Parker Parflex Design And Installation Manual
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Parker Parflex Design And Installation Manual

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Design and Installation Guide
Bulletin No. 4660-PGP2T
Effective Date September 2007
S
, R
& F
IMPLE
ELIABLE
AST
www.parflexsystem.com

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Summary of Contents for Parker Parflex

  • Page 1 Design and Installation Guide Bulletin No. 4660-PGP2T Effective Date September 2007 & F IMPLE ELIABLE www.parflexsystem.com...
  • Page 2 Offer of Sale The items described in this document are hereby offered for sale by Parker Hannifin Corporation, its subsidiaries or its authorized distributors. This offer and its acceptance are governed by the provisions stated in the “Offer of Sale.”...

  • Page 3: Table Of Contents

    Dual Pressure System Example ................22 3.2.5 Parallel Elevated System Example ................. 23 3.2.6 Parflex System / Steel Pipe Hybrid System Example ..........25 3.2.7 Parallel Medium Pressure System – Summation Method Example ....... 26 3.2.8 Propane Elevated Dual Pressure System .............. 27 Section 4.0...
  • Page 4 6.1.3 Testing Appliance Connections ................51 Section 7.0 Sizing and Pressure Drop Tables CSST Tables ........................52 Steel Pipe Table ........................58 Specific Gravity Factor ......................58 Section 8.0 Definitions Offer of Sale Parker Hannifin Corporation Parflex Division Ravenna, Ohio...

  • Page 5: Warnings To User

    CSST manufacturers in the cases of addition or repair. 1.2 Design Guide Limitations This guide is written to aid the certified gas tubing installer in the Application of the Parflex System for residential and commercial buildings. This guide does not cover every possible variation in plumbing configurations, construc- tion styles, appliance loads and local restrictions.

  • Page 6: Parflex System Description

    Design and Installation Guide 2.1 Parflex System Description The Parflex Flexible Gas Piping System, Parflex System, has a number of essential hardware and design differences from conventional gas piping systems using rigid steel (Schedule 40) pipe. These differences can be described as follows: The system uses CSST made of 300 series type material.

  • Page 7: Parflex System Components

    Bulletin No. 4660-PGP2T Design and Installation Guide Section 2.0 System Components 2.2 Parflex System Components Corrugated Stainless Steel Tubing — (CSST) with polymer jacket. Maximum working pressure 5 psi. Parameter Parflex System Part Number PGP-6 PGP-8 PGP-12 PGP-16 PGP-20 PGP-32...
  • Page 8 4.87" 2.56" 1.60 2TFM-16-12-8B 1" 3/4" 1/2" 1-3/4" 1-7/16 1-1/8" 4.66" 2.21" 2.06 2TFM-16-12-12B 1" 3/4" 3/4" 1-3/4" 1-7/16 1-7/16 4.66" 2.26" 2.18 2TFM-16-16-8B 1" 1" 1/2" 1-3/4" 1-3/4" 1-1/8" 4.81" 2.21" 2.10 Parker Hannifin Corporation Parflex Division Ravenna, Ohio...
  • Page 9 2NFEFM-16B 12-16-CFL 12-16-CFLG 1-3/4" 3.10" 1-11-1/2 1.97" 1.58 Flange Mount Bracket* *Used for mounting all flange FastMate™ fittings to studs during rough installation. (Kit includes one bracket and fasteners.) Part Weight (lbs.) FMB-1 Parker Hannifin Corporation Parflex Division Ravenna, Ohio...

  • Page 10: Stub-Outs

    Straight Stubout IPS Pipe Weight Part No. Size (lbs.) SSO3/4X6 1.13 SSO3/4X10 1.13 1.30 SSO125X6 1-1/4 2.50 SSO125X12 1-1/4 3.60 Stubout Bracket Length Width Depth Weight Part No. (lbs.) 14.50 5.20 3.25 1.90 Parker Hannifin Corporation Parflex Division Ravenna, Ohio...

  • Page 11: Protection Devices

    LESS THAN " Flexible Steel Conduit For protection of Parflex tubing from puncture at points of support near flange outlets, short tubing runs and where tubing is routed horizontally between studs. Available in bulk length coils and precut 12 inch lengths for all sizes.

  • Page 12: Regulators And Accessories

    (17 to 27) 4 to 12 5 TO 9 6 to 10 6 to 10 7 to 11 325-5A (10 to 30) (12.5 to 22.5) (17 to 27) (15 to 25) (17 to 27) Parker Hannifin Corporation Parflex Division Ravenna, Ohio...

