2-way pilot operated solenoid valves for water, hot water and steam. Catalogue 8658/GB December 1999

Transcription

1 -way pilot operated solenoid valves for water, hot water and steam Catalogue 88/GB December 999

2 88/GB Technical specifications General description The Water Valves are diaphragm operated valves and require a minimum differential pressure to operate Applications They are used for general applications with high flow rates and media such as water, hot water and steam, provided they are compatible with the component materials. Typical applications can be found in: washing machine, car wash installations, cooling of machine tools, Hydrocleaners, autoclaves, irrigation systems etc Temperatures Admissible ambient temperatures: - to +0 C Admissible fluid temperature: see table Material specifications Valve body OT8 UNI 0 Forged Brass Plunger AISI 0F St. Steel Spring AISI 0 St. Steel Seals NBR (Buna N) EPDM Shading ring Copper Installation The valves can be mounted in any position. It is however recommended to install them with the coil in vertical position above the body. Electrical parts Detailed description: see page Coil Protection class / Power Order No. Lucifer. No. Connection Housing Ambient temp. Fig. Temperature class (hot) deg C DC AC Coil Coil Min Max mm Class F 9 W 8W DZ0 88 For DIN plug N -0 0 (Std) Class F 9 W 8 W DZ0 8 With DIN plug N -0 0 Class H 9 W 8 W DZ0 9 For DIN plug N Class H 9 W 8 W DZ0 9 With DIN plug N Class F, 0/0 Hz - 9 W DZ0 8 For DIN plug N -0 0 Class F, 0/0 Hz - 9 W DZ0 8 With DIN plug N -0 0 EEx m II T 9 W 8 W HZ0 90 With 000mm cable Class H W W DZ08 9 For DIN plug N Class H W W DZ09 9 With DIN plug N mm Class F 8 W 8 W EZ0 800 Screw-terminals E0-0 0 (Std) Class H 8 W 8 W EZ0 80 Screw-terminals E Class F, IP, Pg 8 W 8 W EZ0 800 Screw-terminals G -0 0 Class F, IP, Pg. 8 W 8 W EZ0 800 Screw-terminals G -0 0 EEx m II T/T 9 W 8 W VZ0 90 With 0mm cable / 8 EEx e II T 8 W 8 W HZ0 8 For cable connection 00-0 EEx me II T/T W 9 W VZ0 990 For cable connection 00-0 /0 Numbering / ordering system Normally a complete valve is composed of elements : the valve itself, the housing and the coil. For integrated coil/housings, the housing reference indicates the fixing nut and nameplate. Therefore please specify: Valve reference - Housing - Coil - Voltage Ordering example: BBGTN00 N DZ0 -/0 Important note: each reference may also be ordered separately (for replacement, spare parts)

3 88/GB Port Size Orifice Kv Qmax Admissible differential pressure (bar) max Max. admissible fluid temperature Seals material Reference N Dimension ref. Note G mm m/h m/h min DC AC... C -way valves, pilot operated, normally closed, for water / NBR BBGTN00 - /" NBR BBGTN00 - /" NBR BBGN NBR BBGN00 - / NBR BBG8N00 - /" NBR BBG88N NBR BBG99N00 - -way valves, pilot operated, normally closed for water, with manual override /8" NBR BBGTNM0 - /" NBR BBGTNM0 - /" NBR BBGNM NBR BBGNM0 / NBR BBG8NM0 /" NBR BBG88NM NBR BBG99NM0 //" NBR BBGCBNM " NBR BBGDCNM -way valves, pilot operated, normally closed, for hot water and steam / EPDM BBGTE00 - /" EPDM BBGTE00 - /" EPDM BBGE00 - " EPDM BBGE00 - /.. 0. EPDM BBG8E00 - /" EPDM BBG88E EPDM BBG99E00 - -way valves, pilot operated, normally open, for water / NBR BBGTN00 - /" NBR BBGTN00 - /" NBR BBGN NBR BBGN00 - / NBR BBG8N00 - /" NBR BBG88N NBR BBG99N00 - N Note - Manual override and closure speed control standard Note - For manual override and closure speed control change M0 by M

4 88/GB Manual override Manual override plus closure Speed operator..00 changes to..m0 in the reference No. The manual control is used to operate the valve without connecting the coil. The control consists in a slotted-head screw for a screwdriver and has two possible positions: Closed: The letter C is in the upper position of the screw head (fig., ) Open: The letter A is in the upper position of the screw head (fig., ) In the closed position, the valve operates normally when coil is energised/de-energised...00 changes to..m in the reference No. The closure time of certain types can be changed by means of the adjusting screw (fig. and ). The latter, by acting as a throttle on the inlet equalisation (pilot) hole of the valve, slows down the closure speed of the valve, thus reducing the water hammer effect. The regulation range is as follows: Fig. - Screw fully open: max. closure speed. Fig. - Screw fully closed: valve always open (fig. ). Fig. Fig. Fig. Fig. Section drawing

5 88/GB Diagrams of the closing times Curve Closing time with adjusting screw completely open Curve Closing time with adjusting screw open by / turn / - / - / /

6 88/GB Dimension drawings Size G A B C D / /. 0 / 0. / / 8 8 / Dim. drawing No. Size G A B C D /8 9 0 / 0 / 0. /. / / Dim. drawing No.

7 88/GB ELECTRICAL PARTS DESCRIPTION. Standard coil N- DZ0 (DC 9W, AC 8W) encapsulated in synthetic material. Connection for P + E DIN 0 A plug. Degree of protection IP.. High Temperature coil N-DZ08 (W DC, AC) or N-DZ0 (9W DC, AC) encapsulated in synthetic material. Connection for P + E DIN 0 A plug. Degree of protection IP.. Metallic coil housing E0 with standard coil EZ0 (8W), high temperature EZ0 (8W) coils, encapsulated in synthetic material with screw terminals. Ground terminal on housing subplate. Degree of protection IP or IP when equipped with Pg 9 cable gland.. Waterproof coil housing G with standard coil EZ0 (8W) encapsulated in synthetic material. Housing internally and externally fitted with an earth screw connection. Cable connection with outer diameter - mm through rubber cable gland Pg /,. Degree of protection IP.. Electrical part 00-HZ0 with increased safety EEx e II T CENELEC rating. Certification from LCIE. Degree of protection IP. This electrical part includes a standard coil type EZ0(8 W).. Explosion-proof EEx m II T (IP ) coil/housing assembly 00-HZ0. Coil and magnetic circuit encapsulated in synthetic material. The complete housing is supplied with an encapsulated connection cable ( x 0. mm² section), cable length is 000 mm with cable gland Pg. Power consumption: 8W AC, 9W DC.. Explosion-proof EEx me II T coil/housing assembly 00-VZ0. Glassfiber reinforced synthetic housing with encapsulated solenoid coil, rectifier, fuse and protection into epoxy resin. Degree of protection IP. Cable connection through cable gland Pg, (DIN ). Power consumption AC W, DC 9 W. 8. Explosion-proof EEx m II T coil/housing assembly 00-VZ0. Epoxy coated steel housing with encapsulated solenoid coil, rectifier, fuse and protection into epoxy resin. Degree of protection IP. The complete housing is supplied with an encapsulated connection cable consisting of three wires of each. mm sectional area, cable length is 0 mm with cable gland Pg. Power consumption AC 8 W, DC 8 W. Fig., Fig. Fig. Fig. Fig. Fig. Fig. 8

8 Via E. Fermi, -00 Gessate (MI) - Italy Tel Fax Catalogue 88/GB Dec. 999