Honeywell VGF Manuale utente

® U.S. Registered Trademark

INSTALLATION INSTRUCTIONS

62-0213

VGF

Flanged Globe Valves

APPLICATION

VGF Flanged Globe Valves are used for on-off or

modulating control of steam, hot water, or chilled water-

glycol solutions up to 50% concentration in heating,

ventilating and air conditioning (HVAC) systems. They

can be operated by ML6984/7984, ML6420/6425,

ML7420/7425, M6421/7421 Electric Linear Actuators,

MP953 Pneumatic Actuators, Modutrol® Motors with

Q5001 valve linkage, or MN/MS series Direct Coupled

Actuators with Q5020 valve linkage.

Three-way bodies are available in mixing or diverting

style with equal percentage and linear flow characteristic.

Pressure-balanced models feature very high, low

leakage close-off ratings. Flanges conform to ANSI

standard B16.1, Classes 125 and 250, with face-to-face

dimensions per ANSI/ISA 75.03

Fig. 1. Proper hoisting of VGF Valves.

Safety

The valves are to be installed by skilled personnel and in

strict accordance with the installation instructions and

local regulations. (See Fig. 1 for proper hoisting method.)

Honeywell assumes no responsibility for damages or

injuries resulting from non-compliance with installation

instructions or standard good practice when mounting,

operating, or maintaining the valves, even if not explicitly

mentioned in the installation instructions. (See Fig. 2 for

basic pipe orientation.) Observe all safety practices when

working with steam systems.

Proper Use

These valves are only for use in cold, warm, hot water

systems and for steam applications. They are designed

for a medium temperature range of from 35 to 355°F, at a

maximum pressure of 125 or 250 psig, depending on

their ANSI body class. They are to be operated with the

appropriate Honeywell actuators only. Please refer to the

VGF family product data sheet, form 63-2618 for detail.

Water should be properly filtered, treated and

conditioned according to local conditions. The installation

of a strainer is strongly recommended.

Fig. 2. Basic pipe orientation.

VGF FLANGED GLOBE VALVES

62-0213 2

INSTALLATION

When Installing this Product...

1. Read these instructions carefully. Failure to follow

them could damage the product or cause a

hazardous condition.

2. Check ratings given in instructions and on the

product to ensure the product is suitable for your

application.

3. Installer must be a trained, experienced service

technician.

4. After installation is complete, check out product

operation as provided in these instructions.

WARNING

Severe Burn Hazard.

Contact with hot liquid can lead to severe

injury or cause death.

Release system pressure and isolate or drain the

valve pipe section so the medium (steam, water

or glycol solution) does not leak out of the valve

body during installation (see Fig. 3).

CAUTION

Electrical Shock or Equipment Damage Hazard.

Can shock individuals or short equipment

circuitry.

Disconnect power supply to the actuator to

prevent electrical shock and equipment

damage, or remove and cap the air line to the

actuator.

IMPORTANT

• Before installing the valve, raise and lower the

valve stem to make sure that the valve stem

operates freely. Impaired stem operation can

indicate that the stem was bent by rough

handling. This condition can require replacing

the valve.

• Protect the stem from damage due to bending

or scratching.

Fig. 3. Piping must prevent leakage.

Location

Select a location where the valve and actuator are

accessible. Allow sufficient space for servicing the valve

and actuator. See Fig. 6 for valve body dimensions.

Mounting the Valve

See Fig. 5 for typical installation.

1. Hoist valve by its body only. Do not lift by stem,

bonnet, flanges, or flange holes. (See Fig. 1.)

2. Install the valve so the flow follows the direction of

the arrow indicated on the valve body.

3. Install the valve so the actuator is above the valve

body. The valve can be installed in any position

between vertical and horizontal. Do not install the

valve with the stem below horizontal or upside

down.

4. When controlling steam, use appropriate high

temperature kit 43196000 and rotate valve body so

that actuator is not positioned directly above the

piping.

