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CLARKSON

 KNIFE GATE VALVE MODEL ZP3OO

INSTALLATION AND MAINTENANCE INSTRUCTIONS

HANDWHEEL OR BEVEL GEAR OPERATED 
VALVES

Equipment orientation

Valves may be stored in the vertical or 
horizontal position.

Preparation for storage

Valves may be stored as shipped, provided 
the storage facility and equipment orientation 
instructions above are followed. If valve 
packaging is altered or removed for receiving 
inspection, repackage valve as originally 
received. Standard packaging materials cannot 
be considered sufficient for outdoor storage.

Storage inspection

Visual inspection shall be performed on a semi-
annual basis and results recorded. Inspection 
as a minimum shall include reviewing the 
following:
• Packaging
• Flange covers
• Dryness
• Cleanliness

Maintenance

Maintenance shall consist of correcting 
deficiencies noted during inspection. All 
maintenance shall be recorded. Contact factory 
prior to performing any maintenance if valve is 
still covered under warranty.

CYLINDER SUPPORT METHODS FOR 
HORIZONTALLY OR OFF-VERTICAL MOUNTING

Cylinders may require additional support when 
mounted other than in vertical position. Failure 
to do so could lead to premature failure of 
cylinder and/or valve. The following illustrations 
are suggestions; specific details will have to 
be determined by customer so support best 
suits surrounding area. It is important that the 
cylinder/gate alignment be maintained during 
valve operation. Supports should be designed 
to maintain alignment and support bulk of 
cylinder weight.

RECOMMENDED LONG TERM STORAGE

The following are recommendations for storage 
procedures to retain maximum product integrity 
during long term storage of 1 to 5 years.

Storage facility

The preferred storage location is a clean, dry 
protected warehouse. If valves are to be stored 
outside, precautions should be taken to keep valves 
clean and dry. Standard packaging materials 
cannot be considered sufficient for outdoor storage.

INSTALLATION A

Appropriate tie-in capable of supporting load.

Turnbuckle for adjustment

Saddle style hanger

INSTALLATION B

Appropriate tie-in capable of supporting load.

Saddle style support

INSTALLATION C

Appropriate tie-in capable of supporting load.

Turnbuckle for adjustment

Alternate head-support,

saddle style preferred

Summary of Contents for Clarkson ZP300

Page 1: ...ial Seat material URET Packing material Packing material TPE GR COMPLIANCE LABEL 3 Mating line flanges must be properly aligned Slip on or weld flanges can be used Never try to make up for misaligned pipe flanges by the line bolting 4 Flange fasteners should be tightened in a uniform manner using a cross pattern to prevent distortion of the valve 5 Pipe supports and or expansion joints should be u...

Page 2: ...s are design to suit flanges compliant to ASME B16 5 and B16 47 and gaskets designed to ASME VIII 1 Appendix 2 and ASME B16 20 and B16 21 Torque on Flange bolt should not exceed values shown in Table 1 TABLE 1 MAXIMUM TORQUE ON FLANGE BOLT STUD Valve size NPS Bolt size Torque ft lb Recommended bolt length in Recommended stud length in INITIAL INSPECTION NOTES 1 Maximum torque should not be exceede...

Page 3: ...cylinder design and mounting arrangement HYDRAULIC CYLINDER SIZE AND REQUIRED FLOW RATE Valve size NPS HC size Rod size Fluid flow rate in 3 sec 1 in s Max close 1 in s Max open WARNING To minimize stress concentration in flow ring ensure flange gasket ID is matched with flow ring ID as shown in Figure 2 GASKET DETAIL FIGURE 2 Gasket Gasket ID matched to flow ring ID Flow ring with overlay HYDRAUL...

Page 4: ...tor 6 Electric motor actuated valves should be left in their factory set condition unless the system operating parameters dictate a change If changes are necessary they should be performed in small increments using the lightest lowest setting possible to achieve the desired performance and then the valve actuator function inspected Excess torque and or thrust in the motor settings may damage or lo...

Page 5: ...essive corrosion bitumen build up tears in rod boot etc Check rod boot connections Check for cylinder rod seal blow by FIGURE 11 Major components Cast body Polymer liner UHMPW PE Polyurethane seat Body O ring 17 4PH gate Packing gland Packing Gate scraper Flow ring Flow ring O ring 2 Packing gland check for leaks or worn packing If leakage is occurring around the packing gland tighten the packing ...

Page 6: ... compressed to obtain an elongated smaller piece Note not all sizes have smaller end pieces some will have equal size end pieces 6 Install packing gland with studs Bellville Washers and nuts as shown in Figure 17 For initial tightening of packing gland tighten packing gland to achieve a compression between 0 125 0 375 Use Loctite 262 Red on studs to secure in body Note ensure each stack is facing ...

Page 7: ...27 000 16 2 78 16 2 76 24 50 27 630 16 2 78 8 2 76 25 00 28 000 8 2 78 16 2 76 28 4 25 00 26 50 30 000 24 3 00 27 00 30 130 8 3 00 16 2 95 30 4 27 00 1 32 000 1 8 3 22 24 2 95 28 50 1 32 500 1 16 3 22 29 00 1 32 750 24 3 22 32 4 29 00 1 34 500 1 24 3 41 1 31 00 1 35 380 1 8 3 41 16 3 41 36 4 33 00 1 38 500 3x1 24 3 68 34 50 1 39 000 1 16 3 68 8 3 68 35 00 1 39 375 1 8 3 68 16 3 68 42 4 38 50 1 44 ...

Page 8: ...NTING Cylinders may require additional support when mounted other than in vertical position Failure to do so could lead to premature failure of cylinder and or valve The following illustrations are suggestions specific details will have to be determined by customer so support best suits surrounding area It is important that the cylinder gate alignment be maintained during valve operation Supports ...

Page 9: ...zontal position Preparation for storage Valves may be stored as shipped provided the storage facility and equipment orientation instructions above are followed If valve packaging is altered or removed for receiving inspection repackage valve as originally received Standard packaging materials cannot be considered sufficient for outdoor storage Cylinder storage These cylinder storage instructions a...

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