Cla-val 81-07/681-07 Manuel d'utilisateur télécharger pdf

Non-Slam Dual Speed Control Check Valve

• Simple Proven Design

• No-Slam Operation

• Drip-Tight Shut-Off

• Dual Speed Control

• No Packing Glands or Stuffing Boxes

• Available in a Variety of Materials

The Cla-Val Model 81-07/681-07 Non-Slam Dual Speed Control Check

Valve is a hydraulically operated No-Slam Check Valve with dual speed

controls. This valve opens when the pressure at the inlet exceeds the dis-

charge pressure. A gradual rate of opening prevents sudden opening

surges. When a pressure reversal occurs, the higher downstream pressure

is applied to the cover chamber through the control tube lines, and the valve

closes drip tight.

This valve is ideally suited for use where a positive shutoff is required. The

rubber disc assures tight sealing even if the fluid contains grit or other small-

size particles. The simple packless design insures reliable operation and

freedom from leaks.

Note: The effectiveness of this valve is related to pipeline velocity. We rec-

ommend a maximum flow based on pipeline velocity of 6 feet per second.

If pipeline velocities exceed 6 feet per second, consideration should be

given to adding a Cla-Val Model 50-01 Pressure Relief Valve or a Cla-Val

Model 52 Series Surge Control Valve to the system.

Schematic Diagram

Item Description

1 Hytrol (Reverse Flow Main Valve)

2 CV Flow Control (Opening)

3 CSC Swing Check Valve

4 CGA Ange Valve (Closing)

Optional Features

Item Description

P X141 Pressure Gauge

V X101 Valve Position Indicator

Typical Applications

CLA-VAL

50-01/650-01

Surge Relief Valve

Isolation

Valve

Pump

TANK

81-07/681-07

Booster Pump

Check Valve

CLA-VAL 61-02

Pump Control Valve

CLA-VAL 81-07

Check Valve

CLA-VAL 52-03/652-03

Surge Anticipator Valve

Pump

Discharge To

Atmosphere

Discharge To

Atmosphere

Discharge To System

Pressure Sensing Line

Deep Well Pump

This valve should be an integral part of any well designed pumping

system. It is used to prevent damaging and sometimes expensive

flow reversal.

Booster Pump

Install on the discharge of booster pumps to prevent re-

turn flow into tank when pump is off. Relief valve as shown

is good practice to minimize

surges when pump stops.

81-07

(Full Internal Port)

681-07

(Reduced Internal Port)

MODEL

1 2 3 4

Résumé du contenu

Page 1 - Typical Applications

Non-Slam Dual Speed Control Check Valve• Simple Proven Design• No-Slam Operation• Drip-Tight Shut-Off• Dual Speed Control• No Packing Glands or Stuffi

Page 2 - Pressure Ratings

Model 81-07 (Uses Basic Valve Model 100-01)Dimensions(In inches)Model 81-07 Dimensions (In Inches)Component Standard Material CombinationsBody & C

Page 3

EEDEInletDDAAX100-20FlangedFAC(MAX)KJHInletOutletFFB(Diameter)Dimensions(In inches)Model 681-07 (Uses Basic Valve Model 100-20)Model 681-07 Dimensions

Page 4 - Pilot System Specifications

Temperature RatingWater: to 180°F. Max.Speed ControlsOpening and closing speed controls arestandard on the 81-02 and 681-02 Model.* Note: Advise fac

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Cla-val 81-07/681-07 Manuel d'utilisateur

Naviguer en ligne ou télécharger Manuel d'utilisateur pour Équipement Cla-val 81-07/681-07. Cla-Val 81-07/681-07 User Manual Manuel d'utilisatio

Résumé du contenu

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