  • Page 13: Manifolds

    Enclosure Panel Face Ring / Door Part No. Weight Dimensions (in.) Dimensions (in.) W: 14-1/2 W: 14-1/2 PGLC H: 18 17.00 H: 18 D: 5-1/4 *All piping, valve, regulator, union and manifold not included. Parker Hannifin Corporation Parflex Division Ravenna, Ohio...

  • Page 14: Shut-Off Valves

    Wt. (lbs.) Replacement Kit PGPCT-SM 3/8", 1/2" 1.05 PGP-SCR PGPCT-LG 3/4", 1" 1.05 PGP-LCR PGPCT-XLG 1-1/4", 2" 1.20 PGP-XCR PGPCT-SM PGPCT-LG *Specially designed polymer rollers for clean cutting of CSST. PGP-SCR PGP-LCR PGP-XCR PGPCT-XLG Parker Hannifin Corporation Parflex Division Ravenna, Ohio...

  • Page 15: Other Components

    DAMAGED OR LEAKING. This piping system must be properly electrically bonded and grounded per NFPA 70. Reference the Parflex System Design and Installation Manual (Bulletin No. 4660-PGP2T) for additional instructions. For information about trained installers in your area, please see www.parflexsystem.com or call1-888-FASTMATE...

  • Page 16: System Configuration

    System Planning Prior to the piping installation, carefully follow the steps provided below 1. Confirm that the local building code authority has accepted the use of the Parflex System. Contact your Parflex System distributor for this information. 2. Check with the local gas utility or supplier to determine the metered gas supply pressure.

  • Page 17: Parallel System

    11 inches WC and a 1/2 inch WC maximum pressure drop is allowed through each line. A low-pressure series arrangement typically requires larger diameter tubing to meet appliance demands. Parker Hannifin Corporation Parflex Division Ravenna, Ohio...

  • Page 18: Medium Pressure System

    Elevated Pressure System — Elevated pressure system layouts use CSST to deliver gas directly to an appliance regulator located directly upstream of the appliance. These systems typically have long runs and high loads. Parker Hannifin Corporation Parflex Division Ravenna, Ohio...

  • Page 19: System Sizing Methods And Examples

    (distance from meter to water heater). Referring to Table 1 under the 50 ft. length column, we find that size 1 inch (PGP-16) has flow capacity over 109 CFH (186). Use 1 inch (PGP-16) to run Section B. Parker Hannifin Corporation Parflex Division...
  • Page 20 12 ft. + G = 8 ft.). Because there is no 38 ft. column, use the next longer length column. From Table 1 under the 40 ft. column, we find that 1/2 inch (PGP-8) has flow capacity above 25 CFH (47). Use 1/2” (PGP-8) to run Section G. Parker Hannifin Corporation Parflex Division Ravenna, Ohio...

  • Page 21: Longest Length Parallel System Example (Medium Pressure)

    50 ft. = 130 ft. Referring to Table 8 under the 150 ft. column, we find that 1/2 inch (PGP-8) has capacity above 34 CFH (80). Use 1/2 inch (PGP-8) to run Section E. Parker Hannifin Corporation Parflex Division Ravenna, Ohio...

  • Page 22: Dual Pressure System Example

    Sizing Section E – Section E supplies the water heater. The load is 34 CFH and the distance is 70 ft. Re- ferring to Table 5 under the 70 ft. length column, we find that size 1/2 inch (PGP-8) has capacity above 34 CFH (84). Use 1/2 Inch (PGP-8) to run Section E. Parker Hannifin Corporation Parflex Division Ravenna, Ohio...

  • Page 23: Parallel Elevated System Example

    Unit. Referring to Table 11 (5.0 psig; Pressure Drop: 3.5 psig) under the 150 ft. length column, we find that 1 inch Parflex tubing (PGP-16) has a flow capacity exceeding 1,350 CFH (1,539 CFH). Use 1 inch Parflex tubing (PGP-16) to run Section A.
  • Page 24 75 ft. + 25 ft. + 25 ft. + 25 ft. = 150 ft. Referring to Table 11 under the 150 ft. column, we find that 1/2 inch (PGP-8) has capacity above 225 CFH (299). Use 1/2 inch (PGP-8) to run Section I. Parker Hannifin Corporation Parflex Division...

  • Page 25: Parflex System / Steel Pipe Hybrid System Example

    Dryer = 25 CFH F = 15 ft. PGP-16 (1") sure tables. We will use Steel Tables (Table 17, Section 7.1) and Parflex Table of 0.5 psig or Water heater = 34 CFH G = 12 ft. PGP-8 (1/2") less with a pressure drop of 0.5 in. WC (Table Total 184 CFH 1, Section 7.1).

