Honeywell SM110 Product specification sheet

Construction

The safety valve comprises:

• Angled housing

• Adjustment spring

• Diaphragm

• Security cap with part label

Materials

• Brass housing

• Spring steel adjustment spring

• High grade synthetic material security cap

• Hot water resistant elastomer diaphragm

EN0H-1366GE23 R0509 • Subject to change

SM110

Diaphragm safety valve

for closed heating systems

Product specification sheet

Application

Membrane safety valves of this type are used to protect closed heating systems according to EN 12828.

In accordance with statutory requirements, the diaphragm safety valve is preset to the required fixed set pressure by the manufacturer and is sealed with an embossed security cap marked with the test badge and pressure rating to prevent unauthorised tampering with the setting. Subsequent alteration of the setting is not permitted and is impossible without destroying the security cap. The preset pressure is embossed on the security cap.

Special Features

• Certified to Pressure Equipment Directive 97/23/EC, Reference No. CE 0036

• Standardised discharge connection

• With lifting device

• Protected against subsequent changing of the default settings

Range of Application

The membrane safety valve is only suitable to drain the following media from closed heating systems according to EN 12828 for protection against exceeding pressure

Medium Water or glycol-water mixture,

according to VDI 2035 Liquids of the fluid group 1 and 2 (pres-

sure device guideline, item 9) which do not affect the materials used.

Technical Data

Installation position Horizontal with safety cap pointing up Opening pressure Factory preset to 1.5, 2.0, 2.5, 3.0, 4.0 or

6.0 bar Subsequent alteration of the setting is not

permitted and is impossible without

destroying the security cap Operating temperatureMax. 120 °C Connection size Internal thread on inlet

Internal thread on outlet

External thread on inlet

thread on outlet

Valve size is defined by the size of the inlet

connection

/2", 3/4",

/2", 3/4", 1"

/2" with internal

/4"

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SM110 Diaphragm safety valve

∅ D

REintritt

Method of Operation

Diaphragm safety valves of this type are directacting safety valves in which the disc is pushed up by the pressure from the system against a spring which is holding the valve closed. If the opening force exceeds the force exerted by the spring, then the valve disc is lifted off the valve seat and the valve discharges the medium. In accordance with the requirements of the standard, the full discharge capacity of the valve will be achieved when the system pressure climbs to no more than 10% above the set pressure of the valve. Full shutoff must be achieved if the system pressure falls to below 80% of the nominal set pressure of the valve. For valves rated up to 3.0 bar, the closing pressure can be

RAustritt

taken as 0.6 bar minimum.

Options OS.-No. Set pressureConnection

size Inlet SM110- 1/2ZA2.5 2.5 bar Rp SM110- 1/2ZA3.0 3 bar Rp SM110- 1/2A1.5 1.5 bar Rp SM110- 1/2A2.0 2.0 bar Rp SM110- 1/2A2.5 2.5 bar Rp SM110- 1/2A3.0 3.0 bar Rp SM110- 1/2A4.0 4.0 bar Rp SM110- 1/2A6.0 6.0 bar Rp SM110- 3/4ZA2.5 2.5 bar Rp SM110- 3/4ZA3.0 3.0 bar Rp SM110- 3/4A1.5 1.5 bar Rp SM110- 3/4A2.5 2.5 bar Rp SM110- 3/4A3.0 3.0 bar Rp SM110- 3/4A4.0 4.0 bar Rp SM110- 1/2AA1.5 1.5 bar Rp SM110- 1/2AA2.0 2.0 bar Rp SM110- 1/2AA3.0 3.0 bar Rp

/2" IG Rp1/2" IG

/2" IG Rp3/4" IG

/4" IG Rp3/4" IG

/4" IG Rp1" IG

/2" AG Rp3/4" IG

Connection size Outlet

Connection size Inlet R Connection size Outlet R

/2" IG

/4" IG

/2" IG

/4" IG 1" IG

/4" IG

/2" AG

/4" IG

Dimensions (mm)

60 33 46

∅ D

60 33

62 33 46

60 33 46

62 36

46 Weight g 135 145 140 150 140 Maximum permissible heat input (kW) 50 100 50 100 50 TÜV Approval Nos. - - TÜV · SV · ..* - 2017 · 13 · H · 2,5bar

TÜV · SV · ..* - 2017 · 13 · H · 3bar ..* valid Approval No. Only the products with an outlet diameter larger than the inlet diameter are TÜV-certified.

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EN0H-1366GE23 R0509 • Subject to change

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