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BU19 by Dixon Valve | Boss® Clamp | 4-Bolt Type | 2-Gripping Fingers | 1-1/4" Hose ID | Hose OD: from 1-50/64" to 2-6/64" | Zinc Plated Iron

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Dixon Valve
Boss® Clamp | 4-Bolt Type | 2-Gripping Fingers

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Specifications for Variant SKU: BU19 Dixon
Brand:	Boss
Shape (Orientation):	0
Material(s):	Zink-Plated Iron
Minimum Clamp I.D.:	1-50/64
Maximum Clamp I.D.:	2-6/64

Features:
4-Bolt type clamp. 2 Gripping fingers. 2 Clamp sections.
Use:
The correct size Boss Clamp must be used. Bolts in Boss Clamps are designed to bend as they are tightened. This allows the clamp to conform to the hose outside diameter. Always tighten bolts to their specified torque value. Periodic re-tightening of bolts is required due to "cold flow" phenomenon present in all rubber hoses. Boss Clamps are for single use only! Once removed they are to be discarded.
Specifications:
Recommended for steam service up to 450°F (232°C).
Instructions:
4 Bolt Dixon Boss Clamp Bolt Tightening Sequence, Using a torque wrench, begin tightening the bolts as follows: A) Back bolt (bolt with nut facing assembler that is furthest away from gripping finger) 1 full turn. B) Front bolt (bolt with nut facing assembler that is closest to gripping finger) 1 full turn. C) Snug by hand (if bolts are loose) nuts on opposite side of bolts just torqued. D) Opposite side back bolt (bolt with nut facing assembler furthest away from gripping finger) 1 full turn. E) Opposite side front bolt (bolt with nut facing assembler closest to gripping finger) 1 full turn. F) Snug by hand (if bolts are loose) nuts on opposite side of bolts just torqued. G) Repeat above procedure "a" through "f" until all of the bolts have reached the recommended torque. H) Remove assembly from vise.
Safety Notes:
The bolts used in the Boss interlocking clamps are not standard bolts. They vary from standard bolts in their length, diameter, overall thread length and material hardness. These bolts can be retorqued, but it is not recommended that the bolts or clamps be reused, as they are designed for a single bend only. Dixon Recommends using only factory supplied replacement bolts. Replacement nuts and bolts are available, contact Dixon for more information. Torque values for clamps are based on dry bolts. The use of lubricant on bolts will adversely effect clamp performance. Do not lubricate nuts and bolts. Recommended torque rating in ft. lbs. Worn-out hose couplings can be dangerous. They should be checked regularly and replace when necessary. Each coupling user should review applications and add safety devices where indicated. Note. Pressurized steam is an extremely dangerous commodity. Only hose, fittings, clamps and accessory items that have been approved for steam service should ever be used! Never use an unapproved item for steam service. Always follow the manufacturer's product recommendations for pressurized steam handling.

Zinc Plated Iron Part Number	Stainless Steel**** Part Number	Brass Part Number	Hose I.D.	Hose O.D.		Torque ft.lbs.**
Zinc Plated Iron Part Number	Stainless Steel**** Part Number	Brass Part Number	Hose I.D.	from	to	Torque ft.lbs.**
BU14	RBU14	BBU14	1"	1-34/64"	1-46/64"	21 ft.lbs 18 ft.lbs (for Brass)
B14	RB14	-	1"	1-44/64"	1-60/64"	21 ft.lbs
BU15	-	-	1"	1-60/64"	2-8/64"	21 ft.lbs
BU18	-	-	1-1/4"	1-32/64"	1-50/64"	40 ft.lbs
BU19	-	-	1-1/4"	1-50/64"	2-6/64"	40 ft.lbs
B19	RB19	-	1-1/4"	2-8/64"	2-24/64"	40 ft.lbs
BU22	-	-	1-1/2"	1-52/64"	2"	40 ft.lbs
B22	-	-	1-1/2"	2"	2-14/64"	40 ft.lbs
BU24	RBU24	-	1-1/2"	2-12/64"	2-24/64"	40 ft.lbs
B24	RB24	-	1-1/2"	2-24/64"	2-36/64"	40 ft.lbs
B25	-	-	1-1/2"	2-36/64"	2-48/64"	40 ft.lbs
BU28	-	-	2"	2-22/64"	2-34/64"	60 ft.lbs
BU29	RBU29	BBU29*	2"	2-32/64"	2-50/64"	60 ft.lbs 40 ft.lbs (for Brass)
B29	RB29	-	2"	2-48/64"	3-4/64"	60 ft.lbs
B30	-	-	2"	3-6/64"	3-28/64"	60 ft.lbs
BU34	-	-	2-1/2"	3-6/64"	3-28/64"	60 ft.lbs
B34	-	-	2-1/2"	3-32/64"	3-60/64"	150 ft.lbs
BU35	RBU35	-	3"	3-32/64"	3-60/64"	150 ft.lbs
B35	-	-	3"	3-52/64"	4-4/64"	150 ft.lbs
B39	-	-	3"	4-4/64"	4-28/64"	200 ft.lbs

** Torque applies to plated iron and stainless steel clamps
*** Global investment cast carbon steel
**** When installing stainless steel bolts and nuts, the use of anti-seize or anti-galling lubricant is advised. A light coat is required on the bolt threads to prevent thread galling and artificial torque reading.

Dixon Valve & Coupling

Dixon, founded in 1916, is a premier manufacturer and supplier of hose couplings, valves, dry disconnects, swivels, and other fluid transfer and control products. Our global reach includes a wide range of products for numerous industries including petroleum exploration, refining, transportation, chemical processing, food and beverage, steel, fire protection, construction, mining, and manufacturing.

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