  • Page 26: Parallel Medium Pressure System - Summation Method Example

    30 ft. + 10 ft. + 12 ft. = 72 ft. Referring to Table 1 under the 80 ft. column, we find that ½ inch (PGP-8) has capacity above 25 CFH (34). Use 1/2 inch (PGP-8) to run Section G. 3.2.7 Summation of Pressure Drops Method - See example at www.parflexsystem.com http://www.parker.com/parflexsystem/pdf_files/summation_example.pdf Parker Hannifin Corporation Parflex Division Ravenna, Ohio...

  • Page 27: Propane Elevated Dual Pressure System

    Sizing Section E—Section E supplies the water heater with a load of 34,000 BTUH over a distance of 50 ft. Referring to Table 12 under the 50 ft. length column. We find that size 1/2 inch (PGP-8) has capacity above 34,000 BTUH (70,000). Use 1/2 inch (PGP-8) to run Section E. Parker Hannifin Corporation Parflex Division Ravenna, Ohio...
  • Page 28 Parflex Flexible Gas Piping System ® Bulletin No. 4660-PGP2T Design and Installation Guide NOTES Parker Hannifin Corporation Parflex Division Ravenna, Ohio...

  • Page 29: Installation Practices

    PGP-32 (2") The Parker Parflex system is designed for use with fuel gas at operating pressures up to 5 psi. Avoid exposing the tubing to pressure tests above 100 psig. Do not expose regulators above 10 psi. Caution: If a one-part, high-pressure test is performed, the regulator must be removed to avoid regulator damage caused by over pressurization.

  • Page 30: Fitting Assembly

    Make the final precision cut on the stripped tubing using the Parker cutter. Check that your final cut leaves a minimum of 6 corrugations for fitting assembly. Use light roller pressure with extra tool revolutions and a sharp blade to produce clean cuts.
  • Page 31 4.2.4 Flange Fitting Assembly Flange mount fittings—Slide the Parflex tubing through the flat side of the flange. Assemble the tube to the fitting flange\ nut and body as described above for the straight fitting assembly. While holding the flange nut of the fitting with a wrench, screw the flange snug onto the nut. Align the flange to the flange mount bracket and bolt.
  • Page 32 Remove fitting nut with tubing. Remove polymer jacket 3 inches behind the nut. Cut the tubing 4 corrugations behind the fitting nut using the Parflex cutter. When tubing is cut, push the short piece of tubing through the fitting nut and discard.

  • Page 33: Routing

    Parflex tubing. The tubing should be supported every 10 feet on vertical runs. When routing the tubing inside insulated exterior walls ensure the tubing will be routed between the paper facing of the insulation and the interior wall surface.

  • Page 34: Modifying/Adding To Existing Piping Systems

    Branch Outlets — When multiple outlets are branched out from a single main run of Parflex (CSST), each branch is connected to the main using a tee fitting. Each tee can be located in a concealed space.

  • Page 35: Outdoor Routing

    This nonmetallic conduit is to have an inside diameter 1/2 inch (1 inch in Canada) larger than the Parflex tube outer diameter. Ex- posed conduit ends must be sealed to prevent the entry of water and debris. Follow standard building code practices when routing Parflex in crawl spaces or underneath mobile homes.

  • Page 36: Strike Protection

    4.4 Strike Protection Parflex CSST should be routed in areas to avoid penetration threats, physical damage and have the freedom to move. If Parflex tubing is constrained from movement, concealed from view, and within 3 inches of a penetration threat, strike protection must be installed.
  • Page 37 17") can be used as an alternative to individual striker plates. Plates are commonly used near the mounting side of manifolds and branch. Panel Striker Plates Covering Vertical Panel Striker Plates Covering Branch Tees Tubing Runs Between STuds in Rafter or Floor Joist Runs Parker Hannifin Corporation Parflex Division Ravenna, Ohio...

  • Page 38: Metallic Conduit

    Use strip-wound metallic conduit as an additional tubing protection device at support points, near flange termination outlets and where tubing is run horizontally between studs. Route the Parflex tubing in metal- lic conduit to provide extra protection from penetration from screws, nails and drill bits and to reduce the possibility of crushing in areas where tubing is exposed.

