Pipe Coupling
Introduction
Plumbing Coupling
Plumbing couplings are those fittings that permanently connect or couple one pipe to another pipe fittings together in order to extend the pipeline in one direction. Plumbing couplings made of PVC are used with plumbing PVC pipes. PVC stands for polyvinyl chloride plastic which is a high quality, strong plastic that withstands temperature upto 60 Deg C. The coupling plumbing fitting is a very short length of pipe or tube with a socket in both ends. PVC Couplers are of two types plain couplers and threaded couplers which are sometimes also known as adaptors.
PVC pipe coupling or Socket (Plain):
Plain PVC pipe coupling have pipes joint on both sides using PVC solvent cement. Sockets are also available in reducing type called PVC Reducing Sockets or Couplers which connect a pipe of higher size with one of smaller size.
PVC pipe threaded coupling or PVC Threaded Adaptor (all plastic):
Plastic threaded adaptors available in both male and female threaded types have inner threads of PVC as well as such one must be careful while tightening them with metallic plumbing fixtures. These kind of adaptors are not recommended for high pressure applications.
PVC Brass coupling or PVC Brass Threaded Adaptor:
Brass threaded adaptors have brass threaded inserts on one end and PVC on the other so as to connect the pipe to the bathroom fittings or other plumbing fixtures. Brass threaded adaptors can be male threaded or female threaded.
PVC plumbing couplings are available in:
½” (15mm), ¾”(20mm), 1” (25mm), 1 ¼”(32mm), 1 ½”(40mm), 2” (50mm), 2 ½”(75mm), 3” (90mm), 4” (110mm), 6” (160mm) & 8” (200mm) Schedule 80.
2 ½”(75mm), 3” (90mm), 4” (110mm) in Schedule 40 for low pressure usage.
STANDARDS FOR PVC PIPE COUPLINGS
ASTM D 1784
Standard Specification for Rigid Poly(Vinyl Chloride) (PVC) Compounds and Chlorinated Poly(Vinyl Chloride) (CPVC) Compounds
ASTM D 2466
Standard Specification for Poly(Vinyl Chloride) (PVC) Plastic Pipe Fittings, Schedule 40
ASTM D 2467
Standard Specification for Poly(Vinyl Chloride) (PVC) Plastic Pipe Fittings, Schedule 80
ASTM D 2464
Standard Specification for Threaded Poly(Vinyl Chloride) (PVC) Plastic Pipe Fittings, Schedule 80
Applications of Pipe/Plumbing Couplings and Fittings
PVC coupling can be used wherever plumbing or pipe systems can be found.
- Individual residential units
- Large residential complexes
- Commercial buildings
- Hotels and Hospitals
- Swimming Pools
- RO and DM water plants
- Industrial Applications (based on chemical resistance chart)
- For other applications, kindly check with authorized Ajay representative
Why Choose Ajay Greenline UPVC Pipes and fittings?
Ajay Greenline is made from a non-toxic plastic compound and is free from lead which makes it comparatively safer. At Ajay Greenline, all the UPVC pipes and UPVC fittings are devised in a way that they are resistant to any kind of bacterial growth.
Better than plumbing applications manufactured from metals and concrete, Ajay Greenline has a higher resilience which makes them even more durable.
FAQs
A pipe coupling is a short fitting with a socket on both ends, used to permanently join two pipes together and extend a pipeline in one direction. PVC couplings use solvent cement on both ends and are rated for temperatures up to 60°C.
A plain PVC coupling (socket) joins two pipes permanently using solvent cement on both ends, while a threaded coupling, also called a threaded adaptor, connects a pipe to a fixture using threads instead. Threaded adaptors come in male and female types and are not recommended for high-pressure applications.
A PVC reducing socket, or reducing coupler, is a coupling designed to connect a pipe of a larger diameter to one of a smaller diameter within a single fitting. This lets a plumber transition pipe sizes without needing a separate reducer bushing.
A plastic (all-PVC) threaded adaptor has PVC threads on both the male and female sides and needs careful, not over-tightened, installation against metallic fixtures. A brass threaded adaptor has a brass threaded insert on one end and PVC on the other, giving it more durable, wear-resistant threads for connecting to bathroom fittings or other plumbing fixtures.
PVC pipe couplings are available in Schedule 80 from ½” (15mm) up to 8″ (200mm), including ½”, ¾”, 1″, 1¼”, 1½”, 2″, 2½”, 3″, 4″, 6″ and 8″. In Schedule 40, they’re available in 2½” (75mm), 3″ (90mm) and 4″ (110mm) for low-pressure applications only.
For any queries, contact the plumbing experts at Ajay pipes on the Toll Free No. : 1800-11-4050 or via email at our email address info@ajaypipes.com
