Spirax Sarco BT6-B BT6-BH Clean Type Pressure Balance Steam Trap

Description

The Spirax Sarco BT6-B Clean Pressure Balance Steam Trap is designed for clean and pure system trapping and can be used for sterilizers, main line traps, CIP/SIP systems and process lines. The valve body is made of 316L stainless steel and the seat is tilted at 15° to ensure self-venting. The temperature sensing element is extremely sensitive to condensate temperature, and the discharge temperature is close to saturation temperature, within 2°C below saturated steam for typical clean applications with steam pressures below 2.5 barg. Each trap is individually packaged in a clean environment with inlet and outlet covers and sealed in a plastic bag.

Sizes and pipe connections

Available in 1/2", 3/4", 1", 1 1/2" sizes with ASME BPE sanitary clamp connections. Please consult Spirax Sarco for other connections.

material (that sth is made of)

Item	Part	material (that sth is made of)	(an official) standard
1	upper valve body	stainless steels	ASTM A276 316L
2	lower valve body	stainless steels	ASTM A276 316L
3	temperature sensing element	stainless steels	AISI 316L
4	Valve body connection card box	stainless steels	AISI 316
5	seals	Tuf-steel PTFE + AISI 316; Viton seals with PTFE jacket are available for dairy industry

Available Models

Available types	Displacement characteristics
BT6-BL	low emission
BT6-BH	high displacement

Pressure/temperature limits (ISO 6552)

Valve body design conditions	parameters
PN	10
PMA Maximum Allowable Pressure	10 bar g 140°C
TMA Maximum Allowable Temperature	177° C@9.2barg
Minimum permissible temperature	-254°C
PMO Maximum Working Pressure under Saturated Steam	6 bar g
TMO Maximum Operating Temperature	165°C@6 bar g
Minimum working temperature	0°C
Design maximum cold hydraulic test pressure	15 bar g

NOTE: Refer to im-P180-31issue9 for information on how to perform a hydraulic test.

surface treatment

Inside surface polished to 0.6 μm (25 micro-inch Ra), outside surface polished to 1.0 μm (40 micro-inch Ra). Optional electrolytic polishing to 0.375 μm (15 micro-inch Ra) is available.

Other Options

For applications requiring discharge temperatures close to saturated steam temperatures, such as SIPs in critical situations, consult Spirax Sarco.

(an official) standard

Products are fully compliant with ASME BPE and the European Pressure Equipment Directive 2014/68/EU.All seals comply with FDA CFR title 21,part 177,ection 1550 and USP24 class Vl, ADI (Animal Derived Ingredient Free).

Note: For sanitary clamp connections, the maximum pressure/temperature may be determined by the gasket or clamp, consult Spirax Sarco for details.

Certification

EN 10204 3.1 material certificates, internal surface finish certificates, FDA/USP certificates are available at extra cost.

Displacement (in accordance with ISO 7842)

Different models have different cold water discharge and hot water discharge at different differential pressures.

Security information, installation and maintenance

For detailed information, refer to the Installation and Maintenance Guide (IM-P180-31) supplied with the product.

Installation Tips

The BT6-B is designed to be mounted vertically with the flow direction facing downward to ensure self-venting of the valve body. Check the flow direction indicator arrow on the valve body during installation. Gaskets and mounting clamps are not supplied with the product. A section of cooling tubing must be left upstream to prevent condensate from accumulating on process equipment during normal operation. The temperature sensing element must not be subjected to excessive heat conditions. All parts should be handled with care to prevent damage to the machined surfaces.

manipulate

The working element is a stainless steel bladder filled with temperature-sensitive liquid. When cold or starting up, the liquid capsule is in a relaxed state and the spool valve seat is fully open, allowing the discharge of large quantities of air, condensate and IP media. When the system temperature approaches saturated steam temperature, the liquid in the bladder expands, closing the valve and preventing steam leakage. The closing temperature is close to the saturated steam temperature to ensure effective drainage of the system.

place an order

Example: 1 x Spirax Sarco V "BT6-BH Clean Pressure Balance Steam Trap, ASME BPE sanitary clamp connection, max. working pressure 6 bar g, inner surface electrolytically polished to 0.375 μm (15 micro-inch Ra), with material certificate EN 102043.1.

weights

caliber	Weight (kg)
1/2"	0.70
3/4"	0.71
1"	0.94
1 1/2"	0.86