  • Page 39: Meter Hookups

    Gas meters in some cases are supported by the service/supply line or by the interior piping system inde- pendent of the structure. Do not use Parflex tubing (CSST) as a direct connection to any meter which must be supported by the piping. On pipe supported meters, accepted practice is to connect the meter outlet to a termination flange mounted on the exterior wall, penetrate the exterior wall with a Parflex Meter Stubout or use steel pipe to provide a rigid attachment for the meter and Parflex tubing within the building.
  • Page 40 Parflex Flexible Gas Piping System ® Bulletin No. 4660-PGP2T Section 4.0 Installation Practices Design and Installation Guide Building PIPING Supported Gas Meter Parker Hannifin Corporation Parflex Division Ravenna, Ohio...

  • Page 41: Connections

    Movable appliances such as gas ranges and dryers must be connected to the CSST system using an approved appliance connector. Connection to the Parflex system can be made at a flange fitting terminated outside the wall eliminating concealed fittings. The straight or elbow appliance stub-out mounted to the stud face can be used to provide an uncon- strained tubing connection away from penetration threats.
  • Page 42 Infrared heaters rigidly mounted on interior/exterior walls or ceilings must be connected to the Parflex system in compliance with local codes and in accordance with manufacturer’s instructions. The Parflex CSST should be mounted to the fixed end of the heater to avoid expansion and contraction that occurs.
  • Page 43 Standard roof penetrations should be close (approximately 6 ft.) to the appliance and sealed to prevent the entry of water. When long lengths of Parflex (CSST) are run exposed on a roof, common practice is to support the tubing every 6 feet with nonmetallic blocks which raise the tubing off the roof or a distance specified by local code.
  • Page 44 Design and Installation Guide Gas Fireplaces • Parflex CSST can be routed directly to the shut-off valve of a gas fireplace. Parflex can also be used for fuel delivery to gas fireplace inserts and decorative fireplace heaters. • Parflex CSST should not be routed within the fire box of gas wands, log lighters or near wood and composite logs where tubing damage can occur caused by crushing and excessive heat.

  • Page 45: Manifold Stations

    Common mounting configurations illustrated below include surface mounting to interior walls, between open floor joists, between ceiling joists in attic spaces and within partition walls using a ven- tilated enclosure. Single -Port Manifold with Three Required Outlets and One Plugged Outlet Manifold Expansion Methods (For Additional Appliances and Pressure Testing) Parker Hannifin Corporation Parflex Division Ravenna, Ohio...

  • Page 46: Line Pressure Regulators

    4.8.1 Installation Requirements On Parflex (CSST) systems having supply pressure exceeding 1/2 psi (14" WC), a regulator must be in- stalled downstream to limit appliance supply pressure to a maximum of 1/2 psi (14" WC). The regulators currently certified for uses with Parflex are Maxitrol type 325-3L and 325-5A.L. At supply pressures in excess of 2-psi, ANSI Z21.80 line regulator standard requires an approved and tested OPD (over-pressure...

  • Page 47: Over-Pressurization Protection

    Direct Burial — For permanently mounted grills and gas yard lights, Parflex tubing must be routed and connected in accordance with manufacturer’s instructions and code regulations. All Parflex tubing installed below grade must be protected in nonmetallic, weather-tight conduit.

  • Page 48: Electrical Bonding And Grounding

    AWG copper wire. Bonding clamps used on the The Parflex System must be attached to a Parflex brass fitting (Figure 1), a steel manifold (Figure 2) or to a rigid pipe component connected to a Parflex fitting. The CSST portion of the gas piping system must not be used for the bonding attachment (Figure 3). CSST also must not be used as a grounding electrode or as the grounding path for appliance or electrical systems.

  • Page 49: Minimum Requirements

    Appropriate sleeving is used for underground routings Parflex Warning Tag installed on an interior component, visible to the homeowner. The Parflex Flexible Gas Piping System and mechanical systems are properly bonded and grounded to the grounding electrode per NFPA 70.

  • Page 50: Repair Of Damaged Tubing

    1. Parflex must be repaired if the metallic tubing has been deeply nicked, cut or punctured. 2. Parflex must be repaired if the diameter in the damaged area has been crushed or dented to less than two-thirds of its original diameter.

  • Page 51: Testing Requirements

    Appliance Connection and Leakage Check Procedure — After final construction is completed and the piping system has passed both the pressure test and inspection, connect the appliances to the PARFLEX system using code approved flexible appliance connectors. Turn on the gas at the meter and inspect for leakage at each appliance connection before operating the appliances.