5. Use companion flanges with the same number of

bolt holes and dimensions as the valve to be

installed. The optional service flange may be

installed in the lower port. See Table 1 for part

numbers. Use standard cast-iron flanges for the

two end ports.

6. Use a gasket material recommended for the

medium to be handled.

7. Use mounting bolts long enough so the nuts can

use the full length of the nut threads. (See Fig. 4.)

Use bolts 1/8 in. smaller than the diameter of the

bolt hole to allow clearance for installing. (See

Fig. 5.)

Table 1. Service Flange Part Numbers.

Fig. 4. Basic proper bolt length.

Valve Size

in in. (mm) ANSI 125 ANSI 250

2 1/2 (65) 208628 208633

3 (80) 208629 208634

4 (100) 208630 208635

5 (125) 208631 208636

6 (150) 208632 208637

133 in-lb

(15 Nm)

VGF FLANGED GLOBE VALVES

3 62-0213

Mounting Actuator

For information on mounting, refer to the Product Data

literature for the actuator. Actuator installation clearances

are provided. It is important to have the correct actuator

available for the installation. See Table 2 for basic

clearance information.

Table 2. Installation Clearances

(from Valve Bonnet, B).

Fig. 5. Flanged valve body installation.

Fig. 6. Dimensions for valve installation.

Table 3. Valve Sizes and Dimensions.

aThree-way valves only.

NOTE: See VGF family Product Data sheet

(form 63-2618) for complete specifications.

CHECKOUT

For instructions for operating the valve actuator, see the

Product Data sheet for the specific actuator. Operate the

control system and check the valve operation to

determine that the valve stem positions the valve

smoothly through full stroke without binding.

Actuator

Minimum

Vertical Clearance

in in. (mm)

ML6420, ML7420 12-11/16 (322)

ML6421A, ML7421A 14-1/4 (360)

ML6421B, ML7421B 16-7/8 (430)

ML6425A,B; ML7425A,B 14-5/16 (364)

MN/MS Series + Q5020 12 (305)

ML6984, ML7984

Modutrol IV + Q5001 14-1/2 (369)

MP953C (8 inch dia) 11-7/8 (302)

MP953C (13 inch dia) 17-11/16 (449)

MP953E (8 inch dia) 16-1/2 (420)

MP953E (13 inch dia) 25-13/16 (655)

COMPANION

FLANGE

GASKET

BE SURE FACE OF COMPANION FLANGE IS FLUSH

WITH FACE OF VALVE-BODY FLANGE AND ALIGNED

SQUARELY BEFORE TIGHTENING MOUNTING NUTS.

OPTIONAL SERVICE FLANGE

COMPANION FLANGE

PIPE M7977

Size

Dimensions, in. (mm)

See Fig. 6

in. DN A Da

ANSI Class 125

2-1/2 65 10-7/8 (276) 3-3/4 (95)

3 80 11-3/4 (298) 4-3/8 (111)

4 100 13-7/8 (352) 5-1/8 (130)

5 125 15-3/4 (400) 5-3/4 (146)

6 150 17-3/4 (451) 6-5/8 (168)

ANSI Class 250

2-1/2 65 11-1/2 (292) 3-3/4 (95)

3 80 12-1/2 (318) 4-3/8 (111)

4 100 14-1/2 (368) 5-1/8 (130)

5 125 16-5/8 (422) 5-3/4 (146)

6 150 18-5/8 (473) 6-5/8 (168)

M22409

1DOTTED LINE REPRESENTS ANSI 125

VALVE BONNET.

Stroke Y

62-0213 B.B. 9-04 www.honeywell.com

Automation and Control Solutions

Honeywell International Inc. Honeywell Limited-Honeywell Limitée

1985 Douglas Drive North 35 Dynamic Drive

Golden Valley, MN 55422 Scarborough, Ontario

M1V 4Z9

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