PTFE EXPANSION JOINT

PTFE EXPANSION JOINT

PTFE EXPANSION JOINT
PTFE EXPANSION JOINT
Product Information
Product Name - PTFE EXPANSION JOINT
MODEL NST-PTFEK
Product Category - · Nordsteam Steam and Flow Control Group · Expansion Joints
Product Brand - Nordsteam

Product Features
PTFE EXPANSION JOINT

NST-PTFEK expansion joints are unreinforced PTFE that come standart with iron 150# drill flanges. Stainless flanges are also available.They are available in 2,3 or 5 convolutions of varing movements. The 2-convolution is sometimes referred to as a “coupling". Molded flexible couplings and expansion joints of PTFE designed to help protect pumps,compressors and other expensive equipments. Bellows-type flexible couplings and expansion joints are contour molded of PTFE by a patented process. It is resistant to corrosion and has a long life cycle and peerless safety. The flexible element is formed over the full sealing face of the end flanges eliminating troublesome separate gaskets. Note the change in pressure rating with temperature.

OPERATING CONDITIONS
PRESSURE CLASS PN16               
MAX.TEMPERATURE 200°C

NO PART NAME MATERIAL
1 BELLOWS PTFE
2 FLANGE St 37.2 ~ SS304 ~SS 316

SIZE

LENGTH
(Inc)

LATERAL
(Inc) 
WT(lbs) PRESS@70F (psi) PRESS@200F (psi) PRESS@300F (psi) PRESS@400F (psi)
DN25 1 3/8 1/8 170 135 100 70
DN40 1 3/8 1/8 3 170 135 100 70
DN50 1 9/16 1/8 7 170 135 95 65
DN65 2 1/4 1/8 10 165 130 95 65
DN80 2 1/4 3/16 12 165 125 90 60
DN100 2 5/8 1/4 18 160 125 85 60
DN125 3 1/4 1/4 24 155 120 85 60
DN150 2 3/4 1/4 29 150 115 85 55
DN200 4 1/4 47 145 110 80 55
DN250 4 1/4 1/4 64 140 110 80 55
DN300 6 1/4 72 135 105 75 50