Nopak Full Line Catalog
192Pages

First in Manufacturing. Engineered to Last. Cylinders & Valves Full Line Catalog

I First in Manufacturing. Engineered to Last.

Table of Contents Table of Contents Class 1, 2, M Low Pressure Cast-Head Cylinders . . . . . . . . . . . . . . 5 . . Severe Service Hydraulic and Pneumatic Cylinders . . . . . . . . . . 19 High Pressure Square-Head Cylinders. . . . . . . . . . . . 23 Low Pressure NFPA Aluminum Cylinders. . . . . . . . . . . . . . 69 Intermediate Pressure Square-Head Cylinders. . . . . . . . . . . 93 Directional Control Valves Hand, Foot and Solenoid . . . . . . . . 143 . . Boosters, Intensifiers and Air/Oil Tanks Terms and Conditions of Sale. . . . . . . . . . . . 189

Low Pressure Cast-Head Cylinders First in Manufacturing. Engineered to Last.

Low Pressure Cast-Head Cylinders Low Pressure Cast-Head Cylinders. . . . . . . . . . 6 CLASS 1 CAST-HEAD CYLINDERS Options, Modifications and Ordering Information. . . . . . . . . . . . . . . . . . . . . . 7 For normal applications where low-cost, rugged air cylinders are required. Our exclusive design has been “user-proven” with over 80 years of experience as the work horse of industry. Class 1, 2 & M Cast-Head Cylinder Cutaway View. . . . . . . . . . . . . . . . . . . . 8 CLASS 2 CAST-HEAD CYLINDERS Cylinder Design and Construction Features . . . . . . . . . . . . . . . . . . . . . 9...

Options, Modifications and Ordering Information Options Custom Modifications Bore Size Stop Tubes The bore size of an air cylinder should be selected to supply from 125% to 200% of the required force. The excess of force versus load will result in a faster cylinder speed assuming there is an adequate supply of air into and out of the cylinder. In long cylinders used on push applications, internal stop tubes may be necessary to prevent excessive bearing wear. When stop tubes are required with a cushioned air cylinder, a dual or wider piston or similar arrangement is recommended to reduce the...

Class 1, 2 & M Cast-Head Cylinder Cutaway View Sectional view of a NOPAK Double-Acting Cylinder with Adjustable Cushions. It graphically illustrates 8 other features of NOPAK Cylinder construction which contribute to smooth, efficient performance under severe operating conditions. MOUNTINGS Classes 1, 2 and M are available in the five standard mountings designated as Models A, C, D, E and F, illustrated on pages 10 to 15 inclusive. Leakproof gasket seal – Between cylinder wall and head on Class 1 cylinders. Recessed gasket on Class 2 and Class M cylinders. Piston Assembly: U Cup Packings,...

Cylinder Design and Construction Features Types of Cushioning Action (Classes 1, 2 and M) Self-Regulating Cushion Type (Operates Automatically) The self-regulating cylinder head requires no adjustment. Once the cylinder is assembled, its operation is entirely automatic. As the cushion sleeve enters the bore in the cylinder head, the air or fluid is trapped between the piston and the cylinder head, forming a pneumatic or hydraulic cushion. Predetermined taper on the cushion sleeve and tolerance between it and bore in the cylinder head provide the selfregulating, positive cushion action. This...

Parallel Base Mounting Model A S R End view illustrates 4 tie rod spacing incorporated in the 10", 12" and 14" bore sizes. See dimension L. Q 1-1/2" thru 4" bore sizes use 4 tie rods, 5" thru 8" bore sizes use 6 tie rods, all evenly spaced and located symmetrically about inlet centerline. CLASS 1 or 2 Double Acting Cylinder Refer to page 9 for rod and thread information. FOR 16" DIAMETER AND LARGER, REFER TO THE Class 6 Section. Model “A” is used primarily in applications requiring straight-line push-pull motion where cylinder can be mounted on a flat surface. Intermediate supports can be...

Clevis Mounting Model E INLET End view illustrates 4 tie rod spacing incorporated in the 10", 12" and 14" bore sizes. See dimension L. CLASS 1 or 2 Double Acting Cylinder E 1-1/2" thru 4" bore sizes use 4 tie rods, 5" thru 8" bore sizes use 6 tie rods, all evenly spaced and located symmetrically about inlet centerline. Refer to page 9 for rod and thread information. FOR 16" DIAMETER AND LARGER, REFER TO THE Class 6 Section. Model E is designed expressly for use in hoist service or where articulated or oscillating movement is required. It is often attached to ceiling, beam or other overhead...

Model C Blind End Mounting Refer to page 9 for rod and thread information. CLASS 1 or 2 Double Acting Cylinder FOR 16" DIAMETER AND LARGER, REFER TO THE Class 6 Section. NOTE: 4-Hole Mounting is used on Model C Cylinders from 4" to 14" in diameter. NOTE: 2-Hole Mounting is used on Model C Cylinders from 1-1/2" to 3" in diameter. Model C may be mounted on any flat base with provision for protruding cushion boss*. It is used in applications of upward pushing power; also for cantilever action when mounted at right angles to a wall or other vertical surface. * Flush mounting available at extra...

Right Angle Flat Base Mounting Model D Rod End Mounting Refer to page 9 for M rod and thread information. C FOR 16" DIAMETER AND LARGER, REFER TO THE Class 6 Section. CLASS 1 or 2 Double Acting Cylinder NOTE: 4-Hole Mounting is used on Model D Cylinders from 4" to 14" in diameter. NOTE: 2-Hole Mounting is used on Model D Cylinders from 1-1/2" to 3" in diameter. Model D is similar in construction to Model C, except that the piston rod is extended through the mounting base. It may be mounted on any flat surface in which an opening can be provided for the protruding cushion boss and extension...

Trunnion Mounting Model F G 1-1/2" thru 4" bore sizes use 4 tie rods, 5" thru 8" bore sizes use 6 tie rods, all evenly spaced and located symmetrically about inlet centerline. Refer to page 9 for rod and thread information. CLASS 1 or 2 Double Acting Cylinder End view illustrates 8 tie rod spacing incorporated in the 10", 12" and 14" bore sizes. See dimension L. FOR 16" DIAMETER AND LARGER, REFER TO THE Class 6 Section. The Model F Trunnion Mounting provides smooth, dependable cylinder power where oscillating movement is necessary in connection with heavy side thrust. Trunnion location is...