page 64 SIZING TABLES & PRESSURE DROP CHARTS 7C: REFERENCE DATA [Table 7C] Specified Gravity Factor For Natural Gas Pressure Conversion Factors Fuel Gas Information 1/4 psi 6.921” WC = (approx. 7” WC) Natural Gas Propane 1/2 psi 13.842” WC = (approx. 14” WC) BTU per Cubic Foot = 1000 2516...
  • Page 65 SIZING TABLES & PRESSURE DROP CHARTS 7D: IRON PIPE CAPACITY Maximum Capacity of Steel IPS Pipe in Cubic Feet Per Hour with a Gas Pressure of 0.5 psi or less and a Pressure Drop of 0.5” WC (based on a 0.60 Specific gravity) [Table 7D] Tubing Length (ft) Nominal...
  • Page 66 SIZING TABLES & PRESSURE DROP CHARTS 7E: STEEL IPS PRESSURE DROP TABLE Pressure drop (inches of water column) for VectorFlex™ CSST on a given CFH Flow (Natural Gas of 0.60 specific gravity) [Table 7E] 1/2” 3/4” 1” 1-1/4” 1-1/2” 2” 2-1/2”...
  • Page 67 SIZING TABLES & PRESSURE DROP CHARTS 1/2” 3/4” 1” 1-1/4” 1-1/2” 2” 2-1/2” 0.635 0.185 0.054 0.014 0.007 0.002 0.001 0.679 0.197 0.057 0.015 0.007 0.002 0.001 0.724 0.210 0.061 0.016 0.008 0.002 0.001 0.771 0.222 0.065 0.017 0.008 0.002 0.001 0.820 0.235...
  • Page 68 SIZING TABLES & PRESSURE DROP CHARTS 1/2” 3/4” 1” 1-1/4” 1-1/2” 2” 2-1/2” 2650 7.677 2.105 0.631 0.167 0.079 0.024 0.010 2700 7.953 2.178 0.653 0.173 0.082 0.024 0.010 2750 8.232 2.252 0.676 0.179 0.085 0.025 0.011 2800 8.516 2.327 0.699 0.185 0.088...
  • Page 69 SIZING TABLES & PRESSURE DROP CHARTS 1/2” 3/4” 1” 1-1/4” 1-1/2” 2” 2-1/2” 4900 6.335 1.965 0.520 0.246 0.073 0.031 4950 2.003 2.003 0.530 0.251 0.075 0.032 5000 2.040 2.040 0.540 0.256 0.076 0.032 5100 2.116 2.116 0.560 0.265 0.079 0.033 5200 2.194...
  • Page 70 SIZING TABLES & PRESSURE DROP CHARTS 7F: VECTORFLEX™ PRESSURE DROP TABLE Pressure drop per foot in inches of water column for VectorFlex™ CSST. (Natural Gas SG) [Table 7F] 3/8” 1/2” 3/4” 1” 1-1/4” 1-1/2” 2” 0.002 0.000 0.000 0.000 0.000 0.000 0.000 0.008...
  • Page 71 SIZING TABLES & PRESSURE DROP CHARTS 3/8” 1/2” 3/4” 1” 1-1/4” 1-1/2” 2” 3.492 0.530 0.117 0.044 0.015 0.004 3.769 0.572 0.126 0.048 0.016 0.004 4.058 0.616 0.136 0.051 0.017 0.005 4.359 0.661 0.145 0.055 0.018 0.005 4.671 0.708 0.156 0.059 0.020 0.005...
  • Page 72 SIZING TABLES & PRESSURE DROP CHARTS 3/8” 1/2” 3/4” 1” 1-1/4” 1-1/2” 2” 2700 2.072 0.791 0.253 0.066 2750 2.155 0.823 0.262 0.069 2800 2.239 0.855 0.273 0.071 2850 2.325 0.888 0.283 0.074 2900 2.412 0.922 0.293 0.077 2950 2.502 0.956 0.304 0.080...
  • Page 73 SIZING TABLES & PRESSURE DROP CHARTS 3/8” 1/2” 3/4” 1” 1-1/4” 1-1/2” 2” 5000 2.954 0.921 0.240 5100 3.082 0.960 0.250 5200 3.213 1.000 0.261 5300 3.346 1.041 0.271 5400 3.483 1.082 0.282 5500 3.622 1.125 0.293 5600 3.764 1.168 0.304 5700 3.909...
  • Page 74 SIZING TABLES & PRESSURE DROP CHARTS 3/8” 1/2” 3/4” 1” 1-1/4” 1-1/2” 2” 9300 3.389 0.879 9400 3.466 0.899 9500 3.544 0.919 9600 3.623 0.939 9700 3.703 0.960 9750 3.743 0.970 9800 3.783 0.980 9900 3.865 1.001 10000 3.947 1.023 10500 4.373 1.132...

  • Page 75: Definitions

    DEFINITIONS 8. DEFINITIONS A description and explanation of terminology used in this design and installation guide. AGA – American Gas Association ANSI – American National Standards Institute ANSI LC 1b/CSA6.26-2005 and LC1a/CSA6.26a-2009 – Fuel Gas Piping Systems Using Corrugated Stainless Steel Tubing (CSST) ANSI Z223.1 –...
  • Page 76 DEFINITIONS CSST – Corrugated Stainless Steel Tubing DELIVERY PRESSURE – Gas pressure available after the gas meter DESIGN PRESSURE – The maximum permitted operating pressure DIRECT BONDING – Bonding, as above, where the electrical connection is made using a clamp and wire at the piping connected directly to the electrical panel.
  • Page 77 DEFINITIONS MAXIMUM ACTUAL OPERATING PRESSURE – The maximum pressure existing in a piping system during a normal annual operating cycle. METER – An instrument installed to measure the volume of gas delivered through a piping system. NFPA – National Fire Protection Agency OVER-PRESSURE PROTECTION DEVICE (OPD) –...
  • Page 78 DEFINITIONS SHIELDING DEVICE – A component of the piping system used to protect the installed corrugated tubing from accidental puncture by nails, screws or similar hardware at concealed tubing support points. SPECIFIC GRAVITY – Ratio of the gas weight of a given volume to that of the same volume of air, both measured under same conditions.
  • Page 79 NOTES...

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