  • Page 52: Csst Tables

    Caution: Locate proper sizing table based on total pressure drop allowed in piping system by local utility for each installation. Table 1* Maximum Flow Capacity of Parker Parflex Tubing in Cubic Feet per Hour Gas Pressure: 0.5 psi or less; Pressure Drop: 0.5 in. WC (Based on a 0.60 Specific Gravity Gas) Tubing Length (ft.)
  • Page 53 Caution: Locate proper sizing table based on total pressure drop allowed in piping system by local utility for each installation. Table 4* Maximum Flow Capacity of Parker Parflex Tubing in Cubic Feet per Hour Gas Pressure: 0.5 psi or less; Pressure Drop: 2.0 in. WC (Based on a 0.60 Specific Gravity Gas) Tubing Length (ft.)
  • Page 54 Caution: Locate proper sizing table based on total pressure drop allowed in piping system by local utility for each installation. Table 7* Maximum Flow Capacity of Parker Parflex Tubing in Cubic Feet per Hour Gas Pressure: 0.5 psi or less; Pressure Drop: 5.0 in. WC (Based on a 0.60 Specific Gravity Gas) Tubing Length (ft.)
  • Page 55 Caution: Locate proper sizing table based on total pressure drop allowed in piping system by local utility for each installation. Table 10* Maximum Flow Capacity of Parker Parflex Tubing in Cubic Feet per Hour Gas Pressure: 2.0 psig; Pressure Drop: 1.5 psig (Based on a 0.60 Specific Gravity Gas) Tubing Length (ft.)
  • Page 56 Caution: Locate proper sizing table based on total pressure drop allowed in piping system by local utility for each installation. Table 12* Maximum Flow Capacity of Parker Parflex Tubing in Thousands of BTU per Hour of Undiluted Liquefied Petroleum Gas Gas Pressure: 11.0 in. WC; Pressue Drop: 0.5 in. WC (Based on a 1.52 Specific Gravity LP Gas) Tubing Length (ft.)
  • Page 57 Caution: Locate proper sizing table based on total pressure drop allowed in piping system by local utility for each installation. Table 15* Maximum Flow Capacity of Parker Parflex Tubing in Thousands of BTU per Hour of Undiluted Liquefied Petroleum Gas Gas Pressure: 2.0 psig; Pressure Drop: 1.5 psig (Based on a1.52 Specific Gravity LP Gas) Tubing Length (ft.)

  • Page 58: Steel Pipe Table

    0.68 0.55 1.04 1.40 0.66 0.60 1.00 1.50 0.63 0.65 0.96 1.60 0.61 0.70 0.93 1.70 0.59 0.75 0.90 1.80 0.58 0.80 0.87 1.90 0.56 0.85 0.84 2.00 0.55 0.90 0.82 2.10 0.54 Parker Hannifin Corporation Parflex Division Ravenna, Ohio...

  • Page 59: Section 8.0 Definitions

    Exposed Gas Piping – Gas piping which will be in view in the finished structure. FastMate™ – Trade name for Parker patented quick connect gas pipe fittings. Fuel Gas – A commonly distributed gas used for fuel such as natural gas, manufactured gas, undiluted liquefied petroleum gas (vapor phase only), liquefied petroleum gas-air mixtures of these gases (includes propane and butane).
  • Page 60 ® Parflex Piping System – An assembly of CSST intended for field assembly and Application in residential and commercial buildings to distribute fuel gas to gas utilization equipment within the building. The piping system may also include a gas pressure regulator(s), a shut-off valve(s), tube shielding devices, distribution manifold(s), and other approved devices or components.
  • Page 61 The yellow jacket should be stripped 1 ft. each side of a fire wall, duct or plenum. True False Clearance holes for routing the Parflex tubing are to be the same size of the pipe. True False Parflex tubing must be protected from physical damage at support points and locations where the tubing passes through joists, studs, clamps and floor plates.
  • Page 62 Pressure testing must be performed during rough construction before interior walls are finished. True False The Parflex Design & Installation Manual advises, along with most local codes, an additional pres- sure or leakage test be performed after construction is completed and interior walls are finished. True False For best results when cutting the tubing, use maximum roller pressure for a faster cut.

  • Page 63: Offer Of Sale

    Offer of Sale This Offer of Sale extends to Parker Hannifin Corporation’s Parflex Division Flexible Gas Piping products (“Products”) only. The products described in this offer are hereby offered for sale to wholesalers (individually “Wholesaler”) at prices established by Parker Hannifin (“Seller”). This offer and its acceptance by any customer (“Buyer”) shall be governed by all of the following Terms and Conditions.
  • Page 64 Parker Hannifin Corp. 1300 North Freedom Street Ravenna, OH 44266 888-327-8628 (888-FastMate) www.parflexsystem.com 4660-PGP2T Printed Jan-2008-...

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