Testing/Cleaning

What are your recommendations for hydrostatic testing of Ductile Iron water lines?
Are there special methods that should be used when pressure cleaning Griffin Ductile Iron Pipe?
Can I use air instead of water to test a Ductile Iron sewer line?


General

Are FASTITE JOINT® and TYTON JOINT® Gaskets interchangeable in the bells of Ductile Iron pipe?
Can you supply MSDS (Material Safety Data Sheets) sheets for gaskets?
Does Griffin Pipe’s Ductile Iron Pipe meet ARRA (American Recovery and Reinvestment Act) requirements?
What are the guidelines regarding selecting a pipe to field cut?
What are the suggested specifications for restrained joint Ductile Iron pipe?
Which ANSI/AWWA specifications does Griffin Ductile Iron Pipe meet?
Which has more deflection, the mechanical joint or the push-on joint?
Why are the some bell faces painted green and/or red?


HDD/Casings

Can Griffin push joint pipe be pushed through a casing using a friction-style restraining gasket?
In an HDD application, how do I connect to your pipe to start the pull?
In an HDD application, is it necessary to string out the pipe prior to pulling through the bore path?
What type of Griffin restrained joint should be used through a casing?
What type of joint should be used for Horizontal Directional Drilling (HDD) with Ductile Iron pipe?


Above-Ground Applications

Can I use TALON™ RJ Gaskets in bridge crossing applications?
What can be done to prevent snaking on a bridge crossing?
What is the recommended hanger spacing when hanging pipe from a bridge?
Which joint should I use for above-ground applications, such as pipe on a bridge, or pipe on piers?
Which joint should I use on a bridge crossing application?


Design

How much water can I get through an 8" (for example) pipe?
Is negative pressure (a vacuum) a problem for Ductile Iron Pipe push-on joints?
What is Pressure Class Ductile Iron Pipe?
What is the design life of Ductile Iron Pipe?
What is the maximum slope on which you can install Ductile Iron Pipe?
What is the pressure rating of Special Thickness Class pipe?
What wall thicknesses in restrained joint pipe do you offer?
Why use Pressure Class Ductile Iron Pipe?


Coatings and Linings

Does Griffin Pipe supply glass-lined Ductile Iron pipe?
How do I clean Protecto 401 lined pipe?
How do I repair cuts made with Ductile Iron pipe lined with Protecto 401™?
What is your standard lining for Ductile Iron Pipe?
What type of lining should I use in a aggressive sewage application?
Why does my pipe have cracks in the cement mortar lining?


Certifications

Are your pipe plants ISO certified?
What kind of certifications/qualifications do your products have? Are they UL and/or FM certified?


Installation

At what point during assembly should I achieve joint deflection with Mechanical Joint pipe?
Can you give me some information about the Griffin Pipe Joint Lubricant?
Do I need to bevel the spigot end of Mechanical Joint Pipe?
Does it matter what direction the pipe is put together?
Does it matter what kind of lubricant I use with Griffin Pipe’s Ductile Iron Pipe during assembly?
Is the SNAP-LOK™ restraining ring solid or segmented?
Should Mechanical Joint pipe be lubricated?
What is the recommended torque range when tightening bolts in a BOLT-LOK™ assembly?
When installing Ductile Iron Pipe on slopes, does it matter which way the bell faces?
Where do I put the lubricant when installing Ductile Iron pipe?


Restrained Joints

In what sizes is the BOLT-LOK™ restrained joint offered?
In what sizes is the MECH-LOK™ restrained joint offered?
In what sizes is the SNAP-LOK™ restrained joint offered?
Is a mechanical joint a restrained joint?
Is it possible to use TALON™ RJ Gaskets with non-Griffin Ductile Iron Pipe?
What is the pressure rating of SNAP-LOK™, BOLT-LOK™, and MECH-LOK™ Ductile Iron Pipe?
What is the pressure rating of SNAP-LOK™, BOLT-LOK™, and MECH-LOK™ Ductile Iron Pipe?
What types of restrained joints does Griffin Pipe offer?


Customer Service

How many pieces of pipe can I get on a truck?
What should I do if I have a problem with your pipe?
What should I do if I have leftover pipe on a job, and need to return it?